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Author SHA1 Message Date
Greg Kroah-Hartman
8ca5759502 This is the 4.19.73 stable release
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Merge 4.19.73 into android-4.19

Changes in 4.19.73
	ALSA: hda - Fix potential endless loop at applying quirks
	ALSA: hda/realtek - Fix overridden device-specific initialization
	ALSA: hda/realtek - Add quirk for HP Pavilion 15
	ALSA: hda/realtek - Enable internal speaker & headset mic of ASUS UX431FL
	ALSA: hda/realtek - Fix the problem of two front mics on a ThinkCentre
	sched/fair: Don't assign runtime for throttled cfs_rq
	drm/vmwgfx: Fix double free in vmw_recv_msg()
	vhost/test: fix build for vhost test
	vhost/test: fix build for vhost test - again
	powerpc/tm: Fix FP/VMX unavailable exceptions inside a transaction
	batman-adv: fix uninit-value in batadv_netlink_get_ifindex()
	batman-adv: Only read OGM tvlv_len after buffer len check
	hv_sock: Fix hang when a connection is closed
	Blk-iolatency: warn on negative inflight IO counter
	blk-iolatency: fix STS_AGAIN handling
	{nl,mac}80211: fix interface combinations on crypto controlled devices
	timekeeping: Use proper ktime_add when adding nsecs in coarse offset
	selftests: fib_rule_tests: use pre-defined DEV_ADDR
	x86/ftrace: Fix warning and considate ftrace_jmp_replace() and ftrace_call_replace()
	powerpc/64: mark start_here_multiplatform as __ref
	media: stm32-dcmi: fix irq = 0 case
	arm64: dts: rockchip: enable usb-host regulators at boot on rk3328-rock64
	scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
	riscv: remove unused variable in ftrace
	nvme-fc: use separate work queue to avoid warning
	clk: s2mps11: Add used attribute to s2mps11_dt_match
	remoteproc: qcom: q6v5: shore up resource probe handling
	modules: always page-align module section allocations
	kernel/module: Fix mem leak in module_add_modinfo_attrs
	drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"
	media: cec/v4l2: move V4L2 specific CEC functions to V4L2
	media: cec: remove cec-edid.c
	scsi: qla2xxx: Move log messages before issuing command to firmware
	keys: Fix the use of the C++ keyword "private" in uapi/linux/keyctl.h
	Drivers: hv: kvp: Fix two "this statement may fall through" warnings
	x86, hibernate: Fix nosave_regions setup for hibernation
	remoteproc: qcom: q6v5-mss: add SCM probe dependency
	drm/amdgpu/gfx9: Update gfx9 golden settings.
	drm/amdgpu: Update gc_9_0 golden settings.
	KVM: x86: hyperv: enforce vp_index < KVM_MAX_VCPUS
	KVM: x86: hyperv: consistently use 'hv_vcpu' for 'struct kvm_vcpu_hv' variables
	KVM: x86: hyperv: keep track of mismatched VP indexes
	KVM: hyperv: define VP assist page helpers
	x86/kvm/lapic: preserve gfn_to_hva_cache len on cache reinit
	drm/i915: Fix intel_dp_mst_best_encoder()
	drm/i915: Rename PLANE_CTL_DECOMPRESSION_ENABLE
	drm/i915/gen9+: Fix initial readout for Y tiled framebuffers
	drm/atomic_helper: Disallow new modesets on unregistered connectors
	Drivers: hv: kvp: Fix the indentation of some "break" statements
	Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up
	powerplay: Respect units on max dcfclk watermark
	drm/amd/pp: Fix truncated clock value when set watermark
	drm/amd/dm: Understand why attaching path/tile properties are needed
	ARM: davinci: da8xx: define gpio interrupts as separate resources
	ARM: davinci: dm365: define gpio interrupts as separate resources
	ARM: davinci: dm646x: define gpio interrupts as separate resources
	ARM: davinci: dm355: define gpio interrupts as separate resources
	ARM: davinci: dm644x: define gpio interrupts as separate resources
	s390/zcrypt: reinit ap queue state machine during device probe
	media: vim2m: use workqueue
	media: vim2m: use cancel_delayed_work_sync instead of flush_schedule_work
	drm/i915: Restore sane defaults for KMS on GEM error load
	drm/i915: Cleanup gt powerstate from gem
	KVM: PPC: Book3S HV: Fix race between kvm_unmap_hva_range and MMU mode switch
	Btrfs: clean up scrub is_dev_replace parameter
	Btrfs: fix deadlock with memory reclaim during scrub
	btrfs: Remove extent_io_ops::fill_delalloc
	btrfs: Fix error handling in btrfs_cleanup_ordered_extents
	scsi: megaraid_sas: Fix combined reply queue mode detection
	scsi: megaraid_sas: Add check for reset adapter bit
	scsi: megaraid_sas: Use 63-bit DMA addressing
	powerpc/pkeys: Fix handling of pkey state across fork()
	btrfs: volumes: Make sure no dev extent is beyond device boundary
	btrfs: Use real device structure to verify dev extent
	media: vim2m: only cancel work if it is for right context
	ARC: show_regs: lockdep: re-enable preemption
	ARC: mm: do_page_fault fixes #1: relinquish mmap_sem if signal arrives while handle_mm_fault
	IB/uverbs: Fix OOPs upon device disassociation
	crypto: ccree - fix resume race condition on init
	crypto: ccree - add missing inline qualifier
	drm/vblank: Allow dynamic per-crtc max_vblank_count
	drm/i915/ilk: Fix warning when reading emon_status with no output
	mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies
	tpm: Fix some name collisions with drivers/char/tpm.h
	bcache: replace hard coded number with BUCKET_GC_GEN_MAX
	bcache: treat stale && dirty keys as bad keys
	KVM: VMX: Compare only a single byte for VMCS' "launched" in vCPU-run
	iio: adc: exynos-adc: Add S5PV210 variant
	dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant
	iio: adc: exynos-adc: Use proper number of channels for Exynos4x12
	mt76: fix corrupted software generated tx CCMP PN
	drm/nouveau: Don't WARN_ON VCPI allocation failures
	iwlwifi: fix devices with PCI Device ID 0x34F0 and 11ac RF modules
	iwlwifi: add new card for 9260 series
	x86/kvmclock: set offset for kvm unstable clock
	spi: spi-gpio: fix SPI_CS_HIGH capability
	powerpc/kvm: Save and restore host AMR/IAMR/UAMOR
	mmc: renesas_sdhi: Fix card initialization failure in high speed mode
	btrfs: scrub: pass fs_info to scrub_setup_ctx
	btrfs: scrub: move scrub_setup_ctx allocation out of device_list_mutex
	btrfs: scrub: fix circular locking dependency warning
	btrfs: init csum_list before possible free
	PCI: qcom: Fix error handling in runtime PM support
	PCI: qcom: Don't deassert reset GPIO during probe
	drm: add __user attribute to ptr_to_compat()
	CIFS: Fix error paths in writeback code
	CIFS: Fix leaking locked VFS cache pages in writeback retry
	drm/i915: Handle vm_mmap error during I915_GEM_MMAP ioctl with WC set
	drm/i915: Sanity check mmap length against object size
	usb: typec: tcpm: Try PD-2.0 if sink does not respond to 3.0 source-caps
	arm64: dts: stratix10: add the sysmgr-syscon property from the gmac's
	IB/mlx5: Reset access mask when looping inside page fault handler
	kvm: mmu: Fix overflow on kvm mmu page limit calculation
	x86/kvm: move kvm_load/put_guest_xcr0 into atomic context
	KVM: x86: Always use 32-bit SMRAM save state for 32-bit kernels
	cifs: Fix lease buffer length error
	media: i2c: tda1997x: select V4L2_FWNODE
	ext4: protect journal inode's blocks using block_validity
	ARM: dts: qcom: ipq4019: fix PCI range
	ARM: dts: qcom: ipq4019: Fix MSI IRQ type
	ARM: dts: qcom: ipq4019: enlarge PCIe BAR range
	dt-bindings: mmc: Add supports-cqe property
	dt-bindings: mmc: Add disable-cqe-dcmd property.
	PCI: Add macro for Switchtec quirk declarations
	PCI: Reset Lenovo ThinkPad P50 nvgpu at boot if necessary
	dm mpath: fix missing call of path selector type->end_io
	blk-mq: free hw queue's resource in hctx's release handler
	mmc: sdhci-pci: Add support for Intel CML
	PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify code
	cifs: smbd: take an array of reqeusts when sending upper layer data
	dm crypt: move detailed message into debug level
	signal/arc: Use force_sig_fault where appropriate
	ARC: mm: fix uninitialised signal code in do_page_fault
	ARC: mm: SIGSEGV userspace trying to access kernel virtual memory
	drm/amdkfd: Add missing Polaris10 ID
	kvm: Check irqchip mode before assign irqfd
	drm/amdgpu: fix ring test failure issue during s3 in vce 3.0 (V2)
	drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc
	Btrfs: fix race between block group removal and block group allocation
	cifs: add spinlock for the openFileList to cifsInodeInfo
	clk: tegra: Fix maximum audio sync clock for Tegra124/210
	clk: tegra210: Fix default rates for HDA clocks
	IB/hfi1: Avoid hardlockup with flushlist_lock
	apparmor: reset pos on failure to unpack for various functions
	scsi: target/core: Use the SECTOR_SHIFT constant
	scsi: target/iblock: Fix overrun in WRITE SAME emulation
	staging: wilc1000: fix error path cleanup in wilc_wlan_initialize()
	scsi: zfcp: fix request object use-after-free in send path causing wrong traces
	cifs: Properly handle auto disabling of serverino option
	ALSA: hda - Don't resume forcibly i915 HDMI/DP codec
	ceph: use ceph_evict_inode to cleanup inode's resource
	KVM: x86: optimize check for valid PAT value
	KVM: VMX: Always signal #GP on WRMSR to MSR_IA32_CR_PAT with bad value
	KVM: VMX: Fix handling of #MC that occurs during VM-Entry
	KVM: VMX: check CPUID before allowing read/write of IA32_XSS
	KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct
	KVM: PPC: Book3S HV: Fix CR0 setting in TM emulation
	ARM: dts: gemini: Set DIR-685 SPI CS as active low
	RDMA/srp: Document srp_parse_in() arguments
	RDMA/srp: Accept again source addresses that do not have a port number
	btrfs: correctly validate compression type
	resource: Include resource end in walk_*() interfaces
	resource: Fix find_next_iomem_res() iteration issue
	resource: fix locking in find_next_iomem_res()
	pstore: Fix double-free in pstore_mkfile() failure path
	dm thin metadata: check if in fail_io mode when setting needs_check
	drm/panel: Add support for Armadeus ST0700 Adapt
	ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips
	powerpc/mm: Limit rma_size to 1TB when running without HV mode
	iommu/iova: Remove stale cached32_node
	gpio: don't WARN() on NULL descs if gpiolib is disabled
	i2c: at91: disable TXRDY interrupt after sending data
	i2c: at91: fix clk_offset for sama5d2
	mm/migrate.c: initialize pud_entry in migrate_vma()
	iio: adc: gyroadc: fix uninitialized return code
	NFSv4: Fix delegation state recovery
	bcache: only clear BTREE_NODE_dirty bit when it is set
	bcache: add comments for mutex_lock(&b->write_lock)
	bcache: fix race in btree_flush_write()
	drm/i915: Make sure cdclk is high enough for DP audio on VLV/CHV
	virtio/s390: fix race on airq_areas[]
	drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors
	ext4: don't perform block validity checks on the journal inode
	ext4: fix block validity checks for journal inodes using indirect blocks
	ext4: unsigned int compared against zero
	PCI: Reset both NVIDIA GPU and HDA in ThinkPad P50 workaround
	powerpc/tm: Remove msr_tm_active()
	powerpc/tm: Fix restoring FP/VMX facility incorrectly on interrupts
	vhost: make sure log_num < in_num
	Linux 4.19.73

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7bc57825aeb36759bb8e8726888da9af06392c09
2019-09-16 09:35:02 +02:00
Sébastien Szymanski
87c3692172 drm/panel: Add support for Armadeus ST0700 Adapt
[ Upstream commit c479450f61 ]

This patch adds support for the Armadeus ST0700 Adapt. It comes with a
Santek ST0700I5Y-RBSLW 7.0" WVGA (800x480) TFT and an adapter board so
that it can be connected on the TFT header of Armadeus Dev boards.

Cc: stable@vger.kernel.org # v4.19
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507152713.27494-1-sebastien.szymanski@armadeus.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-16 08:22:21 +02:00
Christoph Muellner
e4ba157877 dt-bindings: mmc: Add disable-cqe-dcmd property.
[ Upstream commit 28f22fb755 ]

Add disable-cqe-dcmd as optional property for MMC hosts.
This property allows to disable or not enable the direct command
features of the command queue engine.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Fixes: 84362d79f4 ("mmc: sdhci-of-arasan: Add CQHCI support for arasan,sdhci-5.1")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-16 08:22:12 +02:00
Sowjanya Komatineni
eb83f9fa10 dt-bindings: mmc: Add supports-cqe property
[ Upstream commit c7fddbd5db ]

Add supports-cqe optional property for MMC hosts.

