Commit Graph

269 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
a3cd27f5c4 ANDROID: GKI: fix up crc change in ip.h
Commit 92071a2b8f7f ("net: lwtunnel: handle MTU calculation in
forwading") was backported to 5.10.50 and it caused a crc change in
include/net/ip.h due to a new .h file being included.

No real abi change happened here, so just #ifdef the .h file out when
doing the crc check.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1bad0458bc0f9130239fc94ca982e800681cd443
2021-07-15 07:00:58 +02:00
Greg Kroah-Hartman
2df0fb4a4b This is the 5.10.50 stable release
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Merge 5.10.50 into android12-5.10-lts

Changes in 5.10.50
	Bluetooth: hci_qca: fix potential GPF
	Bluetooth: btqca: Don't modify firmware contents in-place
	Bluetooth: Remove spurious error message
	ALSA: usb-audio: fix rate on Ozone Z90 USB headset
	ALSA: usb-audio: Fix OOB access at proc output
	ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire
	ALSA: usb-audio: scarlett2: Fix wrong resume call
	ALSA: intel8x0: Fix breakage at ac97 clock measurement
	ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8
	ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8
	ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8
	ALSA: hda/realtek: Add another ALC236 variant support
	ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook x360 830 G8
	ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx
	ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D
	ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
	ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC
	media: dvb-usb: fix wrong definition
	Input: usbtouchscreen - fix control-request directions
	net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
	usb: gadget: eem: fix echo command packet response issue
	usb: renesas-xhci: Fix handling of unknown ROM state
	USB: cdc-acm: blacklist Heimann USB Appset device
	usb: dwc3: Fix debugfs creation flow
	usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
	xhci: solve a double free problem while doing s4
	gfs2: Fix underflow in gfs2_page_mkwrite
	gfs2: Fix error handling in init_statfs
	ntfs: fix validity check for file name attribute
	selftests/lkdtm: Avoid needing explicit sub-shell
	copy_page_to_iter(): fix ITER_DISCARD case
	iov_iter_fault_in_readable() should do nothing in xarray case
	Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
	crypto: nx - Fix memcpy() over-reading in nonce
	crypto: ccp - Annotate SEV Firmware file names
	arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
	ARM: dts: ux500: Fix LED probing
	ARM: dts: at91: sama5d4: fix pinctrl muxing
	btrfs: send: fix invalid path for unlink operations after parent orphanization
	btrfs: compression: don't try to compress if we don't have enough pages
	btrfs: clear defrag status of a root if starting transaction fails
	ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
	ext4: fix kernel infoleak via ext4_extent_header
	ext4: fix overflow in ext4_iomap_alloc()
	ext4: return error code when ext4_fill_flex_info() fails
	ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
	ext4: remove check for zero nr_to_scan in ext4_es_scan()
	ext4: fix avefreec in find_group_orlov
	ext4: use ext4_grp_locked_error in mb_find_extent
	can: bcm: delay release of struct bcm_op after synchronize_rcu()
	can: gw: synchronize rcu operations before removing gw job entry
	can: isotp: isotp_release(): omit unintended hrtimer restart on socket release
	can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done
	can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
	mac80211: remove iwlwifi specific workaround that broke sta NDP tx
	SUNRPC: Fix the batch tasks count wraparound.
	SUNRPC: Should wake up the privileged task firstly.
	bus: mhi: Wait for M2 state during system resume
	mm/gup: fix try_grab_compound_head() race with split_huge_page()
	perf/smmuv3: Don't trample existing events with global filter
	KVM: nVMX: Handle split-lock #AC exceptions that happen in L2
	KVM: PPC: Book3S HV: Workaround high stack usage with clang
	KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs
	KVM: x86/mmu: Use MMU's role to detect CR4.SMEP value in nested NPT walk
	s390/cio: dont call css_wait_for_slow_path() inside a lock
	s390: mm: Fix secure storage access exception handling
	f2fs: Prevent swap file in LFS mode
	clk: agilex/stratix10/n5x: fix how the bypass_reg is handled
	clk: agilex/stratix10: remove noc_clk
	clk: agilex/stratix10: fix bypass representation
	rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
	iio: frequency: adf4350: disable reg and clk on error in adf4350_probe()
	iio: light: tcs3472: do not free unallocated IRQ
	iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
	iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
	iio: ltr501: ltr501_read_ps(): add missing endianness conversion
	iio: accel: bma180: Fix BMA25x bandwidth register values
	serial: mvebu-uart: fix calculation of clock divisor
	serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
	serial_cs: Add Option International GSM-Ready 56K/ISDN modem
	serial_cs: remove wrong GLOBETROTTER.cis entry
	ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
	ssb: sdio: Don't overwrite const buffer if block_write fails
	rsi: Assign beacon rate settings to the correct rate_info descriptor field
	rsi: fix AP mode with WPA failure due to encrypted EAPOL