This property is used to identify the specific host controller
supporting command queue.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-16 08:22:11 +02:00
Krzysztof Kozlowski
0d7f329e24 iio: adc: exynos-adc: Use proper number of channels for Exynos4x12
[ Upstream commit 103cda6a3b ]

Exynos4212 and Exynos4412 have only four ADC channels so using
"samsung,exynos-adc-v1" compatible (for eight channels ADCv1) on them is
wrong.  Add a new compatible for Exynos4x12.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-16 08:22:06 +02:00
Jonathan Bakker
4e516b721a dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant
[ Upstream commit a9b0a2a7c1 ]

Add information about new compatible for S5PV210

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-16 08:22:06 +02:00
Greg Kroah-Hartman
12dc90c620 This is the 4.19.69 stable release
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Merge 4.19.69 into android-4.19

Changes in 4.19.69
	HID: Add 044f:b320 ThrustMaster, Inc. 2 in 1 DT
	MIPS: kernel: only use i8253 clocksource with periodic clockevent
	mips: fix cacheinfo
	netfilter: ebtables: fix a memory leak bug in compat
	ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks
	selftests/bpf: fix sendmsg6_prog on s390
	bonding: Force slave speed check after link state recovery for 802.3ad
	net: mvpp2: Don't check for 3 consecutive Idle frames for 10G links
	selftests: forwarding: gre_multipath: Enable IPv4 forwarding
	selftests: forwarding: gre_multipath: Fix flower filters
	can: dev: call netif_carrier_off() in register_candev()
	can: mcp251x: add error check when wq alloc failed
	can: gw: Fix error path of cgw_module_init
	ASoC: Fail card instantiation if DAI format setup fails
	st21nfca_connectivity_event_received: null check the allocation
	st_nci_hci_connectivity_event_received: null check the allocation
	ASoC: rockchip: Fix mono capture
	ASoC: ti: davinci-mcasp: Correct slot_width posed constraint
	net: usb: qmi_wwan: Add the BroadMobi BM818 card
	qed: RDMA - Fix the hw_ver returned in device attributes
	isdn: mISDN: hfcsusb: Fix possible null-pointer dereferences in start_isoc_chain()
	mac80211_hwsim: Fix possible null-pointer dereferences in hwsim_dump_radio_nl()
	netfilter: ipset: Actually allow destination MAC address for hash:ip,mac sets too
	netfilter: ipset: Copy the right MAC address in bitmap:ip,mac and hash:ip,mac sets
	netfilter: ipset: Fix rename concurrency with listing
	rxrpc: Fix potential deadlock
	rxrpc: Fix the lack of notification when sendmsg() fails on a DATA packet
	isdn: hfcsusb: Fix mISDN driver crash caused by transfer buffer on the stack
	net: phy: phy_led_triggers: Fix a possible null-pointer dereference in phy_led_trigger_change_speed()
	perf bench numa: Fix cpu0 binding
	can: sja1000: force the string buffer NULL-terminated
	can: peak_usb: force the string buffer NULL-terminated
	net/ethernet/qlogic/qed: force the string buffer NULL-terminated
	NFSv4: Fix a potential sleep while atomic in nfs4_do_reclaim()
	NFS: Fix regression whereby fscache errors are appearing on 'nofsc' mounts
	HID: quirks: Set the INCREMENT_USAGE_ON_DUPLICATE quirk on Saitek X52
	HID: input: fix a4tech horizontal wheel custom usage
	drm/rockchip: Suspend DP late
	SMB3: Fix potential memory leak when processing compound chain
	SMB3: Kernel oops mounting a encryptData share with CONFIG_DEBUG_VIRTUAL
	s390: put _stext and _etext into .text section
	net: cxgb3_main: Fix a resource leak in a error path in 'init_one()'
	net: stmmac: Fix issues when number of Queues >= 4
	net: stmmac: tc: Do not return a fragment entry
	net: hisilicon: make hip04_tx_reclaim non-reentrant
	net: hisilicon: fix hip04-xmit never return TX_BUSY
	net: hisilicon: Fix dma_map_single failed on arm64
	libata: have ata_scsi_rw_xlat() fail invalid passthrough requests
	libata: add SG safety checks in SFF pio transfers
	x86/lib/cpu: Address missing prototypes warning
	drm/vmwgfx: fix memory leak when too many retries have occurred
	block, bfq: handle NULL return value by bfq_init_rq()
	perf ftrace: Fix failure to set cpumask when only one cpu is present
	perf cpumap: Fix writing to illegal memory in handling cpumap mask
	perf pmu-events: Fix missing "cpu_clk_unhalted.core" event
	KVM: arm64: Don't write junk to sysregs on reset
	KVM: arm: Don't write junk to CP15 registers on reset
	selftests: kvm: Adding config fragments
	HID: wacom: correct misreported EKR ring values
	HID: wacom: Correct distance scale for 2nd-gen Intuos devices
	Revert "dm bufio: fix deadlock with loop device"
	clk: socfpga: stratix10: fix rate caclulationg for cnt_clks
	ceph: clear page dirty before invalidate page
	ceph: don't try fill file_lock on unsuccessful GETFILELOCK reply
	libceph: fix PG split vs OSD (re)connect race
	drm/nouveau: Don't retry infinitely when receiving no data on i2c over AUX
	gpiolib: never report open-drain/source lines as 'input' to user-space
	Drivers: hv: vmbus: Fix virt_to_hvpfn() for X86_PAE
	userfaultfd_release: always remove uffd flags and clear vm_userfaultfd_ctx
	x86/retpoline: Don't clobber RFLAGS during CALL_NOSPEC on i386
	x86/apic: Handle missing global clockevent gracefully
	x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h
	x86/boot: Save fields explicitly, zero out everything else
	x86/boot: Fix boot regression caused by bootparam sanitizing
	dm kcopyd: always complete failed jobs
	dm btree: fix order of block initialization in btree_split_beneath
	dm integrity: fix a crash due to BUG_ON in __journal_read_write()
	dm raid: add missing cleanup in raid_ctr()
	dm space map metadata: fix missing store of apply_bops() return value
	dm table: fix invalid memory accesses with too high sector number
	dm zoned: improve error handling in reclaim
	dm zoned: improve error handling in i/o map code
	dm zoned: properly handle backing device failure
	genirq: Properly pair kobject_del() with kobject_add()
	mm, page_owner: handle THP splits correctly
	mm/zsmalloc.c: migration can leave pages in ZS_EMPTY indefinitely
	mm/zsmalloc.c: fix race condition in zs_destroy_pool
	xfs: fix missing ILOCK unlock when xfs_setattr_nonsize fails due to EDQUOT
	xfs: don't trip over uninitialized buffer on extent read of corrupted inode
	xfs: Move fs/xfs/xfs_attr.h to fs/xfs/libxfs/xfs_attr.h
	xfs: Add helper function xfs_attr_try_sf_addname
	xfs: Add attibute set and helper functions
	xfs: Add attibute remove and helper functions
	xfs: always rejoin held resources during defer roll
	dm zoned: fix potential NULL dereference in dmz_do_reclaim()
	powerpc: Allow flush_(inval_)dcache_range to work across ranges >4GB
	rxrpc: Fix local endpoint refcounting
	rxrpc: Fix read-after-free in rxrpc_queue_local()
	rxrpc: Fix local endpoint replacement
	rxrpc: Fix local refcounting
	Linux 4.19.69

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9824a29e0434a6a80e2f32fdb88c0ac1fe8e5af5
2019-09-02 17:39:29 +02:00
Alexander Potapenko
a5587d8fce UPSTREAM: mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options
Upstream commit 6471384af2 ("mm: security: introduce init_on_alloc=1
and init_on_free=1 boot options").

Patch series "add init_on_alloc/init_on_free boot options", v10.

Provide init_on_alloc and init_on_free boot options.

These are aimed at preventing possible information leaks and making the
control-flow bugs that depend on uninitialized values more deterministic.

Enabling either of the options guarantees that the memory returned by the
page allocator and SL[AU]B is initialized with zeroes.  SLOB allocator
isn't supported at the moment, as its emulation of kmem caches complicates
handling of SLAB_TYPESAFE_BY_RCU caches correctly.

Enabling init_on_free also guarantees that pages and heap objects are
initialized right after they're freed, so it won't be possible to access
stale data by using a dangling pointer.

As suggested by Michal Hocko, right now we don't let the heap users to
disable initialization for certain allocations.  There's not enough
evidence that doing so can speed up real-life cases, and introducing ways
to opt-out may result in things going out of control.

This patch (of 2):

The new options are needed to prevent possible information leaks and make
control-flow bugs that depend on uninitialized values more deterministic.

This is expected to be on-by-default on Android and Chrome OS.  And it
gives the opportunity for anyone else to use it under distros too via the
boot args.  (The init_on_free feature is regularly requested by folks
where memory forensics is included in their threat models.)

init_on_alloc=1 makes the kernel initialize newly allocated pages and heap
objects with zeroes.  Initialization is done at allocation time at the
places where checks for __GFP_ZERO are performed.

init_on_free=1 makes the kernel initialize freed pages and heap objects
with zeroes upon their deletion.  This helps to ensure sensitive data
doesn't leak via use-after-free accesses.

Both init_on_alloc=1 and init_on_free=1 guarantee that the allocator
returns zeroed memory.  The two exceptions are slab caches with
constructors and SLAB_TYPESAFE_BY_RCU flag.  Those are never
zero-initialized to preserve their semantics.

Both init_on_alloc and init_on_free default to zero, but those defaults
can be overridden with CONFIG_INIT_ON_ALLOC_DEFAULT_ON and
CONFIG_INIT_ON_FREE_DEFAULT_ON.

If either SLUB poisoning or page poisoning is enabled, those options take
precedence over init_on_alloc and init_on_free: initialization is only
applied to unpoisoned allocations.

Slowdown for the new features compared to init_on_free=0, init_on_alloc=0:

hackbench, init_on_free=1:  +7.62% sys time (st.err 0.74%)
hackbench, init_on_alloc=1: +7.75% sys time (st.err 2.14%)

Linux build with -j12, init_on_free=1:  +8.38% wall time (st.err 0.39%)
Linux build with -j12, init_on_free=1:  +24.42% sys time (st.err 0.52%)
Linux build with -j12, init_on_alloc=1: -0.13% wall time (st.err 0.42%)
Linux build with -j12, init_on_alloc=1: +0.57% sys time (st.err 0.40%)

The slowdown for init_on_free=0, init_on_alloc=0 compared to the baseline
is within the standard error.

The new features are also going to pave the way for hardware memory
tagging (e.g.  arm64's MTE), which will require both on_alloc and on_free
hooks to set the tags for heap objects.  With MTE, tagging will have the
same cost as memory initialization.

Although init_on_free is rather costly, there are paranoid use-cases where
in-memory data lifetime is desired to be minimized.  There are various
arguments for/against the realism of the associated threat models, but
given that we'll need the infrastructure for MTE anyway, and there are
people who want wipe-on-free behavior no matter what the performance cost,
it seems reasonable to include it in this series.

[glider@google.com: v8]
  Link: http://lkml.kernel.org/r/20190626121943.131390-2-glider@google.com
[glider@google.com: v9]
  Link: http://lkml.kernel.org/r/20190627130316.254309-2-glider@google.com
[glider@google.com: v10]
  Link: http://lkml.kernel.org/r/20190628093131.199499-2-glider@google.com
Link: http://lkml.kernel.org/r/20190617151050.92663-2-glider@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.cz>		[page and dmapool parts
Acked-by: James Morris <jamorris@linux.microsoft.com>]
Cc: Christoph Lameter <cl@linux.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Kostya Serebryany <kcc@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Sandeep Patil <sspatil@android.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Jann Horn <jannh@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Change-Id: If0620a6a8aed34c21e98458c965e94f5a9dfd297
Bug: 138435492
Test: Boot cuttlefish with and without
Test:   CONFIG_INIT_ON_ALLOC_DEFAULT_ON/CONFIG_INIT_ON_FREE_DEFAULT_ON
Signed-off-by: Alexander Potapenko <glider@google.com>
2019-08-30 11:58:12 +02:00
Tom Lendacky
e063b03b45 x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h
commit c49a0a8013 upstream.

There have been reports of RDRAND issues after resuming from suspend on
some AMD family 15h and family 16h systems. This issue stems from a BIOS
not performing the proper steps during resume to ensure RDRAND continues
to function properly.

RDRAND support is indicated by CPUID Fn00000001_ECX[30]. This bit can be
reset by clearing MSR C001_1004[62]. Any software that checks for RDRAND
support using CPUID, including the kernel, will believe that RDRAND is
not supported.

Update the CPU initialization to clear the RDRAND CPUID bit for any family
15h and 16h processor that supports RDRAND. If it is known that the family
15h or family 16h system does not have an RDRAND resume issue or that the
system will not be placed in suspend, the "rdrand=force" kernel parameter
can be used to stop the clearing of the RDRAND CPUID bit.

Additionally, update the suspend and resume path to save and restore the
MSR C001_1004 value to ensure that the RDRAND CPUID setting remains in
place after resuming from suspend.

Note, that clearing the RDRAND CPUID bit does not prevent a processor
that normally supports the RDRAND instruction from executing it. So any
code that determined the support based on family and model won't #UD.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Cc: "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "x86@kernel.org" <x86@kernel.org>
Link: https://lkml.kernel.org/r/7543af91666f491547bd86cebb1e17c66824ab9f.1566229943.git.thomas.lendacky@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-29 08:28:53 +02:00
Greg Kroah-Hartman
de4c70d6a9 This is the 4.19.65 stable release
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Merge 4.19.65 into android-4.19

Changes in 4.19.65
	ARM: riscpc: fix DMA
	ARM: dts: rockchip: Make rk3288-veyron-minnie run at hs200
	ARM: dts: rockchip: Make rk3288-veyron-mickey's emmc work again
	ARM: dts: rockchip: Mark that the rk3288 timer might stop in suspend
	ftrace: Enable trampoline when rec count returns back to one
	dmaengine: tegra-apb: Error out if DMA_PREP_INTERRUPT flag is unset
	arm64: dts: rockchip: fix isp iommu clocks and power domain
	kernel/module.c: Only return -EEXIST for modules that have finished loading
	firmware/psci: psci_checker: Park kthreads before stopping them
	MIPS: lantiq: Fix bitfield masking
	dmaengine: rcar-dmac: Reject zero-length slave DMA requests
	clk: tegra210: fix PLLU and PLLU_OUT1
	fs/adfs: super: fix use-after-free bug
	clk: sprd: Add check for return value of sprd_clk_regmap_init()
	btrfs: fix minimum number of chunk errors for DUP
	btrfs: qgroup: Don't hold qgroup_ioctl_lock in btrfs_qgroup_inherit()
	cifs: Fix a race condition with cifs_echo_request
	ceph: fix improper use of smp_mb__before_atomic()
	ceph: return -ERANGE if virtual xattr value didn't fit in buffer
	ACPI: blacklist: fix clang warning for unused DMI table
	scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized
	perf version: Fix segfault due to missing OPT_END()
	x86: kvm: avoid constant-conversion warning
	ACPI: fix false-positive -Wuninitialized warning
	be2net: Signal that the device cannot transmit during reconfiguration
	x86/apic: Silence -Wtype-limits compiler warnings
	x86: math-emu: Hide clang warnings for 16-bit overflow
	mm/cma.c: fail if fixed declaration can't be honored
	lib/test_overflow.c: avoid tainting the kernel and fix wrap size
	lib/test_string.c: avoid masking memset16/32/64 failures
	coda: add error handling for fget
	coda: fix build using bare-metal toolchain
	uapi linux/coda_psdev.h: move upc_req definition from uapi to kernel side headers
	drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings
	ipc/mqueue.c: only perform resource calculation if user valid
	mlxsw: spectrum_dcb: Configure DSCP map as the last rule is removed
	xen/pv: Fix a boot up hang revealed by int3 self test
	x86/kvm: Don't call kvm_spurious_fault() from .fixup
	x86/paravirt: Fix callee-saved function ELF sizes
	x86, boot: Remove multiple copy of static function sanitize_boot_params()
	drm/nouveau: fix memory leak in nouveau_conn_reset()
	kconfig: Clear "written" flag to avoid data loss
	kbuild: initialize CLANG_FLAGS correctly in the top Makefile
	Btrfs: fix incremental send failure after deduplication
	Btrfs: fix race leading to fs corruption after transaction abort
	mmc: dw_mmc: Fix occasional hang after tuning on eMMC
	mmc: meson-mx-sdio: Fix misuse of GENMASK macro
	gpiolib: fix incorrect IRQ requesting of an active-low lineevent
	IB/hfi1: Fix Spectre v1 vulnerability
	mtd: rawnand: micron: handle on-die "ECC-off" devices correctly
	selinux: fix memory leak in policydb_init()
	ALSA: hda: Fix 1-minute detection delay when i915 module is not available
	mm: vmscan: check if mem cgroup is disabled or not before calling memcg slab shrinker
	s390/dasd: fix endless loop after read unit address configuration
	cgroup: kselftest: relax fs_spec checks
	parisc: Fix build of compressed kernel even with debug enabled
	drivers/perf: arm_pmu: Fix failure path in PM notifier
	arm64: compat: Allow single-byte watchpoints on all addresses
	arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG}
	nbd: replace kill_bdev() with __invalidate_device() again
	xen/swiotlb: fix condition for calling xen_destroy_contiguous_region()
	IB/mlx5: Fix unreg_umr to ignore the mkey state
	IB/mlx5: Use direct mkey destroy command upon UMR unreg failure
	IB/mlx5: Move MRs to a kernel PD when freeing them to the MR cache
	IB/mlx5: Fix clean_mr() to work in the expected order
	IB/mlx5: Fix RSS Toeplitz setup to be aligned with the HW specification
	IB/hfi1: Check for error on call to alloc_rsm_map_table
	drm/i915/gvt: fix incorrect cache entry for guest page mapping
	eeprom: at24: make spd world-readable again
	ARC: enable uboot support unconditionally
	objtool: Support GCC 9 cold subfunction naming scheme
	gcc-9: properly declare the {pv,hv}clock_page storage
	x86/vdso: Prevent segfaults due to hoisted vclock reads
	scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA
	x86/cpufeatures: Carve out CQM features retrieval
	x86/cpufeatures: Combine word 11 and 12 into a new scattered features word
	x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations
	x86/speculation: Enable Spectre v1 swapgs mitigations
	x86/entry/64: Use JMP instead of JMPQ
	x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS
	Documentation: Add swapgs description to the Spectre v1 documentation
	Linux 4.19.65

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iceeabdb164657e0a616db618e6aa8445d56b0dc1
2019-08-06 20:08:18 +02:00
Josh Poimboeuf
7634b9cd27 Documentation: Add swapgs description to the Spectre v1 documentation
commit 4c92057661 upstream

Add documentation to the Spectre document about the new swapgs variant of
Spectre v1.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-06 19:06:58 +02:00
Josh Poimboeuf
23e7a7b3a7 x86/speculation: Enable Spectre v1 swapgs mitigations
commit a205982598 upstream

The previous commit added macro calls in the entry code which mitigate the
Spectre v1 swapgs issue if the X86_FEATURE_FENCE_SWAPGS_* features are
enabled.  Enable those features where applicable.

The mitigations may be disabled with "nospectre_v1" or "mitigations=off".

There are different features which can affect the risk of attack:

- When FSGSBASE is enabled, unprivileged users are able to place any
  value in GS, using the wrgsbase instruction.  This means they can
  write a GS value which points to any value in kernel space, which can
  be useful with the following gadget in an interrupt/exception/NMI
  handler:

	if (coming from user space)
		swapgs
	mov %gs:<percpu_offset>, %reg1
	// dependent load or store based on the value of %reg
	// for example: mov %(reg1), %reg2

  If an interrupt is coming from user space, and the entry code
  speculatively skips the swapgs (due to user branch mistraining), it
  may speculatively execute the GS-based load and a subsequent dependent
  load or store, exposing the kernel data to an L1 side channel leak.

  Note that, on Intel, a similar attack exists in the above gadget when
  coming from kernel space, if the swapgs gets speculatively executed to
  switch back to the user GS.  On AMD, this variant isn't possible
  because swapgs is serializing with respect to future GS-based
  accesses.

  NOTE: The FSGSBASE patch set hasn't been merged yet, so the above case
	doesn't exist quite yet.

- When FSGSBASE is disabled, the issue is mitigated somewhat because
  unprivileged users must use prctl(ARCH_SET_GS) to set GS, which
  restricts GS values to user space addresses only.  That means the
  gadget would need an additional step, since the target kernel address
  needs to be read from user space first.  Something like:

	if (coming from user space)
		swapgs
	mov %gs:<percpu_offset>, %reg1
	mov (%reg1), %reg2
	// dependent load or store based on the value of %reg2
	// for example: mov %(reg2), %reg3

  It's difficult to audit for this gadget in all the handlers, so while
  there are no known instances of it, it's entirely possible that it
  exists somewhere (or could be introduced in the future).  Without
  tooling to analyze all such code paths, consider it vulnerable.

  Effects of SMAP on the !FSGSBASE case:

  - If SMAP is enabled, and the CPU reports RDCL_NO (i.e., not
    susceptible to Meltdown), the kernel is prevented from speculatively
    reading user space memory, even L1 cached values.  This effectively
    disables the !FSGSBASE attack vector.

  - If SMAP is enabled, but the CPU *is* susceptible to Meltdown, SMAP
    still prevents the kernel from speculatively reading user space
    memory.  But it does *not* prevent the kernel from reading the
    user value from L1, if it has already been cached.  This is probably
    only a small hurdle for an attacker to overcome.

Thanks to Dave Hansen for contributing the speculative_smap() function.

Thanks to Andrew Cooper for providing the inside scoop on whether swapgs
is serializing on AMD.

[ tglx: Fixed the USER fence decision and polished the comment as suggested
  	by Dave Hansen ]

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-06 19:06:58 +02:00
Jaegeuk Kim
e6f3ddbf65 Merge remote-tracking branch 'origin/upstream-f2fs-stable-linux-4.19.y' into android-4.19
* origin/upstream-f2fs-stable-linux-4.19.y:
  f2fs: use EINVAL for superblock with invalid magic
  f2fs: fix to read source block before invalidating it
  f2fs: remove redundant check from f2fs_setflags_common()
  f2fs: use generic checking function for FS_IOC_FSSETXATTR
  f2fs: use generic checking and prep function for FS_IOC_SETFLAGS
  ubifs, fscrypt: cache decrypted symlink target in ->i_link
  vfs: use READ_ONCE() to access ->i_link
  fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory
  fscrypt: cache decrypted symlink target in ->i_link
  fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext
  fscrypt: only set dentry_operations on ciphertext dentries
  fscrypt: fix race allowing rename() and link() of ciphertext dentries
  fscrypt: clean up and improve dentry revalidation
  fscrypt: use READ_ONCE() to access ->i_crypt_info
  fscrypt: remove WARN_ON_ONCE() when decryption fails
  fscrypt: drop inode argument from fscrypt_get_ctx()
  f2fs: improve print log in f2fs_sanity_check_ckpt()
  f2fs: avoid out-of-range memory access
  f2fs: fix to avoid long latency during umount
  f2fs: allow all the users to pin a file
  f2fs: support swap file w/ DIO
  f2fs: allocate blocks for pinned file
  f2fs: fix is_idle() check for discard type
  f2fs: add a rw_sem to cover quota flag changes
  f2fs: set SBI_NEED_FSCK for xattr corruption case
  f2fs: use generic EFSBADCRC/EFSCORRUPTED
  f2fs: Use DIV_ROUND_UP() instead of open-coding
  f2fs: print kernel message if filesystem is inconsistent
  f2fs: introduce f2fs_<level> macros to wrap f2fs_printk()
  f2fs: avoid get_valid_blocks() for cleanup
  f2fs: ioctl for removing a range from F2FS
  f2fs: only set project inherit bit for directory
  f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags
  f2fs: Add option to limit required GC for checkpoint=disable
  f2fs: Fix accounting for unusable blocks
  f2fs: Fix root reserved on remount
  f2fs: Lower threshold for disable_cp_again
  f2fs: fix sparse warning
  f2fs: fix f2fs_show_options to show nodiscard mount option
  f2fs: add error prints for debugging mount failure
  f2fs: fix to do sanity check on segment bitmap of LFS curseg
  f2fs: add missing sysfs entries in documentation
  f2fs: fix to avoid deadloop if data_flush is on
  f2fs: always assume that the device is idle under gc_urgent
  f2fs: add bio cache for IPU
  f2fs: allow ssr block allocation during checkpoint=disable period
  f2fs: fix to check layout on last valid checkpoint park

Change-Id: Ie910f127f574c2115e5b9a6725461ce002c267be
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
2019-07-31 21:34:30 -07:00
Greg Kroah-Hartman
71ce27c31a This is the 4.19.61 stable release
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Merge 4.19.61 into android-4.19