	tracing/histograms: Fix parsing of "sym-offset" modifier
	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
	seq_buf: Make trace_seq_putmem_hex() support data longer than 8
	powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
	loop: Fix missing discard support when using LOOP_CONFIGURE
	evm: Execute evm_inode_init_security() only when an HMAC key is loaded
	evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
	fuse: Fix crash in fuse_dentry_automount() error path
	fuse: Fix crash if superblock of submount gets killed early
	fuse: Fix infinite loop in sget_fc()
	fuse: ignore PG_workingset after stealing
	fuse: check connected before queueing on fpq->io
	fuse: reject internal errno
	thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure
	spi: Make of_register_spi_device also set the fwnode
	Add a reference to ucounts for each cred
	staging: media: rkvdec: fix pm_runtime_get_sync() usage count
	media: marvel-ccic: fix some issues when getting pm_runtime
	media: mdk-mdp: fix pm_runtime_get_sync() usage count
	media: s5p: fix pm_runtime_get_sync() usage count
	media: am437x: fix pm_runtime_get_sync() usage count
	media: sh_vou: fix pm_runtime_get_sync() usage count
	media: mtk-vcodec: fix PM runtime get logic
	media: s5p-jpeg: fix pm_runtime_get_sync() usage count
	media: sunxi: fix pm_runtime_get_sync() usage count
	media: sti/bdisp: fix pm_runtime_get_sync() usage count
	media: exynos4-is: fix pm_runtime_get_sync() usage count
	media: exynos-gsc: fix pm_runtime_get_sync() usage count
	spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
	spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
	spi: omap-100k: Fix the length judgment problem
	regulator: uniphier: Add missing MODULE_DEVICE_TABLE
	sched/core: Initialize the idle task with preemption disabled
	hwrng: exynos - Fix runtime PM imbalance on error
	crypto: nx - add missing MODULE_DEVICE_TABLE
	media: sti: fix obj-$(config) targets
	media: cpia2: fix memory leak in cpia2_usb_probe
	media: cobalt: fix race condition in setting HPD
	media: hevc: Fix dependent slice segment flags
	media: pvrusb2: fix warning in pvr2_i2c_core_done
	media: imx: imx7_mipi_csis: Fix logging of only error event counters
	crypto: qat - check return code of qat_hal_rd_rel_reg()
	crypto: qat - remove unused macro in FW loader
	crypto: qce: skcipher: Fix incorrect sg count for dma transfers
	arm64: perf: Convert snprintf to sysfs_emit
	sched/fair: Fix ascii art by relpacing tabs
	media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off
	media: bt878: do not schedule tasklet when it is not setup
	media: em28xx: Fix possible memory leak of em28xx struct
	media: hantro: Fix .buf_prepare
	media: cedrus: Fix .buf_prepare
	media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
	media: bt8xx: Fix a missing check bug in bt878_probe
	media: st-hva: Fix potential NULL pointer dereferences
	crypto: hisilicon/sec - fixup 3des minimum key size declaration
	Makefile: fix GDB warning with CONFIG_RELR
	media: dvd_usb: memory leak in cinergyt2_fe_attach
	memstick: rtsx_usb_ms: fix UAF
	mmc: sdhci-sprd: use sdhci_sprd_writew
	mmc: via-sdmmc: add a check against NULL pointer dereference
	spi: meson-spicc: fix a wrong goto jump for avoiding memory leak.
	spi: meson-spicc: fix memory leak in meson_spicc_probe
	crypto: shash - avoid comparing pointers to exported functions under CFI
	media: dvb_net: avoid speculation from net slot
	media: siano: fix device register error path
	media: imx-csi: Skip first few frames from a BT.656 source
	hwmon: (max31790) Report correct current pwm duty cycles
	hwmon: (max31790) Fix pwmX_enable attributes
	drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
	KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors
	btrfs: fix error handling in __btrfs_update_delayed_inode
	btrfs: abort transaction if we fail to update the delayed inode
	btrfs: sysfs: fix format string for some discard stats
	btrfs: don't clear page extent mapped if we're not invalidating the full page
	btrfs: disable build on platforms having page size 256K
	locking/lockdep: Fix the dep path printing for backwards BFS
	lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
	KVM: s390: get rid of register asm usage
	regulator: mt6358: Fix vdram2 .vsel_mask
	regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
	media: Fix Media Controller API config checks
	ACPI: video: use native backlight for GA401/GA502/GA503
	HID: do not use down_interruptible() when unbinding devices
	EDAC/ti: Add missing MODULE_DEVICE_TABLE
	ACPI: processor idle: Fix up C-state latency if not ordered
	hv_utils: Fix passing zero to 'PTR_ERR' warning
	lib: vsprintf: Fix handling of number field widths in vsscanf
	Input: goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
	platform/x86: touchscreen_dmi: Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
	platform/x86: touchscreen_dmi: Add info for the Goodix GT912 panel of TM800A550L tablets
	ACPI: EC: Make more Asus laptops use ECDT _GPE
	block_dump: remove block_dump feature in mark_inode_dirty()
	blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter
	blk-mq: clear stale request in tags->rq[] before freeing one request pool
	fs: dlm: cancel work sync othercon
	random32: Fix implicit truncation warning in prandom_seed_state()
	open: don't silently ignore unknown O-flags in openat2()
	drivers: hv: Fix missing error code in vmbus_connect()
	fs: dlm: fix memory leak when fenced
	ACPICA: Fix memory leak caused by _CID repair function
	ACPI: bus: Call kobject_put() in acpi_init() error path
	ACPI: resources: Add checks for ACPI IRQ override
	block: fix race between adding/removing rq qos and normal IO
	platform/x86: asus-nb-wmi: Revert "Drop duplicate DMI quirk structures"
	platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15"
	platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
	nvme-pci: fix var. type for increasing cq_head
	nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst()
	EDAC/Intel: Do not load EDAC driver when running as a guest
	PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
	cifs: improve fallocate emulation
	ACPI: EC: trust DSDT GPE for certain HP laptop
	clocksource: Retry clock read if long delays detected
	clocksource: Check per-CPU clock synchronization when marked unstable
	tpm_tis_spi: add missing SPI device ID entries
	ACPI: tables: Add custom DSDT file as makefile prerequisite
	HID: wacom: Correct base usage for capacitive ExpressKey status bits
	cifs: fix missing spinlock around update to ses->status
	mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device
	block: fix discard request merge
	kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
	ia64: mca_drv: fix incorrect array size calculation
	writeback, cgroup: increment isw_nr_in_flight before grabbing an inode
	spi: Allow to have all native CSs in use along with GPIOs
	spi: Avoid undefined behaviour when counting unused native CSs
	media: venus: Rework error fail recover logic
	media: s5p_cec: decrement usage count if disabled
	media: hantro: do a PM resume earlier
	crypto: ixp4xx - dma_unmap the correct address
	crypto: ixp4xx - update IV after requests
	crypto: ux500 - Fix error return code in hash_hw_final()
	sata_highbank: fix deferred probing
	pata_rb532_cf: fix deferred probing
	media: I2C: change 'RST' to "RSET" to fix multiple build errors
	sched/uclamp: Fix wrong implementation of cpu.uclamp.min
	sched/uclamp: Fix locking around cpu_util_update_eff()
	kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
	pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
	evm: fix writing <securityfs>/evm overflow
	x86/elf: Use _BITUL() macro in UAPI headers
	crypto: sa2ul - Fix leaks on failure paths with sa_dma_init()
	crypto: sa2ul - Fix pm_runtime enable in sa_ul_probe()
	crypto: ccp - Fix a resource leak in an error handling path
	media: rc: i2c: Fix an error message
	pata_ep93xx: fix deferred probing
	locking/lockdep: Reduce LOCKDEP dependency list
	media: rkvdec: Fix .buf_prepare
	media: exynos4-is: Fix a use after free in isp_video_release
	media: au0828: fix a NULL vs IS_ERR() check
	media: tc358743: Fix error return code in tc358743_probe_of()
	media: gspca/gl860: fix zero-length control requests
	m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning
	media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
	regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCK
	crypto: nitrox - fix unchecked variable in nitrox_register_interrupts
	crypto: omap-sham - Fix PM reference leak in omap sham ops
	crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit
	crypto: sm2 - remove unnecessary reset operations
	crypto: sm2 - fix a memory leak in sm2
	mmc: usdhi6rol0: fix error return code in usdhi6_probe()
	arm64: consistently use reserved_pg_dir
	arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
	media: subdev: remove VIDIOC_DQEVENT_TIME32 handling
	media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
	hwmon: (lm70) Use device_get_match_data()
	hwmon: (lm70) Revert "hwmon: (lm70) Add support for ACPI"
	hwmon: (max31722) Remove non-standard ACPI device IDs
	hwmon: (max31790) Fix fan speed reporting for fan7..12
	KVM: nVMX: Sync all PGDs on nested transition with shadow paging
	KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap
	KVM: nVMX: Don't clobber nested MMU's A/D status on EPTP switch
	KVM: x86/mmu: Fix return value in tdp_mmu_map_handle_target_level()
	perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number
	KVM: arm64: Don't zero the cycle count register when PMCR_EL0.P is set
	regulator: hi655x: Fix pass wrong pointer to config.driver_data
	btrfs: clear log tree recovering status if starting transaction fails
	x86/sev: Make sure IRQs are disabled while GHCB is active
	x86/sev: Split up runtime #VC handler for correct state tracking
	sched/rt: Fix RT utilization tracking during policy change
	sched/rt: Fix Deadline utilization tracking during policy change
	sched/uclamp: Fix uclamp_tg_restrict()
	lockdep: Fix wait-type for empty stack
	lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
	spi: spi-sun6i: Fix chipselect/clock bug
	crypto: nx - Fix RCU warning in nx842_OF_upd_status
	psi: Fix race between psi_trigger_create/destroy
	media: v4l2-async: Clean v4l2_async_notifier_add_fwnode_remote_subdev
	media: video-mux: Skip dangling endpoints
	PM / devfreq: Add missing error code in devfreq_add_device()
	ACPI: PM / fan: Put fan device IDs into separate header file
	block: avoid double io accounting for flush request
	nvme-pci: look for StorageD3Enable on companion ACPI device instead
	ACPI: sysfs: Fix a buffer overrun problem with description_show()
	mark pstore-blk as broken
	clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG
	extcon: extcon-max8997: Fix IRQ freeing at error path
	ACPI: APEI: fix synchronous external aborts in user-mode
	blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
	blk-wbt: make sure throttle is enabled properly
	ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros
	ACPI: bgrt: Fix CFI violation
	cpufreq: Make cpufreq_online() call driver->offline() on errors
	blk-mq: update hctx->dispatch_busy in case of real scheduler
	ocfs2: fix snprintf() checking
	dax: fix ENOMEM handling in grab_mapping_entry()
	mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect
	mm/debug_vm_pgtable/basic: iterate over entire protection_map[]
	mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage()
	swap: fix do_swap_page() race with swapoff
	mm/shmem: fix shmem_swapin() race with swapoff
	mm: memcg/slab: properly set up gfp flags for objcg pointer array
	mm: page_alloc: refactor setup_per_zone_lowmem_reserve()
	mm/page_alloc: fix counting of managed_pages
	xfrm: xfrm_state_mtu should return at least 1280 for ipv6
	drm/bridge/sii8620: fix dependency on extcon
	drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable()
	drm/amd/dc: Fix a missing check bug in dm_dp_mst_detect()
	drm/ast: Fix missing conversions to managed API
	video: fbdev: imxfb: Fix an error message
	net: mvpp2: Put fwnode in error case during ->probe()
	net: pch_gbe: Propagate error from devm_gpio_request_one()
	pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin
	pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities
	drm/vmwgfx: Mark a surface gpu-dirty after the SVGA3dCmdDXGenMips command
	drm/vmwgfx: Fix cpu updates of coherent multisample surfaces
	net: qrtr: ns: Fix error return code in qrtr_ns_init()
	clk: meson: g12a: fix gp0 and hifi ranges
	net: ftgmac100: add missing error return code in ftgmac100_probe()
	drm: rockchip: set alpha_en to 0 if it is not used
	drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
	drm/rockchip: dsi: move all lane config except LCDC mux to bind()
	drm/rockchip: lvds: Fix an error handling path
	drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result
	mptcp: fix pr_debug in mptcp_token_new_connect
	mptcp: generate subflow hmac after mptcp_finish_join()
	RDMA/srp: Fix a recently introduced memory leak
	RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats
	RDMA/rtrs: Do not reset hb_missed_max after re-connection
	RDMA/rtrs-srv: Fix memory leak of unfreed rtrs_srv_stats object
	RDMA/rtrs-srv: Fix memory leak when having multiple sessions
	RDMA/rtrs-clt: Check if the queue_depth has changed during a reconnection
	RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats
	ehea: fix error return code in ehea_restart_qps()
	clk: tegra30: Use 300MHz for video decoder by default
	xfrm: remove the fragment check for ipv6 beet mode
	net/sched: act_vlan: Fix modify to allow 0
	RDMA/core: Sanitize WQ state received from the userspace
	drm/pl111: depend on CONFIG_VEXPRESS_CONFIG
	RDMA/rxe: Fix failure during driver load
	drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
	drm/vc4: hdmi: Fix error path of hpd-gpios
	clk: vc5: fix output disabling when enabling a FOD
	drm: qxl: ensure surf.data is ininitialized
	tools/bpftool: Fix error return code in do_batch()
	ath10k: go to path err_unsupported when chip id is not supported
	ath10k: add missing error return code in ath10k_pci_probe()
	wireless: carl9170: fix LEDS build errors & warnings
	ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
	clk: imx8mq: remove SYS PLL 1/2 clock gates
	wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
	ssb: Fix error return code in ssb_bus_scan()
	brcmfmac: fix setting of station info chains bitmask
	brcmfmac: correctly report average RSSI in station info
	brcmfmac: Fix a double-free in brcmf_sdio_bus_reset
	brcmsmac: mac80211_if: Fix a resource leak in an error handling path
	cw1200: Revert unnecessary patches that fix unreal use-after-free bugs
	ath11k: Fix an error handling path in ath11k_core_fetch_board_data_api_n()
	ath10k: Fix an error code in ath10k_add_interface()
	ath11k: send beacon template after vdev_start/restart during csa
	netlabel: Fix memory leak in netlbl_mgmt_add_common
	RDMA/mlx5: Don't add slave port to unaffiliated list
	netfilter: nft_exthdr: check for IPv6 packet before further processing
	netfilter: nft_osf: check for TCP packet before further processing
	netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
	RDMA/rxe: Fix qp reference counting for atomic ops
	selftests/bpf: Whitelist test_progs.h from .gitignore
	xsk: Fix missing validation for skb and unaligned mode
	xsk: Fix broken Tx ring validation
	bpf: Fix libelf endian handling in resolv_btfids
	RDMA/rtrs-srv: Set minimal max_send_wr and max_recv_wr
	samples/bpf: Fix Segmentation fault for xdp_redirect command
	samples/bpf: Fix the error return code of xdp_redirect's main()
	mt76: fix possible NULL pointer dereference in mt76_tx
	mt76: mt7615: fix NULL pointer dereference in tx_prepare_skb()
	net: ethernet: aeroflex: fix UAF in greth_of_remove
	net: ethernet: ezchip: fix UAF in nps_enet_remove
	net: ethernet: ezchip: fix error handling
	vrf: do not push non-ND strict packets with a source LLA through packet taps again
	net: sched: add barrier to ensure correct ordering for lockless qdisc
	tls: prevent oversized sendfile() hangs by ignoring MSG_MORE
	netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic
	pkt_sched: sch_qfq: fix qfq_change_class() error path
	xfrm: Fix xfrm offload fallback fail case