Changes in 4.19.61
	MIPS: ath79: fix ar933x uart parity mode
	MIPS: fix build on non-linux hosts
	arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly
	scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported
	dmaengine: imx-sdma: fix use-after-free on probe error path
	wil6210: fix potential out-of-bounds read
	ath10k: Do not send probe response template for mesh
	ath9k: Check for errors when reading SREV register
	ath6kl: add some bounds checking
	ath10k: add peer id check in ath10k_peer_find_by_id
	wil6210: fix spurious interrupts in 3-msi
	ath: DFS JP domain W56 fixed pulse type 3 RADAR detection
	regmap: debugfs: Fix memory leak in regmap_debugfs_init
	batman-adv: fix for leaked TVLV handler.
	media: dvb: usb: fix use after free in dvb_usb_device_exit
	media: spi: IR LED: add missing of table registration
	crypto: talitos - fix skcipher failure due to wrong output IV
	media: ov7740: avoid invalid framesize setting
	media: marvell-ccic: fix DMA s/g desc number calculation
	media: vpss: fix a potential NULL pointer dereference
	media: media_device_enum_links32: clean a reserved field
	net: stmmac: dwmac1000: Clear unused address entries
	net: stmmac: dwmac4/5: Clear unused address entries
	qed: Set the doorbell address correctly
	signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
	af_key: fix leaks in key_pol_get_resp and dump_sp.
	xfrm: Fix xfrm sel prefix length validation
	fscrypt: clean up some BUG_ON()s in block encryption/decryption
	perf annotate TUI browser: Do not use member from variable within its own initialization
	media: mc-device.c: don't memset __user pointer contents
	media: saa7164: fix remove_proc_entry warning
	media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails.
	net: phy: Check against net_device being NULL
	crypto: talitos - properly handle split ICV.
	crypto: talitos - Align SEC1 accesses to 32 bits boundaries.
	tua6100: Avoid build warnings.
	batman-adv: Fix duplicated OGMs on NETDEV_UP
	locking/lockdep: Fix merging of hlocks with non-zero references
	media: wl128x: Fix some error handling in fm_v4l2_init_video_device()
	net: hns3: set ops to null when unregister ad_dev
	cpupower : frequency-set -r option misses the last cpu in related cpu list
	arm64: mm: make CONFIG_ZONE_DMA32 configurable
	perf jvmti: Address gcc string overflow warning for strncpy()
	net: stmmac: dwmac4: fix flow control issue
	net: stmmac: modify default value of tx-frames
	crypto: inside-secure - do not rely on the hardware last bit for result descriptors
	net: fec: Do not use netdev messages too early
	net: axienet: Fix race condition causing TX hang
	s390/qdio: handle PENDING state for QEBSM devices
	RAS/CEC: Fix pfn insertion
	net: sfp: add mutex to prevent concurrent state checks
	ipset: Fix memory accounting for hash types on resize
	perf cs-etm: Properly set the value of 'old' and 'head' in snapshot mode
	perf test 6: Fix missing kvm module load for s390
	perf report: Fix OOM error in TUI mode on s390
	irqchip/meson-gpio: Add support for Meson-G12A SoC
	media: uvcvideo: Fix access to uninitialized fields on probe error
	media: fdp1: Support M3N and E3 platforms
	iommu: Fix a leak in iommu_insert_resv_region
	gpio: omap: fix lack of irqstatus_raw0 for OMAP4
	gpio: omap: ensure irq is enabled before wakeup
	regmap: fix bulk writes on paged registers
	bpf: silence warning messages in core
	media: s5p-mfc: fix reading min scratch buffer size on MFC v6/v7
	selinux: fix empty write to keycreate file
	x86/cpu: Add Ice Lake NNPI to Intel family
	ASoC: meson: axg-tdm: fix sample clock inversion
	rcu: Force inlining of rcu_read_lock()
	x86/cpufeatures: Add FDP_EXCPTN_ONLY and ZERO_FCS_FDS
	qed: iWARP - Fix tc for MPA ll2 connection
	net: hns3: fix for skb leak when doing selftest
	block: null_blk: fix race condition for null_del_dev
	blkcg, writeback: dead memcgs shouldn't contribute to writeback ownership arbitration
	xfrm: fix sa selector validation
	sched/core: Add __sched tag for io_schedule()
	sched/fair: Fix "runnable_avg_yN_inv" not used warnings
	perf/x86/intel/uncore: Handle invalid event coding for free-running counter
	x86/atomic: Fix smp_mb__{before,after}_atomic()
	perf evsel: Make perf_evsel__name() accept a NULL argument
	vhost_net: disable zerocopy by default
	ipoib: correcly show a VF hardware address
	x86/cacheinfo: Fix a -Wtype-limits warning
	blk-iolatency: only account submitted bios
	ACPICA: Clear status of GPEs on first direct enable
	EDAC/sysfs: Fix memory leak when creating a csrow object
	nvme: fix possible io failures when removing multipathed ns
	nvme-pci: properly report state change failure in nvme_reset_work
	nvme-pci: set the errno on ctrl state change error
	lightnvm: pblk: fix freeing of merged pages
	arm64: Do not enable IRQs for ct_user_exit
	ipsec: select crypto ciphers for xfrm_algo
	ipvs: defer hook registration to avoid leaks
	media: s5p-mfc: Make additional clocks optional
	media: i2c: fix warning same module names
	ntp: Limit TAI-UTC offset
	timer_list: Guard procfs specific code
	acpi/arm64: ignore 5.1 FADTs that are reported as 5.0
	media: coda: fix mpeg2 sequence number handling
	media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP
	media: coda: increment sequence offset for the last returned frame
	media: vimc: cap: check v4l2_fill_pixfmt return value
	media: hdpvr: fix locking and a missing msleep
	net: stmmac: sun8i: force select external PHY when no internal one
	rtlwifi: rtl8192cu: fix error handle when usb probe failed
	mt7601u: do not schedule rx_tasklet when the device has been disconnected
	x86/build: Add 'set -e' to mkcapflags.sh to delete broken capflags.c
	mt7601u: fix possible memory leak when the device is disconnected
	ipvs: fix tinfo memory leak in start_sync_thread
	ath10k: add missing error handling
	ath10k: fix PCIE device wake up failed
	perf tools: Increase MAX_NR_CPUS and MAX_CACHES
	ASoC: Intel: hdac_hdmi: Set ops to NULL on remove
	libata: don't request sense data on !ZAC ATA devices
	clocksource/drivers/exynos_mct: Increase priority over ARM arch timer
	xsk: Properly terminate assignment in xskq_produce_flush_desc
	rslib: Fix decoding of shortened codes
	rslib: Fix handling of of caller provided syndrome
	ixgbe: Check DDM existence in transceiver before access
	crypto: serpent - mark __serpent_setkey_sbox noinline
	crypto: asymmetric_keys - select CRYPTO_HASH where needed
	wil6210: drop old event after wmi_call timeout
	EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec
	bcache: check CACHE_SET_IO_DISABLE in allocator code
	bcache: check CACHE_SET_IO_DISABLE bit in bch_journal()
	bcache: acquire bch_register_lock later in cached_dev_free()
	bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush()
	bcache: fix potential deadlock in cached_def_free()
	net: hns3: fix a -Wformat-nonliteral compile warning
	net: hns3: add some error checking in hclge_tm module
	ath10k: destroy sdio workqueue while remove sdio module
	net: mvpp2: prs: Don't override the sign bit in SRAM parser shift
	igb: clear out skb->tstamp after reading the txtime
	iwlwifi: mvm: Drop large non sta frames
	bpf: fix uapi bpf_prog_info fields alignment
	perf stat: Make metric event lookup more robust
	perf stat: Fix group lookup for metric group
	bnx2x: Prevent ptp_task to be rescheduled indefinitely
	net: usb: asix: init MAC address buffers
	rxrpc: Fix oops in tracepoint
	bpf, libbpf, smatch: Fix potential NULL pointer dereference
	selftests: bpf: fix inlines in test_lwt_seg6local
	bonding: validate ip header before check IPPROTO_IGMP
	gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants
	tools: bpftool: Fix json dump crash on powerpc
	Bluetooth: hci_bcsp: Fix memory leak in rx_skb
	Bluetooth: Add new 13d3:3491 QCA_ROME device
	Bluetooth: Add new 13d3:3501 QCA_ROME device
	Bluetooth: 6lowpan: search for destination address in all peers
	perf tests: Fix record+probe_libc_inet_pton.sh for powerpc64
	Bluetooth: Check state in l2cap_disconnect_rsp
	gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable()
	Bluetooth: validate BLE connection interval updates
	gtp: fix suspicious RCU usage
	gtp: fix Illegal context switch in RCU read-side critical section.
	gtp: fix use-after-free in gtp_encap_destroy()
	gtp: fix use-after-free in gtp_newlink()
	net: mvmdio: defer probe of orion-mdio if a clock is not ready
	iavf: fix dereference of null rx_buffer pointer
	floppy: fix div-by-zero in setup_format_params
	floppy: fix out-of-bounds read in next_valid_format
	floppy: fix invalid pointer dereference in drive_name
	floppy: fix out-of-bounds read in copy_buffer
	xen: let alloc_xenballooned_pages() fail if not enough memory free
	scsi: NCR5380: Reduce goto statements in NCR5380_select()
	scsi: NCR5380: Always re-enable reselection interrupt
	Revert "scsi: ncr5380: Increase register polling limit"
	scsi: core: Fix race on creating sense cache
	scsi: megaraid_sas: Fix calculation of target ID
	scsi: mac_scsi: Increase PIO/PDMA transfer length threshold
	scsi: mac_scsi: Fix pseudo DMA implementation, take 2
	crypto: ghash - fix unaligned memory access in ghash_setkey()
	crypto: ccp - Validate the the error value used to index error messages
	crypto: arm64/sha1-ce - correct digest for empty data in finup
	crypto: arm64/sha2-ce - correct digest for empty data in finup
	crypto: chacha20poly1305 - fix atomic sleep when using async algorithm
	crypto: crypto4xx - fix AES CTR blocksize value
	crypto: crypto4xx - fix blocksize for cfb and ofb
	crypto: crypto4xx - block ciphers should only accept complete blocks
	crypto: ccp - memset structure fields to zero before reuse
	crypto: ccp/gcm - use const time tag comparison.
	crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe
	Revert "bcache: set CACHE_SET_IO_DISABLE in bch_cached_dev_error()"
	bcache: Revert "bcache: fix high CPU occupancy during journal"
	bcache: Revert "bcache: free heap cache_set->flush_btree in bch_journal_free"
	bcache: ignore read-ahead request failure on backing device
	bcache: fix mistaken sysfs entry for io_error counter
	bcache: destroy dc->writeback_write_wq if failed to create dc->writeback_thread
	Input: gtco - bounds check collection indent level
	Input: alps - don't handle ALPS cs19 trackpoint-only device
	Input: synaptics - whitelist Lenovo T580 SMBus intertouch
	Input: alps - fix a mismatch between a condition check and its comment
	regulator: s2mps11: Fix buck7 and buck8 wrong voltages
	arm64: tegra: Update Jetson TX1 GPU regulator timings
	iwlwifi: pcie: don't service an interrupt that was masked
	iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X
	iwlwifi: don't WARN when calling iwl_get_shared_mem_conf with RF-Kill
	iwlwifi: fix RF-Kill interrupt while FW load for gen2 devices
	NFSv4: Handle the special Linux file open access mode
	pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error
	pNFS: Fix a typo in pnfs_update_layout
	pnfs: Fix a problem where we gratuitously start doing I/O through the MDS
	lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
	ASoC: dapm: Adapt for debugfs API change
	raid5-cache: Need to do start() part job after adding journal device
	ALSA: seq: Break too long mutex context in the write loop
	ALSA: hda/realtek - Fixed Headphone Mic can't record on Dell platform
	ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine
	media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom()
	media: coda: Remove unbalanced and unneeded mutex unlock
	media: videobuf2-core: Prevent size alignment wrapping buffer size to 0
	media: videobuf2-dma-sg: Prevent size from overflowing
	KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
	arm64: tegra: Fix AGIC register range
	fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.
	kconfig: fix missing choice values in auto.conf
	drm/nouveau/i2c: Enable i2c pads & busses during preinit
	padata: use smp_mb in padata_reorder to avoid orphaned padata jobs
	dm zoned: fix zone state management race
	xen/events: fix binding user event channels to cpus
	9p/xen: Add cleanup path in p9_trans_xen_init
	9p/virtio: Add cleanup path in p9_virtio_init
	x86/boot: Fix memory leak in default_get_smp_config()
	perf/x86/intel: Fix spurious NMI on fixed counter
	perf/x86/amd/uncore: Do not set 'ThreadMask' and 'SliceMask' for non-L3 PMCs
	perf/x86/amd/uncore: Set the thread mask for F17h L3 PMCs
	drm/edid: parse CEA blocks embedded in DisplayID
	intel_th: pci: Add Ice Lake NNPI support
	PCI: hv: Fix a use-after-free bug in hv_eject_device_work()
	PCI: Do not poll for PME if the device is in D3cold
	PCI: qcom: Ensure that PERST is asserted for at least 100 ms
	Btrfs: fix data loss after inode eviction, renaming it, and fsync it
	Btrfs: fix fsync not persisting dentry deletions due to inode evictions
	Btrfs: add missing inode version, ctime and mtime updates when punching hole
	IB/mlx5: Report correctly tag matching rendezvous capability
	HID: wacom: generic: only switch the mode on devices with LEDs
	HID: wacom: generic: Correct pad syncing
	HID: wacom: correct touch resolution x/y typo
	libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
	coda: pass the host file in vma->vm_file on mmap
	include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures
	xfs: fix pagecache truncation prior to reflink
	xfs: flush removing page cache in xfs_reflink_remap_prep
	xfs: don't overflow xattr listent buffer
	xfs: rename m_inotbt_nores to m_finobt_nores
	xfs: don't ever put nlink > 0 inodes on the unlinked list
	xfs: reserve blocks for ifree transaction during log recovery
	xfs: fix reporting supported extra file attributes for statx()
	xfs: serialize unaligned dio writes against all other dio writes
	xfs: abort unaligned nowait directio early
	gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM
	crypto: caam - limit output IV to CBC to work around CTR mode DMA issue
	parisc: Ensure userspace privilege for ptraced processes in regset functions
	parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1
	powerpc/32s: fix suspend/resume when IBATs 4-7 are used
	powerpc/watchpoint: Restore NV GPRs while returning from exception
	powerpc/powernv/npu: Fix reference leak
	powerpc/pseries: Fix oops in hotplug memory notifier
	mmc: sdhci-msm: fix mutex while in spinlock
	eCryptfs: fix a couple type promotion bugs
	mtd: rawnand: mtk: Correct low level time calculation of r/w cycle
	mtd: spinand: read returns badly if the last page has bitflips
	intel_th: msu: Fix single mode with disabled IOMMU
	Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
	usb: Handle USB3 remote wakeup for LPM enabled devices correctly
	blk-throttle: fix zero wait time for iops throttled group
	blk-iolatency: clear use_delay when io.latency is set to zero
	blkcg: update blkcg_print_stat() to handle larger outputs
	net: mvmdio: allow up to four clocks to be specified for orion-mdio
	dt-bindings: allow up to four clocks for orion-mdio
	dm bufio: fix deadlock with loop device
	Linux 4.19.61

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2f565111b1c16f369fa86e0481527fcc6357fe1b
2019-07-26 10:31:53 +02:00
Josua Mayer
404f59e265 dt-bindings: allow up to four clocks for orion-mdio
commit 80785f5a22 upstream.

Armada 8040 needs four clocks to be enabled for MDIO accesses to work.
Update the binding to allow the extra clock to be specified.

Cc: stable@vger.kernel.org
Fixes: 6d6a331f44 ("dt-bindings: allow up to three clocks for orion-mdio")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-26 09:14:30 +02:00
Peter Zijlstra
9e0bcb59b6 x86/atomic: Fix smp_mb__{before,after}_atomic()
[ Upstream commit 69d927bba3 ]

Recent probing at the Linux Kernel Memory Model uncovered a
'surprise'. Strongly ordered architectures where the atomic RmW
primitive implies full memory ordering and
smp_mb__{before,after}_atomic() are a simple barrier() (such as x86)
fail for:

	*x = 1;
	atomic_inc(u);
	smp_mb__after_atomic();
	r0 = *y;

Because, while the atomic_inc() implies memory order, it
(surprisingly) does not provide a compiler barrier. This then allows
the compiler to re-order like so:

	atomic_inc(u);
	*x = 1;
	smp_mb__after_atomic();
	r0 = *y;

Which the CPU is then allowed to re-order (under TSO rules) like:

	atomic_inc(u);
	r0 = *y;
	*x = 1;

And this very much was not intended. Therefore strengthen the atomic
RmW ops to include a compiler barrier.

NOTE: atomic_{or,and,xor} and the bitops already had the compiler
barrier.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-26 09:14:08 +02:00
Qian Cai
7fc96cd2b0 sched/fair: Fix "runnable_avg_yN_inv" not used warnings
[ Upstream commit 509466b7d4 ]

runnable_avg_yN_inv[] is only used in kernel/sched/pelt.c but was
included in several other places because they need other macros all
came from kernel/sched/sched-pelt.h which was generated by
Documentation/scheduler/sched-pelt. As the result, it causes compilation
a lot of warnings,

  kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
  kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
  kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
  ...

Silence it by appending the __maybe_unused attribute for it, so all
generated variables and macros can still be kept in the same file.

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1559596304-31581-1-git-send-email-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-26 09:14:08 +02:00
Greg Kroah-Hartman
0f653d9aa3 This is the 4.19.59 stable release
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Merge 4.19.59 into android-4.19

Changes in 4.19.59
	crypto: talitos - rename alternative AEAD algos.
	soc: brcmstb: Fix error path for unsupported CPUs
	soc: bcm: brcmstb: biuctrl: Register writes require a barrier
	Input: elantech - enable middle button support on 2 ThinkPads
	samples, bpf: fix to change the buffer size for read()
	samples, bpf: suppress compiler warning
	mac80211: fix rate reporting inside cfg80211_calculate_bitrate_he()
	bpf: sockmap, fix use after free from sleep in psock backlog workqueue
	soundwire: stream: fix out of boundary access on port properties
	staging:iio:ad7150: fix threshold mode config bit
	mac80211: mesh: fix RCU warning
	mac80211: free peer keys before vif down in mesh
	mwifiex: Fix possible buffer overflows at parsing bss descriptor
	iwlwifi: Fix double-free problems in iwl_req_fw_callback()
	mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies()
	soundwire: intel: set dai min and max channels correctly
	dt-bindings: can: mcp251x: add mcp25625 support
	can: mcp251x: add support for mcp25625
	can: m_can: implement errata "Needless activation of MRAF irq"
	can: af_can: Fix error path of can_init()
	net: phy: rename Asix Electronics PHY driver
	ibmvnic: Do not close unopened driver during reset
	ibmvnic: Refresh device multicast list after reset
	ibmvnic: Fix unchecked return codes of memory allocations
	ARM: dts: am335x phytec boards: Fix cd-gpios active level
	s390/boot: disable address-of-packed-member warning
	drm/vmwgfx: Honor the sg list segment size limitation
	drm/vmwgfx: fix a warning due to missing dma_parms
	riscv: Fix udelay in RV32.
	Input: imx_keypad - make sure keyboard can always wake up system
	KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
	mlxsw: spectrum: Disallow prio-tagged packets when PVID is removed
	ARM: davinci: da850-evm: call regulator_has_full_constraints()
	ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
	mac80211: only warn once on chanctx_conf being NULL
	mac80211: do not start any work during reconfigure flow
	bpf, devmap: Fix premature entry free on destroying map
	bpf, devmap: Add missing bulk queue free
	bpf, devmap: Add missing RCU read lock on flush
	bpf, x64: fix stack layout of JITed bpf code
	qmi_wwan: add support for QMAP padding in the RX path
	qmi_wwan: avoid RCU stalls on device disconnect when in QMAP mode
	qmi_wwan: extend permitted QMAP mux_id value range
	mmc: core: complete HS400 before checking status
	md: fix for divide error in status_resync
	bnx2x: Check if transceiver implements DDM before access
	drm: return -EFAULT if copy_to_user() fails
	ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
	net: lio_core: fix potential sign-extension overflow on large shift
	scsi: qedi: Check targetname while finding boot target information
	quota: fix a problem about transfer quota
	net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()
	NFS4: Only set creation opendata if O_CREAT
	net :sunrpc :clnt :Fix xps refcount imbalance on the error path
	fscrypt: don't set policy for a dead directory
	udf: Fix incorrect final NOT_ALLOCATED (hole) extent length
	media: stv0297: fix frequency range limit
	ALSA: usb-audio: Fix parse of UAC2 Extension Units
	ALSA: hda/realtek - Headphone Mic can't record after S3
	block, bfq: NULL out the bic when it's no longer valid
	perf pmu: Fix uncore PMU alias list for ARM64
	x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()
	x86/tls: Fix possible spectre-v1 in do_get_thread_area()
	Documentation: Add section about CPU vulnerabilities for Spectre
	Documentation/admin: Remove the vsyscall=native documentation
	mwifiex: Abort at too short BSS descriptor element
	mwifiex: Don't abort on small, spec-compliant vendor IEs
	USB: serial: ftdi_sio: add ID for isodebug v1
	USB: serial: option: add support for GosunCn ME3630 RNDIS mode
	Revert "serial: 8250: Don't service RX FIFO if interrupts are disabled"
	p54usb: Fix race between disconnect and firmware loading
	usb: gadget: ether: Fix race between gether_disconnect and rx_submit
	usb: dwc2: use a longer AHB idle timeout in dwc2_core_reset()
	usb: renesas_usbhs: add a workaround for a race condition of workqueue
	drivers/usb/typec/tps6598x.c: fix portinfo width
	drivers/usb/typec/tps6598x.c: fix 4CC cmd write
	staging: comedi: dt282x: fix a null pointer deref on interrupt
	staging: comedi: amplc_pci230: fix null pointer deref on interrupt
	HID: Add another Primax PIXART OEM mouse quirk
	lkdtm: support llvm-objcopy
	binder: fix memory leak in error path
	carl9170: fix misuse of device driver API
	VMCI: Fix integer overflow in VMCI handle arrays
	MIPS: Remove superfluous check for __linux__
	staging: fsl-dpaa2/ethsw: fix memory leak of switchdev_work
	staging: bcm2835-camera: Replace spinlock protecting context_map with mutex
	staging: bcm2835-camera: Ensure all buffers are returned on disable
	staging: bcm2835-camera: Remove check of the number of buffers supplied
	staging: bcm2835-camera: Handle empty EOS buffers whilst streaming
	staging: rtl8712: reduce stack usage, again
	Linux 4.19.59

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I650890ad9d984de0fc729677bd29506cd21338be
2019-07-14 08:44:38 +02:00
Andy Lutomirski
a2a24b57c2 Documentation/admin: Remove the vsyscall=native documentation
commit d974ffcfb7 upstream.

The vsyscall=native feature is gone -- remove the docs.

Fixes: 076ca272a1 ("x86/vsyscall/64: Drop "native" vsyscalls")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: stable@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Kernel Hardening <kernel-hardening@lists.openwall.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d77c7105eb4c57c1a95a95b6a5b8ba194a18e764.1561610354.git.luto@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-14 08:11:18 +02:00
Tim Chen
8a815007f5 Documentation: Add section about CPU vulnerabilities for Spectre
commit 6e88559470 upstream.

Add documentation for Spectre vulnerability and the mitigation mechanisms:

- Explain the problem and risks
- Document the mitigation mechanisms
- Document the command line controls
- Document the sysfs files

Co-developed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Co-developed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-14 08:11:17 +02:00
Reinhard Speyerer
2da80536f6 qmi_wwan: extend permitted QMAP mux_id value range
[ Upstream commit 36815b416f ]

Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.

Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-14 08:11:13 +02:00
Sean Nyekjaer
33672c74b4 dt-bindings: can: mcp251x: add mcp25625 support
[ Upstream commit 0df82dcd55 ]

Fully compatible with mcp2515, the mcp25625 have integrated transceiver.

This patch add the mcp25625 to the device tree bindings documentation.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-14 08:11:07 +02:00
Jaegeuk Kim
6d8762bddf f2fs: allocate blocks for pinned file
This patch allows fallocate to allocate physical blocks for pinned file.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-07-11 18:47:34 -07:00
Greg Kroah-Hartman
5b2dde5e0b This is the 4.19.57 stable release
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Merge 4.19.57 into android-4.19

Changes in 4.19.57
	perf ui helpline: Use strlcpy() as a shorter form of strncpy() + explicit set nul
	perf help: Remove needless use of strncpy()
	perf header: Fix unchecked usage of strncpy()
	arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
	Revert "x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP"
	IB/hfi1: Close PSM sdma_progress sleep window
	9p/xen: fix check for xenbus_read error in front_probe
	9p: Use a slab for allocating requests
	9p: embed fcall in req to round down buffer allocs
	9p: add a per-client fcall kmem_cache
	9p: rename p9_free_req() function
	9p: Add refcount to p9_req_t
	9p/rdma: do not disconnect on down_interruptible EAGAIN
	9p: Rename req to rreq in trans_fd
	9p: acl: fix uninitialized iattr access
	9p/rdma: remove useless check in cm_event_handler
	9p: p9dirent_read: check network-provided name length
	9p: potential NULL dereference
	9p/trans_fd: abort p9_read_work if req status changed
	9p/trans_fd: put worker reqs on destroy
	net/9p: include trans_common.h to fix missing prototype warning.
	qmi_wwan: Fix out-of-bounds read
	Revert "usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup"
	usb: dwc3: gadget: combine unaligned and zero flags
	usb: dwc3: gadget: track number of TRBs per request
	usb: dwc3: gadget: use num_trbs when skipping TRBs on ->dequeue()
	usb: dwc3: gadget: extract dwc3_gadget_ep_skip_trbs()
	usb: dwc3: gadget: introduce cancelled_list
	usb: dwc3: gadget: move requests to cancelled_list
	usb: dwc3: gadget: remove wait_end_transfer
	usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup
	fs/proc/array.c: allow reporting eip/esp for all coredumping threads
	mm/mempolicy.c: fix an incorrect rebind node in mpol_rebind_nodemask
	fs/binfmt_flat.c: make load_flat_shared_library() work
	clk: socfpga: stratix10: fix divider entry for the emac clocks
	mm: soft-offline: return -EBUSY if set_hwpoison_free_buddy_page() fails
	mm: hugetlb: soft-offline: dissolve_free_huge_page() return zero on !PageHuge
	mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
	dm log writes: make sure super sector log updates are written in order
	scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck()
	x86/speculation: Allow guests to use SSBD even if host does not
	x86/microcode: Fix the microcode load on CPU hotplug for real
	x86/resctrl: Prevent possible overrun during bitmap operations
	KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
	NFS/flexfiles: Use the correct TCP timeout for flexfiles I/O
	cpu/speculation: Warn on unsupported mitigations= parameter
	SUNRPC: Clean up initialisation of the struct rpc_rqst
	irqchip/mips-gic: Use the correct local interrupt map registers
	eeprom: at24: fix unexpected timeout under high load
	af_packet: Block execution of tasks waiting for transmit to complete in AF_PACKET
	bonding: Always enable vlan tx offload
	ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
	net/packet: fix memory leak in packet_set_ring()
	net: remove duplicate fetch in sock_getsockopt
	net: stmmac: fixed new system time seconds value calculation
	net: stmmac: set IC bit when transmitting frames with HW timestamp
	sctp: change to hold sk after auth shkey is created successfully
	team: Always enable vlan tx offload
	tipc: change to use register_pernet_device
	tipc: check msg->req data len in tipc_nl_compat_bearer_disable
	tun: wake up waitqueues after IFF_UP is set
	bpf: simplify definition of BPF_FIB_LOOKUP related flags
	bpf: lpm_trie: check left child of last leftmost node for NULL
	bpf: fix nested bpf tracepoints with per-cpu data
	bpf: fix unconnected udp hooks
	bpf: udp: Avoid calling reuseport's bpf_prog from udp_gro
	bpf: udp: ipv6: Avoid running reuseport's bpf_prog from __udp6_lib_err
	arm64: futex: Avoid copying out uninitialised stack in failed cmpxchg()
	bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd
	futex: Update comments and docs about return values of arch futex code
	RDMA: Directly cast the sockaddr union to sockaddr
	tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb
	usb: dwc3: Reset num_trbs after skipping
	arm64: insn: Fix ldadd instruction encoding
	Linux 4.19.57

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-07-03 13:19:45 +02:00
Will Deacon
a319c8ff4f futex: Update comments and docs about return values of arch futex code
commit 4275035197 upstream.

The architecture implementations of 'arch_futex_atomic_op_inuser()' and
'futex_atomic_cmpxchg_inatomic()' are permitted to return only -EFAULT,
-EAGAIN or -ENOSYS in the case of failure.

Update the comments in the asm-generic/ implementation and also a stray
reference in the robust futex documentation.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-03 13:14:49 +02:00
Greg Kroah-Hartman
d9bd2653b0 This is the 4.19.52 stable release
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Merge 4.19.52 into android-4.19

Changes in 4.19.52
	tcp: limit payload size of sacked skbs
	tcp: tcp_fragment() should apply sane memory limits
	tcp: add tcp_min_snd_mss sysctl
	tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
	Linux 4.19.52

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-06-17 20:02:56 +02:00
Eric Dumazet
7f9f8a37e5 tcp: add tcp_min_snd_mss sysctl
commit 5f3e2bf008 upstream.

Some TCP peers announce a very small MSS option in their SYN and/or
SYN/ACK messages.

This forces the stack to send packets with a very high network/cpu
overhead.

Linux has enforced a minimal value of 48. Since this value includes
the size of TCP options, and that the options can consume up to 40
bytes, this means that each segment can include only 8 bytes of payload.

In some cases, it can be useful to increase the minimal value
to a saner value.

We still let the default to 48 (TCP_MIN_SND_MSS), for compatibility
reasons.

Note that TCP_MAXSEG socket option enforces a minimal value
of (TCP_MIN_MSS). David Miller increased this minimal value
in commit c39508d6f1 ("tcp: Make TCP_MAXSEG minimum more correct.")
from 64 to 88.

We might in the future merge TCP_MIN_SND_MSS and TCP_MIN_MSS.

CVE-2019-11479 -- tcp mss hardcoded to 48

Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-17 19:51:56 +02:00
Daniel Rosenberg
77d88aa991 f2fs: Add option to limit required GC for checkpoint=disable
This extends the checkpoint option to allow checkpoint=disable:%u[%]
This allows you to specify what how much of the disk you are willing
to lose access to while mounting with checkpoint=disable. If the amount
lost would be higher, the mount will return -EAGAIN. This can be given
as a percent of total space, or in blocks.

Currently, we need to run garbage collection until the amount of holes
is smaller than the OVP space. With the new option, f2fs can mark
space as unusable up front instead of requiring garbage collection until
the number of holes is small enough.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-06-13 20:18:09 -07:00
Jaegeuk Kim
6e30778fe3 f2fs: add missing sysfs entries in documentation
This patch cleans up documentation to cover missing sysfs entries.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-06-13 20:18:02 -07:00
Greg Kroah-Hartman
3f534fa2fc This is the 4.19.49 stable release
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Merge 4.19.49 into android-4.19

Changes in 4.19.49
	sparc64: Fix regression in non-hypervisor TLB flush xcall
	include/linux/bitops.h: sanitize rotate primitives
	xhci: update bounce buffer with correct sg num
	xhci: Use %zu for printing size_t type
	xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
	usb: xhci: avoid null pointer deref when bos field is NULL
	usbip: usbip_host: fix BUG: sleeping function called from invalid context
	usbip: usbip_host: fix stub_dev lock context imbalance regression
	USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
	USB: sisusbvga: fix oops in error path of sisusb_probe
	USB: Add LPM quirk for Surface Dock GigE adapter
	USB: rio500: refuse more than one device at a time
	USB: rio500: fix memory leak in close after disconnect
	media: usb: siano: Fix general protection fault in smsusb
	media: usb: siano: Fix false-positive "uninitialized variable" warning
	media: smsusb: better handle optional alignment
	brcmfmac: fix NULL pointer derefence during USB disconnect
	scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
	scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
	tracing: Avoid memory leak in predicate_parse()
	Btrfs: fix wrong ctime and mtime of a directory after log replay
	Btrfs: fix race updating log root item during fsync
	Btrfs: fix fsync not persisting changed attributes of a directory
	Btrfs: incremental send, fix file corruption when no-holes feature is enabled
	iio: dac: ds4422/ds4424 fix chip verification
	iio: adc: ti-ads8688: fix timestamp is not updated in buffer
	s390/crypto: fix gcm-aes-s390 selftest failures
	s390/crypto: fix possible sleep during spinlock aquired
	KVM: PPC: Book3S HV: XIVE: Do not clear IRQ data of passthrough interrupts
	powerpc/perf: Fix MMCRA corruption by bhrb_filter
	ALSA: line6: Assure canceling delayed work at disconnection
	ALSA: hda/realtek - Set default power save node to 0
	ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops
	KVM: s390: Do not report unusabled IDs via KVM_CAP_MAX_VCPU_ID
	drm/nouveau/i2c: Disable i2c bus access after ->fini()
	i2c: mlxcpld: Fix wrong initialization order in probe
	i2c: synquacer: fix synquacer_i2c_doxfer() return value
	tty: serial: msm_serial: Fix XON/XOFF
	tty: max310x: Fix external crystal register setup
	memcg: make it work on sparse non-0-node systems
	kernel/signal.c: trace_signal_deliver when signal_group_exit
	arm64: Fix the arm64_personality() syscall wrapper redirection
	docs: Fix conf.py for Sphinx 2.0
	doc: Cope with the deprecation of AutoReporter
	doc: Cope with Sphinx logging deprecations
	ima: show rules with IMA_INMASK correctly
	evm: check hash algorithm passed to init_desc()
	vt/fbcon: deinitialize resources in visual_init() after failed memory allocation
	serial: sh-sci: disable DMA for uart_console
	staging: vc04_services: prevent integer overflow in create_pagelist()
	staging: wlan-ng: fix adapter initialization failure
	cifs: fix memory leak of pneg_inbuf on -EOPNOTSUPP ioctl case
	CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
	Revert "lockd: Show pid of lockd for remote locks"
	gcc-plugins: Fix build failures under Darwin host
	drm/tegra: gem: Fix CPU-cache maintenance for BO's allocated using get_pages()
	drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
	drm/sun4i: Fix sun8i HDMI PHY clock initialization
	drm/sun4i: Fix sun8i HDMI PHY configuration for > 148.5 MHz
	drm/rockchip: shutdown drm subsystem on shutdown
	drm/lease: Make sure implicit planes are leased
	Compiler Attributes: add support for __copy (gcc >= 9)
	include/linux/module.h: copy __init/__exit attrs to init/cleanup_module
	Revert "x86/build: Move _etext to actual end of .text"
	Revert "binder: fix handling of misaligned binder object"
	binder: fix race between munmap() and direct reclaim
	x86/ftrace: Do not call function graph from dynamic trampolines
	x86/ftrace: Set trampoline pages as executable
	x86/kprobes: Set instruction page as executable
	scsi: lpfc: Fix backport of faf5a744f4 ("scsi: lpfc: avoid uninitialized variable warning")
	of: overlay: validate overlay properties #address-cells and #size-cells
	of: overlay: set node fields from properties when add new overlay node
	media: uvcvideo: Fix uvc_alloc_entity() allocation alignment
	Linux 4.19.49

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-06-09 09:27:18 +02:00
Jonathan Corbet
21158982f6 doc: Cope with Sphinx logging deprecations
commit 096ea522e8 upstream.