	iwlwifi: increase PNVM load timeout
	rtw88: 8822c: fix lc calibration timing
	vxlan: add missing rcu_read_lock() in neigh_reduce()
	ip6_tunnel: fix GRE6 segmentation
	net/ipv4: swap flow ports when validating source
	net: ti: am65-cpsw-nuss: Fix crash when changing number of TX queues
	tc-testing: fix list handling
	ieee802154: hwsim: Fix memory leak in hwsim_add_one
	ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
	bpf: Fix null ptr deref with mixed tail calls and subprogs
	drm/msm: Fix error return code in msm_drm_init()
	drm/msm/dpu: Fix error return code in dpu_mdss_init()
	mac80211: remove iwlwifi specific workaround NDPs of null_response
	net: bcmgenet: Fix attaching to PYH failed on RPi 4B
	ipv6: exthdrs: do not blindly use init_net
	can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0
	bpf: Do not change gso_size during bpf_skb_change_proto()
	i40e: Fix error handling in i40e_vsi_open
	i40e: Fix autoneg disabling for non-10GBaseT links
	i40e: Fix missing rtnl locking when setting up pf switch
	Revert "ibmvnic: remove duplicate napi_schedule call in open function"
	ibmvnic: set ltb->buff to NULL after freeing
	ibmvnic: free tx_pool if tso_pool alloc fails
	RDMA/cma: Protect RMW with qp_mutex
	net: macsec: fix the length used to copy the key for offloading
	net: phy: mscc: fix macsec key length
	net: atlantic: fix the macsec key length
	ipv6: fix out-of-bound access in ip6_parse_tlv()
	e1000e: Check the PCIm state
	net: dsa: sja1105: fix NULL pointer dereference in sja1105_reload_cbs()
	bpfilter: Specify the log level for the kmsg message
	RDMA/cma: Fix incorrect Packet Lifetime calculation
	gve: Fix swapped vars when fetching max queues
	Revert "be2net: disable bh with spin_lock in be_process_mcc"
	Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
	Bluetooth: Fix not sending Set Extended Scan Response
	Bluetooth: Fix Set Extended (Scan Response) Data
	Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
	clk: actions: Fix UART clock dividers on Owl S500 SoC
	clk: actions: Fix SD clocks factor table on Owl S500 SoC
	clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC
	clk: actions: Fix AHPPREDIV-H-AHB clock chain on Owl S500 SoC
	clk: qcom: clk-alpha-pll: fix CAL_L write in alpha_pll_fabia_prepare
	clk: si5341: Wait for DEVICE_READY on startup
	clk: si5341: Avoid divide errors due to bogus register contents
	clk: si5341: Check for input clock presence and PLL lock on startup
	clk: si5341: Update initialization magic
	writeback: fix obtain a reference to a freeing memcg css
	net: lwtunnel: handle MTU calculation in forwading
	net: sched: fix warning in tcindex_alloc_perfect_hash
	net: tipc: fix FB_MTU eat two pages
	RDMA/mlx5: Don't access NULL-cleared mpi pointer
	RDMA/core: Always release restrack object
	MIPS: Fix PKMAP with 32-bit MIPS huge page support
	staging: fbtft: Rectify GPIO handling
	staging: fbtft: Don't spam logs when probe is deferred
	ASoC: rt5682: Disable irq on shutdown
	rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread()
	serial: fsl_lpuart: don't modify arbitrary data on lpuart32
	serial: fsl_lpuart: remove RTSCTS handling from get_mctrl()
	serial: 8250_omap: fix a timeout loop condition
	tty: nozomi: Fix a resource leak in an error handling function
	mwifiex: re-fix for unaligned accesses
	iio: adis_buffer: do not return ints in irq handlers
	iio: adis16400: do not return ints in irq handlers
	iio: adis16475: do not return ints in irq handlers
	iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: mxc4005: Fix overread of data and alignment issue.
	iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: magn: hmc5843: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: magn: bmc150: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: chemical: atlas: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: cros_ec_sensors: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe()
	ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
	backlight: lm3630a_bl: Put fwnode in error case during ->probe()
	ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
	Input: hil_kbd - fix error return code in hil_dev_connect()
	perf scripting python: Fix tuple_set_u64()
	mtd: partitions: redboot: seek fis-index-block in the right node
	mtd: rawnand: arasan: Ensure proper configuration for the asserted target
	staging: mmal-vchiq: Fix incorrect static vchiq_instance.
	char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol()
	firmware: stratix10-svc: Fix a resource leak in an error handling path
	tty: nozomi: Fix the error handling path of 'nozomi_card_init()'
	leds: class: The -ENOTSUPP should never be seen by user space
	leds: lm3532: select regmap I2C API
	leds: lm36274: Put fwnode in error case during ->probe()
	leds: lm3692x: Put fwnode in any case during ->probe()
	leds: lm3697: Don't spam logs when probe is deferred
	leds: lp50xx: Put fwnode in error case during ->probe()
	scsi: FlashPoint: Rename si_flags field
	scsi: iscsi: Flush block work before unblock
	mfd: mp2629: Select MFD_CORE to fix build error
	mfd: rn5t618: Fix IRQ trigger by changing it to level mode
	fsi: core: Fix return of error values on failures
	fsi: scom: Reset the FSI2PIB engine for any error
	fsi: occ: Don't accept response from un-initialized OCC
	fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
	fsi/sbefifo: Fix reset timeout
	visorbus: fix error return code in visorchipset_init()