Recent versions of sphinx will emit messages like:

  Documentation/sphinx/kerneldoc.py:103:
     RemovedInSphinx20Warning: app.warning() is now deprecated.
     Use sphinx.util.logging instead.

Switch to sphinx.util.logging to make this unsightly message go away.
Alas, that interface was only added in version 1.6, so we have to add a
version check to keep things working with older sphinxes.

Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-09 09:17:21 +02:00
Jonathan Corbet
c0742228bb doc: Cope with the deprecation of AutoReporter
commit 2404dad1f6 upstream.

AutoReporter is going away; recent versions of sphinx emit a warning like:

  Documentation/sphinx/kerneldoc.py:125:
      RemovedInSphinx20Warning: AutodocReporter is now deprecated.
      Use sphinx.util.docutils.switch_source_input() instead.

Make the switch.  But switch_source_input() only showed up in 1.7, so we
have to do ugly version checks to keep things working in older versions.

Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-09 09:17:20 +02:00
Jonathan Corbet
301b18edbf docs: Fix conf.py for Sphinx 2.0
commit 3bc8088464 upstream.

Our version check in Documentation/conf.py never envisioned a world where
Sphinx moved beyond 1.x.  Now that the unthinkable has happened, fix our
version check to handle higher version numbers correctly.

Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-09 09:17:20 +02:00
Greg Kroah-Hartman
cab4399ebf This is the 4.19.47 stable release
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Merge 4.19.47 into android-4.19

Changes in 4.19.47
	x86: Hide the int3_emulate_call/jmp functions from UML
	ext4: do not delete unlinked inode from orphan list on failed truncate
	ext4: wait for outstanding dio during truncate in nojournal mode
	f2fs: Fix use of number of devices
	KVM: x86: fix return value for reserved EFER
	bio: fix improper use of smp_mb__before_atomic()
	sbitmap: fix improper use of smp_mb__before_atomic()
	Revert "scsi: sd: Keep disk read-only when re-reading partition"
	crypto: vmx - CTR: always increment IV as quadword
	mmc: sdhci-iproc: cygnus: Set NO_HISPD bit to fix HS50 data hold time problem
	mmc: sdhci-iproc: Set NO_HISPD bit to fix HS50 data hold time problem
	kvm: svm/avic: fix off-by-one in checking host APIC ID
	libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead
	arm64/kernel: kaslr: reduce module randomization range to 2 GB
	arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable
	gfs2: Fix sign extension bug in gfs2_update_stats
	btrfs: don't double unlock on error in btrfs_punch_hole
	Btrfs: do not abort transaction at btrfs_update_root() after failure to COW path
	Btrfs: avoid fallback to transaction commit during fsync of files with holes
	Btrfs: fix race between ranged fsync and writeback of adjacent ranges
	btrfs: sysfs: Fix error path kobject memory leak
	btrfs: sysfs: don't leak memory when failing add fsid
	udlfb: fix some inconsistent NULL checking
	fbdev: fix divide error in fb_var_to_videomode
	NFSv4.2 fix unnecessary retry in nfs4_copy_file_range
	NFSv4.1 fix incorrect return value in copy_file_range
	bpf: add bpf_jit_limit knob to restrict unpriv allocations
	brcmfmac: assure SSID length from firmware is limited
	brcmfmac: add subtype check for event handling in data path
	arm64: errata: Add workaround for Cortex-A76 erratum #1463225
	btrfs: honor path->skip_locking in backref code
	ovl: relax WARN_ON() for overlapping layers use case
	fbdev: fix WARNING in __alloc_pages_nodemask bug
	media: cpia2: Fix use-after-free in cpia2_exit
	media: serial_ir: Fix use-after-free in serial_ir_init_module
	media: vb2: add waiting_in_dqbuf flag
	media: vivid: use vfree() instead of kfree() for dev->bitmap_cap
	ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit
	bpf: devmap: fix use-after-free Read in __dev_map_entry_free
	batman-adv: mcast: fix multicast tt/tvlv worker locking
	at76c50x-usb: Don't register led_trigger if usb_register_driver failed
	acct_on(): don't mess with freeze protection
	Revert "btrfs: Honour FITRIM range constraints during free space trim"
	gfs2: Fix lru_count going negative
	cxgb4: Fix error path in cxgb4_init_module
	NFS: make nfs_match_client killable
	IB/hfi1: Fix WQ_MEM_RECLAIM warning
	gfs2: Fix occasional glock use-after-free
	mmc: core: Verify SD bus width
	tools/bpf: fix perf build error with uClibc (seen on ARC)
	selftests/bpf: set RLIMIT_MEMLOCK properly for test_libbpf_open.c
	bpftool: exclude bash-completion/bpftool from .gitignore pattern
	dmaengine: tegra210-dma: free dma controller in remove()
	net: ena: gcc 8: fix compilation warning
	hv_netvsc: fix race that may miss tx queue wakeup
	Bluetooth: Ignore CC events not matching the last HCI command
	pinctrl: zte: fix leaked of_node references
	ASoC: Intel: kbl_da7219_max98357a: Map BTN_0 to KEY_PLAYPAUSE
	usb: dwc2: gadget: Increase descriptors count for ISOC's
	usb: dwc3: move synchronize_irq() out of the spinlock protected block
	ASoC: hdmi-codec: unlock the device on startup errors
	powerpc/perf: Return accordingly on invalid chip-id in
	powerpc/boot: Fix missing check of lseek() return value
	powerpc/perf: Fix loop exit condition in nest_imc_event_init
	ASoC: imx: fix fiq dependencies
	spi: pxa2xx: fix SCR (divisor) calculation
	brcm80211: potential NULL dereference in brcmf_cfg80211_vndr_cmds_dcmd_handler()
	ACPI / property: fix handling of data_nodes in acpi_get_next_subnode()
	drm/nouveau/bar/nv50: ensure BAR is mapped
	media: stm32-dcmi: return appropriate error codes during probe
	ARM: vdso: Remove dependency with the arch_timer driver internals
	arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
	powerpc/watchdog: Use hrtimers for per-CPU heartbeat
	sched/cpufreq: Fix kobject memleak
	scsi: qla2xxx: Fix a qla24xx_enable_msix() error path
	scsi: qla2xxx: Fix abort handling in tcm_qla2xxx_write_pending()
	scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session()
	scsi: qla2xxx: Fix hardirq-unsafe locking
	x86/modules: Avoid breaking W^X while loading modules
	Btrfs: fix data bytes_may_use underflow with fallocate due to failed quota reserve
	btrfs: fix panic during relocation after ENOSPC before writeback happens
	btrfs: Don't panic when we can't find a root key
	iwlwifi: pcie: don't crash on invalid RX interrupt
	rtc: 88pm860x: prevent use-after-free on device remove
	rtc: stm32: manage the get_irq probe defer case
	scsi: qedi: Abort ep termination if offload not scheduled
	s390/kexec_file: Fix detection of text segment in ELF loader
	sched/nohz: Run NOHZ idle load balancer on HK_FLAG_MISC CPUs
	w1: fix the resume command API
	s390: qeth: address type mismatch warning
	dmaengine: pl330: _stop: clear interrupt status
	mac80211/cfg80211: update bss channel on channel switch
	libbpf: fix samples/bpf build failure due to undefined UINT32_MAX
	slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register
	ASoC: fsl_sai: Update is_slave_mode with correct value
	mwifiex: prevent an array overflow
	rsi: Fix NULL pointer dereference in kmalloc
	net: cw1200: fix a NULL pointer dereference
	nvme: set 0 capacity if namespace block size exceeds PAGE_SIZE
	nvme-rdma: fix a NULL deref when an admin connect times out
	crypto: sun4i-ss - Fix invalid calculation of hash end
	bcache: avoid potential memleak of list of journal_replay(s) in the CACHE_SYNC branch of run_cache_set
	bcache: return error immediately in bch_journal_replay()
	bcache: fix failure in journal relplay
	bcache: add failure check to run_cache_set() for journal replay
	bcache: avoid clang -Wunintialized warning
	RDMA/cma: Consider scope_id while binding to ipv6 ll address
	vfio-ccw: Do not call flush_workqueue while holding the spinlock
	vfio-ccw: Release any channel program when releasing/removing vfio-ccw mdev
	x86/build: Move _etext to actual end of .text
	smpboot: Place the __percpu annotation correctly
	x86/mm: Remove in_nmi() warning from 64-bit implementation of vmalloc_fault()
	mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions
	Bluetooth: hci_qca: Give enough time to ROME controller to bootup.
	HID: logitech-hidpp: use RAP instead of FAP to get the protocol version
	pinctrl: pistachio: fix leaked of_node references
	pinctrl: samsung: fix leaked of_node references
	clk: rockchip: undo several noc and special clocks as critical on rk3288
	perf/arm-cci: Remove broken race mitigation
	dmaengine: at_xdmac: remove BUG_ON macro in tasklet
	media: coda: clear error return value before picture run
	media: ov6650: Move v4l2_clk_get() to ov6650_video_probe() helper
	media: au0828: stop video streaming only when last user stops
	media: ov2659: make S_FMT succeed even if requested format doesn't match
	audit: fix a memory leak bug
	media: stm32-dcmi: fix crash when subdev do not expose any formats
	media: au0828: Fix NULL pointer dereference in au0828_analog_stream_enable()
	media: pvrusb2: Prevent a buffer overflow
	iio: adc: stm32-dfsdm: fix unmet direct dependencies detected
	block: fix use-after-free on gendisk
	powerpc/numa: improve control of topology updates
	powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX
	random: fix CRNG initialization when random.trust_cpu=1
	random: add a spinlock_t to struct batched_entropy
	cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
	sched/core: Check quota and period overflow at usec to nsec conversion
	sched/rt: Check integer overflow at usec to nsec conversion
	sched/core: Handle overflow in cpu_shares_write_u64
	staging: vc04_services: handle kzalloc failure
	drm/msm: a5xx: fix possible object reference leak
	irq_work: Do not raise an IPI when queueing work on the local CPU
	thunderbolt: Take domain lock in switch sysfs attribute callbacks
	s390/qeth: handle error from qeth_update_from_chp_desc()
	USB: core: Don't unbind interfaces following device reset failure
	x86/irq/64: Limit IST stack overflow check to #DB stack
	drm: etnaviv: avoid DMA API warning when importing buffers
	phy: sun4i-usb: Make sure to disable PHY0 passby for peripheral mode
	phy: mapphone-mdm6600: add gpiolib dependency
	i40e: Able to add up to 16 MAC filters on an untrusted VF
	i40e: don't allow changes to HW VLAN stripping on active port VLANs
	ACPI/IORT: Reject platform device creation on NUMA node mapping failure
	arm64: vdso: Fix clock_getres() for CLOCK_REALTIME
	RDMA/cxgb4: Fix null pointer dereference on alloc_skb failure
	perf/x86/msr: Add Icelake support
	perf/x86/intel/rapl: Add Icelake support
	perf/x86/intel/cstate: Add Icelake support
	hwmon: (vt1211) Use request_muxed_region for Super-IO accesses
	hwmon: (smsc47m1) Use request_muxed_region for Super-IO accesses
	hwmon: (smsc47b397) Use request_muxed_region for Super-IO accesses
	hwmon: (pc87427) Use request_muxed_region for Super-IO accesses
	hwmon: (f71805f) Use request_muxed_region for Super-IO accesses
	scsi: libsas: Do discovery on empty PHY to update PHY info
	mmc: core: make pwrseq_emmc (partially) support sleepy GPIO controllers
	mmc_spi: add a status check for spi_sync_locked
	mmc: sdhci-of-esdhc: add erratum eSDHC5 support
	mmc: sdhci-of-esdhc: add erratum A-009204 support
	mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support
	drm/amdgpu: fix old fence check in amdgpu_fence_emit
	PM / core: Propagate dev->power.wakeup_path when no callbacks
	clk: rockchip: Fix video codec clocks on rk3288
	extcon: arizona: Disable mic detect if running when driver is removed
	clk: rockchip: Make rkpwm a critical clock on rk3288
	s390: zcrypt: initialize variables before_use
	x86/microcode: Fix the ancient deprecated microcode loading method
	s390/mm: silence compiler warning when compiling without CONFIG_PGSTE
	s390: cio: fix cio_irb declaration
	selftests: cgroup: fix cleanup path in test_memcg_subtree_control()
	qmi_wwan: Add quirk for Quectel dynamic config
	cpufreq: ppc_cbe: fix possible object reference leak
	cpufreq/pasemi: fix possible object reference leak
	cpufreq: pmac32: fix possible object reference leak
	cpufreq: kirkwood: fix possible object reference leak
	block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR
	x86/build: Keep local relocations with ld.lld
	drm/pl111: fix possible object reference leak
	iio: ad_sigma_delta: Properly handle SPI bus locking vs CS assertion
	iio: hmc5843: fix potential NULL pointer dereferences
	iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data
	iio: adc: ti-ads7950: Fix improper use of mlock
	selftests/bpf: ksym_search won't check symbols exists
	rtlwifi: fix a potential NULL pointer dereference
	mwifiex: Fix mem leak in mwifiex_tm_cmd
	brcmfmac: fix missing checks for kmemdup
	b43: shut up clang -Wuninitialized variable warning
	brcmfmac: convert dev_init_lock mutex to completion
	brcmfmac: fix WARNING during USB disconnect in case of unempty psq
	brcmfmac: fix race during disconnect when USB completion is in progress
	brcmfmac: fix Oops when bringing up interface during USB disconnect
	rtc: xgene: fix possible race condition
	rtlwifi: fix potential NULL pointer dereference
	scsi: ufs: Fix regulator load and icc-level configuration
	scsi: ufs: Avoid configuring regulator with undefined voltage range
	drm/panel: otm8009a: Add delay at the end of initialization
	arm64: cpu_ops: fix a leaked reference by adding missing of_node_put
	wil6210: fix return code of wmi_mgmt_tx and wmi_mgmt_tx_ext
	x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP
	x86/uaccess, signal: Fix AC=1 bloat
	x86/ia32: Fix ia32_restore_sigcontext() AC leak
	x86/uaccess: Fix up the fixup
	chardev: add additional check for minor range overlap
	RDMA/hns: Fix bad endianess of port_pd variable
	sh: sh7786: Add explicit I/O cast to sh7786_mm_sel()
	HID: core: move Usage Page concatenation to Main item
	ASoC: eukrea-tlv320: fix a leaked reference by adding missing of_node_put
	ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put
	cxgb3/l2t: Fix undefined behaviour
	HID: logitech-hidpp: change low battery level threshold from 31 to 30 percent
	spi: tegra114: reset controller on probe
	kobject: Don't trigger kobject_uevent(KOBJ_REMOVE) twice.
	media: video-mux: fix null pointer dereferences
	media: wl128x: prevent two potential buffer overflows
	media: gspca: Kill URBs on USB device disconnect
	efifb: Omit memory map check on legacy boot
	thunderbolt: property: Fix a missing check of kzalloc
	thunderbolt: Fix to check the return value of kmemdup
	timekeeping: Force upper bound for setting CLOCK_REALTIME
	scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload check
	virtio_console: initialize vtermno value for ports
	tty: ipwireless: fix missing checks for ioremap
	overflow: Fix -Wtype-limits compilation warnings
	x86/mce: Fix machine_check_poll() tests for error types
	rcutorture: Fix cleanup path for invalid torture_type strings
	x86/mce: Handle varying MCA bank counts
	rcuperf: Fix cleanup path for invalid perf_type strings
	usb: core: Add PM runtime calls to usb_hcd_platform_shutdown
	scsi: qla4xxx: avoid freeing unallocated dma memory
	scsi: lpfc: avoid uninitialized variable warning
	selinux: avoid uninitialized variable warning
	batman-adv: allow updating DAT entry timeouts on incoming ARP Replies
	dmaengine: tegra210-adma: use devm_clk_*() helpers
	hwrng: omap - Set default quality
	thunderbolt: Fix to check return value of ida_simple_get
	thunderbolt: Fix to check for kmemdup failure
	drm/amd/display: fix releasing planes when exiting odm
	thunderbolt: property: Fix a NULL pointer dereference
	e1000e: Disable runtime PM on CNP+
	tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfers
	igb: Exclude device from suspend direct complete optimization
	media: si2165: fix a missing check of return value
	media: dvbsky: Avoid leaking dvb frontend
	media: m88ds3103: serialize reset messages in m88ds3103_set_frontend
	media: staging: davinci_vpfe: disallow building with COMPILE_TEST
	drm/amd/display: Fix Divide by 0 in memory calculations
	drm/amd/display: Set stream->mode_changed when connectors change
	scsi: ufs: fix a missing check of devm_reset_control_get
	media: vimc: stream: fix thread state before sleep
	media: gspca: do not resubmit URBs when streaming has stopped
	media: go7007: avoid clang frame overflow warning with KASAN
	media: vimc: zero the media_device on probe
	scsi: lpfc: Fix FDMI manufacturer attribute value
	scsi: lpfc: Fix fc4type information for FDMI
	media: saa7146: avoid high stack usage with clang
	scsi: lpfc: Fix SLI3 commands being issued on SLI4 devices
	spi : spi-topcliff-pch: Fix to handle empty DMA buffers
	drm/omap: dsi: Fix PM for display blank with paired dss_pll calls
	spi: rspi: Fix sequencer reset during initialization
	spi: imx: stop buffer overflow in RX FIFO flush
	spi: Fix zero length xfer bug
	ASoC: davinci-mcasp: Fix clang warning without CONFIG_PM
	drm/v3d: Handle errors from IRQ setup.
	drm/drv: Hold ref on parent device during drm_device lifetime
	drm: Wake up next in drm_read() chain if we are forced to putback the event
	drm/sun4i: dsi: Change the start delay calculation
	vfio-ccw: Prevent quiesce function going into an infinite loop
	drm/sun4i: dsi: Enforce boundaries on the start delay
	NFS: Fix a double unlock from nfs_match,get_client
	Linux 4.19.47