	iommu/amd: Fix extended features logging
	s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK
	s390: enable HAVE_IOREMAP_PROT
	s390: appldata depends on PROC_SYSCTL
	selftests: splice: Adjust for handler fallback removal
	iommu/dma: Fix IOVA reserve dma ranges
	ASoC: max98373-sdw: use first_hw_init flag on resume
	ASoC: rt1308-sdw: use first_hw_init flag on resume
	ASoC: rt5682-sdw: use first_hw_init flag on resume
	ASoC: rt700-sdw: use first_hw_init flag on resume
	ASoC: rt711-sdw: use first_hw_init flag on resume
	ASoC: rt715-sdw: use first_hw_init flag on resume
	ASoC: rt5682: fix getting the wrong device id when the suspend_stress_test
	ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID
	ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()'
	usb: gadget: f_fs: Fix setting of device and driver data cross-references
	usb: dwc2: Don't reset the core after setting turnaround time
	eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
	eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
	thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default()
	iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: light: vcnl4000: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	ASoC: fsl_spdif: Fix error handler with pm_runtime_enable
	staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
	staging: gdm724x: check for overflow in gdm_lte_netif_rx()
	staging: rtl8712: fix error handling in r871xu_drv_init
	staging: rtl8712: fix memory leak in rtl871x_load_fw_cb
	coresight: core: Fix use of uninitialized pointer
	staging: mt7621-dts: fix pci address for PCI memory range
	serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
	iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
	of: Fix truncation of memory sizes on 32-bit platforms
	mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
	habanalabs: Fix an error handling path in 'hl_pci_probe()'
	scsi: mpt3sas: Fix error return value in _scsih_expander_add()
	soundwire: stream: Fix test for DP prepare complete
	phy: uniphier-pcie: Fix updating phy parameters
	phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
	extcon: sm5502: Drop invalid register write in sm5502_reg_data
	extcon: max8997: Add missing modalias string
	powerpc/powernv: Fix machine check reporting of async store errors
	ASoC: atmel-i2s: Fix usage of capture and playback at the same time
	configfs: fix memleak in configfs_release_bin_file
	ASoC: Intel: sof_sdw: add SOF_RT715_DAI_ID_FIX for AlderLake
	ASoC: fsl_spdif: Fix unexpected interrupt after suspend
	leds: as3645a: Fix error return code in as3645a_parse_node()
	leds: ktd2692: Fix an error handling path
	selftests/ftrace: fix event-no-pid on 1-core machine
	serial: 8250: 8250_omap: Disable RX interrupt after DMA enable
	serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
	powerpc: Offline CPU in stop_this_cpu()
	powerpc/papr_scm: Properly handle UUID types and API
	powerpc/64s: Fix copy-paste data exposure into newly created tasks
	powerpc/papr_scm: Make 'perf_stats' invisible if perf-stats unavailable
	ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found
	serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
	serial: mvebu-uart: correctly calculate minimal possible baudrate
	arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
	vfio/pci: Handle concurrent vma faults
	mm/pmem: avoid inserting hugepage PTE entry with fsdax if hugepage support is disabled
	mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK
	mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled()
	mm/huge_memory.c: don't discard hugepage if other processes are mapping it
	mm/hugetlb: use helper huge_page_order and pages_per_huge_page
	mm/hugetlb: remove redundant check in preparing and destroying gigantic page
	hugetlb: remove prep_compound_huge_page cleanup
	include/linux/huge_mm.h: remove extern keyword
	mm/z3fold: fix potential memory leak in z3fold_destroy_pool()
	mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page
	lib/math/rational.c: fix divide by zero
	selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
	selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
	selftests/vm/pkeys: refill shadow register after implicit kernel write
	perf llvm: Return -ENOMEM when asprintf() fails
	csky: fix syscache.c fallthrough warning
	csky: syscache: Fixup duplicate cache flush
	exfat: handle wrong stream entry size in exfat_readdir()
	scsi: fc: Correct RHBA attributes length
	scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd()
	mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion
	fscrypt: don't ignore minor_hash when hash is 0
	fscrypt: fix derivation of SipHash keys on big endian CPUs
	tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status()
	erofs: fix error return code in erofs_read_superblock()
	block: return the correct bvec when checking for gaps
	io_uring: fix blocking inline submission
	mmc: block: Disable CMDQ on the ioctl path
	mmc: vub3000: fix control-request direction
	media: exynos4-is: remove a now unused integer
	scsi: core: Retry I/O for Notify (Enable Spinup) Required error
	crypto: qce - fix error return code in qce_skcipher_async_req_handle()
	s390: preempt: Fix preempt_count initialization
	cred: add missing return error code when set_cred_ucounts() failed
	iommu/dma: Fix compile warning in 32-bit builds
	powerpc/preempt: Don't touch the idle task's preempt_count during hotplug
	Linux 5.10.50