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-05-31 08:14:29 -07:00
Will Deacon
2eefb4a389 arm64: errata: Add workaround for Cortex-A76 erratum #1463225
commit 969f5ea627 upstream.

Revisions of the Cortex-A76 CPU prior to r4p0 are affected by an erratum
that can prevent interrupts from being taken when single-stepping.

This patch implements a software workaround to prevent userspace from
effectively being able to disable interrupts.

Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-31 06:46:03 -07:00
Daniel Borkmann
43caa29c99 bpf: add bpf_jit_limit knob to restrict unpriv allocations
commit ede95a63b5 upstream.

Rick reported that the BPF JIT could potentially fill the entire module
space with BPF programs from unprivileged users which would prevent later
attempts to load normal kernel modules or privileged BPF programs, for
example. If JIT was enabled but unsuccessful to generate the image, then
before commit 290af86629 ("bpf: introduce BPF_JIT_ALWAYS_ON config")
we would always fall back to the BPF interpreter. Nowadays in the case
where the CONFIG_BPF_JIT_ALWAYS_ON could be set, then the load will abort
with a failure since the BPF interpreter was compiled out.

Add a global limit and enforce it for unprivileged users such that in case
of BPF interpreter compiled out we fail once the limit has been reached
or we fall back to BPF interpreter earlier w/o using module mem if latter
was compiled in. In a next step, fair share among unprivileged users can
be resolved in particular for the case where we would fail hard once limit
is reached.

Fixes: 290af86629 ("bpf: introduce BPF_JIT_ALWAYS_ON config")
Fixes: 0a14842f5a ("net: filter: Just In Time compiler for x86-64")
Co-Developed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-31 06:46:03 -07:00
Greg Kroah-Hartman
aa07ecba6f This is the 4.19.46 stable release
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Merge 4.19.46 into android-4.19

Changes in 4.19.46
	ipv6: fix src addr routing with the exception table
	ipv6: prevent possible fib6 leaks
	net: Always descend into dsa/
	net: avoid weird emergency message
	net/mlx4_core: Change the error print to info print
	net: test nouarg before dereferencing zerocopy pointers
	net: usb: qmi_wwan: add Telit 0x1260 and 0x1261 compositions
	nfp: flower: add rcu locks when accessing netdev for tunnels
	ppp: deflate: Fix possible crash in deflate_init
	rtnetlink: always put IFLA_LINK for links with a link-netnsid
	tipc: switch order of device registration to fix a crash
	vsock/virtio: free packets during the socket release
	tipc: fix modprobe tipc failed after switch order of device registration
	vsock/virtio: Initialize core virtio vsock before registering the driver
	net/mlx5: Imply MLXFW in mlx5_core
	net/mlx5e: Fix ethtool rxfh commands when CONFIG_MLX5_EN_RXNFC is disabled
	parisc: Export running_on_qemu symbol for modules
	parisc: Skip registering LED when running in QEMU
	parisc: Use PA_ASM_LEVEL in boot code
	parisc: Rename LEVEL to PA_ASM_LEVEL to avoid name clash with DRBD code
	stm class: Fix channel free in stm output free path
	stm class: Fix channel bitmap on 32-bit systems
	brd: re-enable __GFP_HIGHMEM in brd_insert_page()
	proc: prevent changes to overridden credentials
	Revert "MD: fix lock contention for flush bios"
	md: batch flush requests.
	md: add mddev->pers to avoid potential NULL pointer dereference
	dcache: sort the freeing-without-RCU-delay mess for good.
	intel_th: msu: Fix single mode with IOMMU
	p54: drop device reference count if fails to enable device
	of: fix clang -Wunsequenced for be32_to_cpu()
	cifs: fix strcat buffer overflow and reduce raciness in smb21_set_oplock_level()
	phy: ti-pipe3: fix missing bit-wise or operator when assigning val
	media: ov6650: Fix sensor possibly not detected on probe
	media: imx: csi: Allow unknown nearest upstream entities
	media: imx: Clear fwnode link struct for each endpoint iteration
	NFS4: Fix v4.0 client state corruption when mount
	PNFS fallback to MDS if no deviceid found
	clk: hi3660: Mark clk_gate_ufs_subsys as critical
	clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider
	clk: mediatek: Disable tuner_en before change PLL rate
	clk: rockchip: fix wrong clock definitions for rk3328
	udlfb: delete the unused parameter for dlfb_handle_damage
	udlfb: fix sleeping inside spinlock
	udlfb: introduce a rendering mutex
	fuse: fix writepages on 32bit
	fuse: honor RLIMIT_FSIZE in fuse_file_fallocate
	ovl: fix missing upper fs freeze protection on copy up for ioctl
	iommu/tegra-smmu: Fix invalid ASID bits on Tegra30/114
	ceph: flush dirty inodes before proceeding with remount
	x86_64: Add gap to int3 to allow for call emulation
	x86_64: Allow breakpoints to emulate call instructions
	ftrace/x86_64: Emulate call function while updating in breakpoint handler
	tracing: Fix partial reading of trace event's id file
	memory: tegra: Fix integer overflow on tick value calculation
	perf intel-pt: Fix instructions sampling rate
	perf intel-pt: Fix improved sample timestamp
	perf intel-pt: Fix sample timestamp wrt non-taken branches
	MIPS: perf: Fix build with CONFIG_CPU_BMIPS5000 enabled
	objtool: Allow AR to be overridden with HOSTAR
	fbdev/efifb: Ignore framebuffer memmap entries that lack any memory types
	fbdev: sm712fb: fix brightness control on reboot, don't set SR30
	fbdev: sm712fb: fix VRAM detection, don't set SR70/71/74/75
	fbdev: sm712fb: fix white screen of death on reboot, don't set CR3B-CR3F
	fbdev: sm712fb: fix boot screen glitch when sm712fb replaces VGA
	fbdev: sm712fb: fix crashes during framebuffer writes by correctly mapping VRAM
	fbdev: sm712fb: fix support for 1024x768-16 mode
	fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display
	fbdev: sm712fb: fix crashes and garbled display during DPMS modesetting
	PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken
	PCI: Mark Atheros AR9462 to avoid bus reset
	PCI: Init PCIe feature bits for managed host bridge alloc
	PCI/AER: Change pci_aer_init() stub to return void
	PCI: rcar: Add the initialization of PCIe link in resume_noirq()
	PCI: Factor out pcie_retrain_link() function
	PCI: Work around Pericom PCIe-to-PCI bridge Retrain Link erratum
	dm cache metadata: Fix loading discard bitset
	dm zoned: Fix zone report handling
	dm delay: fix a crash when invalid device is specified
	dm integrity: correctly calculate the size of metadata area
	dm mpath: always free attached_handler_name in parse_path()
	fuse: Add FOPEN_STREAM to use stream_open()
	xfrm: policy: Fix out-of-bound array accesses in __xfrm_policy_unlink
	xfrm6_tunnel: Fix potential panic when unloading xfrm6_tunnel module
	vti4: ipip tunnel deregistration fixes.
	xfrm: clean up xfrm protocol checks
	esp4: add length check for UDP encapsulation
	xfrm: Honor original L3 slave device in xfrmi policy lookup
	xfrm4: Fix uninitialized memory read in _decode_session4
	clk: sunxi-ng: nkmp: Avoid GENMASK(-1, 0)
	power: supply: cpcap-battery: Fix division by zero
	securityfs: fix use-after-free on symlink traversal
	apparmorfs: fix use-after-free on symlink traversal
	PCI: Fix issue with "pci=disable_acs_redir" parameter being ignored
	x86: kvm: hyper-v: deal with buggy TLB flush requests from WS2012
	mac80211: Fix kernel panic due to use of txq after free
	net: ieee802154: fix missing checks for regmap_update_bits
	KVM: arm/arm64: Ensure vcpu target is unset on reset failure
	power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG
	bpf: Fix preempt_enable_no_resched() abuse
	qmi_wwan: new Wistron, ZTE and D-Link devices
	iwlwifi: mvm: check for length correctness in iwl_mvm_create_skb()
	sched/cpufreq: Fix kobject memleak
	x86/mm/mem_encrypt: Disable all instrumentation for early SME setup
	ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
	perf bench numa: Add define for RUSAGE_THREAD if not present
	perf/x86/intel: Fix race in intel_pmu_disable_event()
	Revert "Don't jump to compute_result state from check_result state"
	md/raid: raid5 preserve the writeback action after the parity check
	driver core: Postpone DMA tear-down until after devres release for probe failure
	Revert "selftests/bpf: skip verifier tests for unsupported program types"
	bpf: relax inode permission check for retrieving bpf program
	bpf: add map_lookup_elem_sys_only for lookups from syscall side
	bpf, lru: avoid messing with eviction heuristics upon syscall lookup
	fbdev: sm712fb: fix memory frequency by avoiding a switch/case fallthrough
	Linux 4.19.46

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-05-25 19:09:59 +02:00
Al Viro
c939121b54 dcache: sort the freeing-without-RCU-delay mess for good.
commit 5467a68cbf upstream.

For lockless accesses to dentries we don't have pinned we rely
(among other things) upon having an RCU delay between dropping
the last reference and actually freeing the memory.

On the other hand, for things like pipes and sockets we neither
do that kind of lockless access, nor want to deal with the
overhead of an RCU delay every time a socket gets closed.

So delay was made optional - setting DCACHE_RCUACCESS in ->d_flags
made sure it would happen.  We tried to avoid setting it unless
we knew we need it.  Unfortunately, that had led to recurring
class of bugs, in which we missed the need to set it.

We only really need it for dentries that are created by
d_alloc_pseudo(), so let's not bother with trying to be smart -
just make having an RCU delay the default.  The ones that do
*not* get it set the replacement flag (DCACHE_NORCU) and we'd
better use that sparingly.  d_alloc_pseudo() is the only
such user right now.