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iec4eab24ea8eb5a6d79739a1aec8432d93a8f82c
2021-07-14 17:35:23 +02:00
Vadim Fedorenko
4476568069 net: lwtunnel: handle MTU calculation in forwading
[ Upstream commit fade56410c ]

Commit 14972cbd34 ("net: lwtunnel: Handle fragmentation") moved
fragmentation logic away from lwtunnel by carry encap headroom and
use it in output MTU calculation. But the forwarding part was not
covered and created difference in MTU for output and forwarding and
further to silent drops on ipv4 forwarding path. Fix it by taking
into account lwtunnel encap headroom.

The same commit also introduced difference in how to treat RTAX_MTU
in IPv4 and IPv6 where latter explicitly removes lwtunnel encap
headroom from route MTU. Make IPv4 version do the same.

Fixes: 14972cbd34 ("net: lwtunnel: Handle fragmentation")
Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:32 +02:00
Maciej Żenczykowski
8a4b8ea595 ANDROID: net: introduce ip_local_unbindable_ports sysctl
and associated inet_is_local_unbindable_port() helper function:
use it to make explicitly binding to an unbindable port return
-EPERM 'Operation not permitted'.

Autobind doesn't honour this new sysctl since:
  (a) you can simply set both if that's the behaviour you desire
  (b) there could be a use for preventing explicit while allowing auto
  (c) it's faster in the relatively critical path of doing port selection
      during connect() to only check one bitmap instead of both

Various ports may have special use cases which are not suitable for
use by general userspace applications. Currently, ports specified in
ip_local_reserved_ports sysctl will not be returned only in case of
automatic port assignment, but nothing prevents you from explicitly
binding to them - even from an entirely unprivileged process.

In certain cases it is desirable to prevent the host from assigning the
ports even in case of explicit binds, even from superuser processes.

Example use cases might be:
 - a port being stolen by the nic for remote serial console, remote
   power management or some other sort of debugging functionality
   (crash collection, gdb, direct access to some other microcontroller
   on the nic or motherboard, remote management of the nic itself).
 - a transparent proxy where packets are being redirected: in case
   a socket matches this connection, packets from this application
   would be incorrectly sent to one of the endpoints.

Initially I wanted to solve this problem via the simple one line:

static inline bool inet_port_requires_bind_service(struct net *net, unsigned short port) {
-       return port < net->ipv4.sysctl_ip_prot_sock;
+       return port < net->ipv4.sysctl_ip_prot_sock || inet_is_local_reserved_port(net, port);
}

However, this doesn't work for two reasons:
  (a) it changes userspace visible behaviour of the existing local
      reserved ports sysctl, and there appears to be enough documentation
      on the internet talking about setting it to make this a bad idea
  (b) it doesn't prevent privileged apps from using these ports,
      CAP_BIND_SERVICE is relatively likely to be available to, for example,
      a recursive DNS server so it can listed on port 53, which also needs
      to do src port randomization for outgoing queries due to security
      reasons (and it thus does manual port binding).

If we *know* that certain ports are simply unusable, then it's better
nothing even gets the opportunity to try to use them.  This way we at
least get a quick failure, instead of some sort of timeout (or possibly
even corruption of the data stream of the non-kernel based use case).

Test:
  vm:~# cat /proc/sys/net/ipv4/ip_local_unbindable_ports

  vm:~# python -c 'import socket; s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM, 0); s.bind(("::", 3967))'
  vm:~# python -c 'import socket; s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, 0); s.bind(("::", 3967))'
  vm:~# echo 3967 > /proc/sys/net/ipv4/ip_local_unbindable_ports
  vm:~# cat /proc/sys/net/ipv4/ip_local_unbindable_ports
  3967
  vm:~# python -c 'import socket; s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM, 0); s.bind(("::", 3967))'
  socket.error: (1, 'Operation not permitted')
  vm:~# python -c 'import socket; s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, 0); s.bind(("::", 3967))'
  socket.error: (1, 'Operation not permitted')

Cc: Sean Tranchetti <stranche@codeaurora.org>
Cc: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Linux SCTP <linux-sctp@vger.kernel.org>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Bug: 140404597
Change-Id: Ie96207bea90ae1345adf7b45724d0caf4d6e52c2
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
2021-02-09 15:49:37 +00:00
David S. Miller
8b0308fe31 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Rejecting non-native endian BTF overlapped with the addition
of support for it.

The rest were more simple overlapping changes, except the
renesas ravb binding update, which had to follow a file
move as well as a YAML conversion.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-05 18:40:01 -07:00
Maciej Żenczykowski
02a1b175b0 net/ipv4: always honour route mtu during forwarding
Documentation/networking/ip-sysctl.txt:46 says:
  ip_forward_use_pmtu - BOOLEAN
    By default we don't trust protocol path MTUs while forwarding
    because they could be easily forged and can lead to unwanted
    fragmentation by the router.
    You only need to enable this if you have user-space software
    which tries to discover path mtus by itself and depends on the
    kernel honoring this information. This is normally not the case.
    Default: 0 (disabled)
    Possible values:
    0 - disabled
    1 - enabled

Which makes it pretty clear that setting it to 1 is a potential
security/safety/DoS issue, and yet it is entirely reasonable to want
forwarded traffic to honour explicitly administrator configured
route mtus (instead of defaulting to device mtu).