FWIW, the race that finally prompted that switch had been
between __lock_parent() of immediate subdirectory of what's
currently the root of a disconnected tree (e.g. from
open-by-handle in progress) racing with d_splice_alias()
elsewhere picking another alias for the same inode, either
on outright corrupted fs image, or (in case of open-by-handle
on NFS) that subdirectory having been just moved on server.
It's not easy to hit, so the sky is not falling, but that's
not the first race on similar missed cases and the logics
for settinf DCACHE_RCUACCESS has gotten ridiculously
convoluted.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-25 18:23:26 +02:00
Greg Kroah-Hartman
50f91435a2 This is the 4.19.45 stable release
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Merge 4.19.45 into android-4.19

Changes in 4.19.45
	locking/rwsem: Prevent decrement of reader count before increment
	x86/speculation/mds: Revert CPU buffer clear on double fault exit
	x86/speculation/mds: Improve CPU buffer clear documentation
	objtool: Fix function fallthrough detection
	arm64: dts: rockchip: Disable DCMDs on RK3399's eMMC controller.
	ARM: dts: exynos: Fix interrupt for shared EINTs on Exynos5260
	ARM: dts: exynos: Fix audio (microphone) routing on Odroid XU3
	mmc: sdhci-of-arasan: Add DTS property to disable DCMDs.
	ARM: exynos: Fix a leaked reference by adding missing of_node_put
	power: supply: axp288_charger: Fix unchecked return value
	power: supply: axp288_fuel_gauge: Add ACEPC T8 and T11 mini PCs to the blacklist
	arm64: mmap: Ensure file offset is treated as unsigned
	arm64: arch_timer: Ensure counter register reads occur with seqlock held
	arm64: compat: Reduce address limit
	arm64: Clear OSDLR_EL1 on CPU boot
	arm64: Save and restore OSDLR_EL1 across suspend/resume
	sched/x86: Save [ER]FLAGS on context switch
	crypto: crypto4xx - fix ctr-aes missing output IV
	crypto: crypto4xx - fix cfb and ofb "overran dst buffer" issues
	crypto: salsa20 - don't access already-freed walk.iv
	crypto: chacha20poly1305 - set cra_name correctly
	crypto: ccp - Do not free psp_master when PLATFORM_INIT fails
	crypto: vmx - fix copy-paste error in CTR mode
	crypto: skcipher - don't WARN on unprocessed data after slow walk step
	crypto: crct10dif-generic - fix use via crypto_shash_digest()
	crypto: x86/crct10dif-pcl - fix use via crypto_shash_digest()
	crypto: arm64/gcm-aes-ce - fix no-NEON fallback code
	crypto: gcm - fix incompatibility between "gcm" and "gcm_base"
	crypto: rockchip - update IV buffer to contain the next IV
	crypto: arm/aes-neonbs - don't access already-freed walk.iv
	crypto: arm64/aes-neonbs - don't access already-freed walk.iv
	mmc: core: Fix tag set memory leak
	ALSA: line6: toneport: Fix broken usage of timer for delayed execution
	ALSA: usb-audio: Fix a memory leak bug
	ALSA: hda/hdmi - Read the pin sense from register when repolling
	ALSA: hda/hdmi - Consider eld_valid when reporting jack event
	ALSA: hda/realtek - EAPD turn on later
	ALSA: hdea/realtek - Headset fixup for System76 Gazelle (gaze14)
	ASoC: max98090: Fix restore of DAPM Muxes
	ASoC: RT5677-SPI: Disable 16Bit SPI Transfers
	ASoC: fsl_esai: Fix missing break in switch statement
	ASoC: codec: hdac_hdmi add device_link to card device
	bpf, arm64: remove prefetch insn in xadd mapping
	crypto: ccree - remove special handling of chained sg
	crypto: ccree - fix mem leak on error path
	crypto: ccree - don't map MAC key on stack
	crypto: ccree - use correct internal state sizes for export
	crypto: ccree - don't map AEAD key and IV on stack
	crypto: ccree - pm resume first enable the source clk
	crypto: ccree - HOST_POWER_DOWN_EN should be the last CC access during suspend
	crypto: ccree - add function to handle cryptocell tee fips error
	crypto: ccree - handle tee fips error during power management resume
	mm/mincore.c: make mincore() more conservative
	mm/huge_memory: fix vmf_insert_pfn_{pmd, pud}() crash, handle unaligned addresses
	mm/hugetlb.c: don't put_page in lock of hugetlb_lock
	hugetlb: use same fault hash key for shared and private mappings
	ocfs2: fix ocfs2 read inode data panic in ocfs2_iget
	userfaultfd: use RCU to free the task struct when fork fails
	ACPI: PM: Set enable_for_wake for wakeup GPEs during suspend-to-idle
	mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L
	mfd: max77620: Fix swapped FPS_PERIOD_MAX_US values
	mtd: spi-nor: intel-spi: Avoid crossing 4K address boundary on read/write
	tty: vt.c: Fix TIOCL_BLANKSCREEN console blanking if blankinterval == 0
	tty/vt: fix write/write race in ioctl(KDSKBSENT) handler
	jbd2: check superblock mapped prior to committing
	ext4: make sanity check in mballoc more strict
	ext4: ignore e_value_offs for xattrs with value-in-ea-inode
	ext4: avoid drop reference to iloc.bh twice
	ext4: fix use-after-free race with debug_want_extra_isize
	ext4: actually request zeroing of inode table after grow
	ext4: fix ext4_show_options for file systems w/o journal
	btrfs: Check the first key and level for cached extent buffer
	btrfs: Correctly free extent buffer in case btree_read_extent_buffer_pages fails
	btrfs: Honour FITRIM range constraints during free space trim
	Btrfs: send, flush dellaloc in order to avoid data loss
	Btrfs: do not start a transaction during fiemap
	Btrfs: do not start a transaction at iterate_extent_inodes()
	bcache: fix a race between cache register and cacheset unregister
	bcache: never set KEY_PTRS of journal key to 0 in journal_reclaim()
	ipmi:ssif: compare block number correctly for multi-part return messages
	crypto: ccm - fix incompatibility between "ccm" and "ccm_base"
	fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
	tty: Don't force RISCV SBI console as preferred console
	ext4: zero out the unused memory region in the extent tree block
	ext4: fix data corruption caused by overlapping unaligned and aligned IO
	ext4: fix use-after-free in dx_release()
	ext4: avoid panic during forced reboot due to aborted journal
	ALSA: hda/realtek - Corrected fixup for System76 Gazelle (gaze14)
	ALSA: hda/realtek - Fixup headphone noise via runtime suspend
	ALSA: hda/realtek - Fix for Lenovo B50-70 inverted internal microphone bug
	jbd2: fix potential double free
	KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes
	KVM: lapic: Busy wait for timer to expire when using hv_timer
	kbuild: turn auto.conf.cmd into a mandatory include file
	xen/pvh: set xen_domain_type to HVM in xen_pvh_init
	libnvdimm/namespace: Fix label tracking error
	iov_iter: optimize page_copy_sane()
	pstore: Centralize init/exit routines
	pstore: Allocate compression during late_initcall()
	pstore: Refactor compression initialization
	ext4: fix compile error when using BUFFER_TRACE
	ext4: don't update s_rev_level if not required
	Linux 4.19.45

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-05-22 08:00:39 +02:00
Andy Lutomirski
b185029f5c x86/speculation/mds: Improve CPU buffer clear documentation
commit 9d8d0294e7 upstream.

On x86_64, all returns to usermode go through
prepare_exit_to_usermode(), with the sole exception of do_nmi().
This even includes machine checks -- this was added several years
ago to support MCE recovery.  Update the documentation.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 04dcbdb805 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/999fa9e126ba6a48e9d214d2f18dbde5c62ac55c.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22 07:37:35 +02:00
Andy Lutomirski
393ca9ea37 x86/speculation/mds: Revert CPU buffer clear on double fault exit
commit 88640e1dcd upstream.

The double fault ESPFIX path doesn't return to user mode at all --
it returns back to the kernel by simulating a #GP fault.
prepare_exit_to_usermode() will run on the way out of
general_protection before running user code.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 04dcbdb805 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/ac97612445c0a44ee10374f6ea79c222fe22a5c4.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22 07:37:34 +02:00
Tri Vo
b3af390f82 UPSTREAM: gcov: docs: add a note on GCC vs Clang differences
Document some things of note to gcov users:
1. GCC gcov and Clang llvm-cov tools are not compatible.
2. The use of GCC vs Clang is transparent at build-time.

Also adjust the documentation to account for the removal of config symbol
CONFIG_GCOV_FORMAT_AUTODETECT by commit 6a61b70b43 ("gcov: remove
CONFIG_GCOV_FORMAT_AUTODETECT").

Link: http://lkml.kernel.org/r/20190318025411.98014-4-trong@android.com
Signed-off-by: Tri Vo <trong@android.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Greg Hackmann <ghackmann@android.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petri Gynther <pgynther@google.com>
Cc: Prasad Sodagudi <psodagud@quicinc.com>
Cc: Trilok Soni <tsoni@quicinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit aa069a23a2)
Bug: 132997968
Test: defconfig + CONFIG_GCOV_KERNEL records coverage

Change-Id: Id9a248d5e6d8fc643300230b2ab2ce902050a6ae
2019-05-17 16:04:56 -07:00
Greg Kroah-Hartman
c9415ba22b This is the 4.19.43 stable release
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Merge 4.19.43 into android-4.19

Changes in 4.19.43
	Documentation/l1tf: Fix small spelling typo
	x86/cpu: Sanitize FAM6_ATOM naming
	kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
	x86/msr-index: Cleanup bit defines
	x86/speculation: Consolidate CPU whitelists
	x86/speculation/mds: Add basic bug infrastructure for MDS
	x86/speculation/mds: Add BUG_MSBDS_ONLY
	x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
	x86/speculation/mds: Add mds_clear_cpu_buffers()
	x86/speculation/mds: Clear CPU buffers on exit to user
	x86/kvm/vmx: Add MDS protection when L1D Flush is not active
	x86/speculation/mds: Conditionally clear CPU buffers on idle entry
	x86/speculation/mds: Add mitigation control for MDS
	x86/speculation/mds: Add sysfs reporting for MDS
	x86/speculation/mds: Add mitigation mode VMWERV
	Documentation: Move L1TF to separate directory
	Documentation: Add MDS vulnerability documentation
	x86/speculation/mds: Add mds=full,nosmt cmdline option
	x86/speculation: Move arch_smt_update() call to after mitigation decisions
	x86/speculation/mds: Add SMT warning message
	x86/speculation/mds: Fix comment
	x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
	cpu/speculation: Add 'mitigations=' cmdline option
	x86/speculation: Support 'mitigations=' cmdline option
	powerpc/speculation: Support 'mitigations=' cmdline option
	s390/speculation: Support 'mitigations=' cmdline option
	x86/speculation/mds: Add 'mitigations=' support for MDS
	x86/mds: Add MDSUM variant to the MDS documentation
	Documentation: Correct the possible MDS sysfs values
	x86/speculation/mds: Fix documentation typo
	Linux 4.19.43

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-05-14 19:34:39 +02:00
Josh Poimboeuf
b21bde49d3 x86/speculation/mds: Fix documentation typo
commit 95310e348a upstream

Fix a minor typo in the MDS documentation: "eanbled" -> "enabled".

Reported-by: Jeff Bastian <jbastian@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:18:00 +02:00
Tyler Hicks
8e65568e9d Documentation: Correct the possible MDS sysfs values
commit ea01668f9f upstream

Adjust the last two rows in the table that display possible values when
MDS mitigation is enabled. They both were slightly innacurate.

In addition, convert the table of possible values and their descriptions
to a list-table. The simple table format uses the top border of equals
signs to determine cell width which resulted in the first column being
far too wide in comparison to the second column that contained the
majority of the text.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:18:00 +02:00
speck for Pawan Gupta
2e4c548902 x86/mds: Add MDSUM variant to the MDS documentation
commit e672f8bf71 upstream

Updated the documentation for a new CVE-2019-11091 Microarchitectural Data
Sampling Uncacheable Memory (MDSUM) which is a variant of
Microarchitectural Data Sampling (MDS). MDS is a family of side channel
attacks on internal buffers in Intel CPUs.

MDSUM is a special case of MSBDS, MFBDS and MLPDS. An uncacheable load from
memory that takes a fault or assist can leave data in a microarchitectural
structure that may later be observed using one of the same methods used by
MSBDS, MFBDS or MLPDS. There are no new code changes expected for MDSUM.
The existing mitigation for MDS applies to MDSUM as well.

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Reviewed-by: Jon Masters <jcm@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:18:00 +02:00
Josh Poimboeuf
12a0dad799 x86/speculation/mds: Add 'mitigations=' support for MDS
commit 5c14068f87 upstream

Add MDS to the new 'mitigations=' cmdline option.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:17:59 +02:00
Josh Poimboeuf
59a14fb583 s390/speculation: Support 'mitigations=' cmdline option
commit 0336e04a65 upstream

Configure s390 runtime CPU speculation bug mitigations in accordance
with the 'mitigations=' cmdline option.  This affects Spectre v1 and
Spectre v2.

The default behavior is unchanged.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz> (on x86)
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Phil Auld <pauld@redhat.com>
Link: https://lkml.kernel.org/r/e4a161805458a5ec88812aac0307ae3908a030fc.1555085500.git.jpoimboe@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:17:59 +02:00
Josh Poimboeuf
74857f69fe powerpc/speculation: Support 'mitigations=' cmdline option
commit 782e69efb3 upstream

Configure powerpc CPU runtime speculation bug mitigations in accordance
with the 'mitigations=' cmdline option.  This affects Meltdown, Spectre
v1, Spectre v2, and Speculative Store Bypass.

The default behavior is unchanged.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz> (on x86)
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Phil Auld <pauld@redhat.com>
Link: https://lkml.kernel.org/r/245a606e1a42a558a310220312d9b6adb9159df6.1555085500.git.jpoimboe@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:17:59 +02:00
Josh Poimboeuf
af5332dd99 x86/speculation: Support 'mitigations=' cmdline option
commit d68be4c4d3 upstream

Configure x86 runtime CPU speculation bug mitigations in accordance with
the 'mitigations=' cmdline option.  This affects Meltdown, Spectre v2,
Speculative Store Bypass, and L1TF.

The default behavior is unchanged.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz> (on x86)
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Phil Auld <pauld@redhat.com>
Link: https://lkml.kernel.org/r/6616d0ae169308516cfdf5216bedd169f8a8291b.1555085500.git.jpoimboe@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14 19:17:59 +02:00