Indeed, I can't think of a single reason why you wouldn't want to.
Since you configured a route mtu you probably know better...

It is pretty common to have a higher device mtu to allow receiving
large (jumbo) frames, while having some routes via that interface
(potentially including the default route to the internet) specify
a lower mtu.

Note that ipv6 forwarding uses device mtu unless the route is locked
(in which case it will use the route mtu).

This approach is not usable for IPv4 where an 'mtu lock' on a route
also has the side effect of disabling TCP path mtu discovery via
disabling the IPv4 DF (don't frag) bit on all outgoing frames.

I'm not aware of a way to lock a route from an IPv6 RA, so that also
potentially seems wrong.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: Sunmeet Gill (Sunny) <sgill@quicinc.com>
Cc: Vinay Paradkar <vparadka@qti.qualcomm.com>
Cc: Tyler Wear <twear@quicinc.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24 19:51:16 -07:00
Wei Wang
de033b7d15 ip: pass tos into ip_build_and_send_pkt()
This commit adds tos as a new passed in parameter to
ip_build_and_send_pkt() which will be used in the later commit.
This is a pure restructure and does not have any functional change.

Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-10 13:15:40 -07:00
Christoph Hellwig
a7b75c5a8c net: pass a sockptr_t into ->setsockopt
Rework the remaining setsockopt code to pass a sockptr_t instead of a
plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
outside of architecture specific code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154]
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-24 15:41:54 -07:00
Christoph Hellwig
de40a3e883 net/ipv4: merge ip_options_get and ip_options_get_from_user
Use the sockptr_t type to merge the versions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-24 15:41:54 -07:00
Christoph Hellwig
b6238c04c0 net/ipv4: remove compat_ip_{get,set}sockopt
Handle the few cases that need special treatment in-line using
in_compat_syscall().

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-19 18:16:41 -07:00
Eric Dumazet
05e22e8395 tcp: remove indirect calls for icsk->icsk_af_ops->queue_xmit
Mitigate RETPOLINE costs in __tcp_transmit_skb()
by using INDIRECT_CALL_INET() wrapper.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-20 17:47:53 -07:00
Christoph Hellwig
c1f9ec5776 ipv4: add ip_sock_set_pktinfo
Add a helper to directly set the IP_PKTINFO sockopt from kernel
space without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 11:11:45 -07:00
Christoph Hellwig
2de569bda2 ipv4: add ip_sock_set_mtu_discover
Add a helper to directly set the IP_MTU_DISCOVER sockopt from kernel
space without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com> [rxrpc bits]
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 11:11:45 -07:00
Christoph Hellwig
db45c0ef25 ipv4: add ip_sock_set_recverr
Add a helper to directly set the IP_RECVERR sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 11:11:45 -07:00
Christoph Hellwig
c4e446bf5a ipv4: add ip_sock_set_freebind
Add a helper to directly set the IP_FREEBIND sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 11:11:45 -07:00
Christoph Hellwig
6ebf71bab9 ipv4: add ip_sock_set_tos
Add a helper to directly set the IP_TOS sockopt from kernel space without
going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 11:11:45 -07:00
Eric Dumazet
501a90c945 inet: protect against too small mtu values.
syzbot was once again able to crash a host by setting a very small mtu
on loopback device.

Let's make inetdev_valid_mtu() available in include/net/ip.h,
and use it in ip_setup_cork(), so that we protect both ip_append_page()
and __ip_append_data()

Also add a READ_ONCE() when the device mtu is read.

Pairs this lockless read with one WRITE_ONCE() in __dev_set_mtu(),
even if other code paths might write over this field.

Add a big comment in include/linux/netdevice.h about dev->mtu
needing READ_ONCE()/WRITE_ONCE() annotations.

Hopefully we will add the missing ones in followup patches.

[1]

refcount_t: saturated; leaking memory.
WARNING: CPU: 0 PID: 9464 at lib/refcount.c:22 refcount_warn_saturate+0x138/0x1f0 lib/refcount.c:22
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 9464 Comm: syz-executor850 Not tainted 5.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x3e kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:refcount_warn_saturate+0x138/0x1f0 lib/refcount.c:22
Code: 06 31 ff 89 de e8 c8 f5 e6 fd 84 db 0f 85 6f ff ff ff e8 7b f4 e6 fd 48 c7 c7 e0 71 4f 88 c6 05 56 a6 a4 06 01 e8 c7 a8 b7 fd <0f> 0b e9 50 ff ff ff e8 5c f4 e6 fd 0f b6 1d 3d a6 a4 06 31 ff 89
RSP: 0018:ffff88809689f550 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815e4336 RDI: ffffed1012d13e9c
RBP: ffff88809689f560 R08: ffff88809c50a3c0 R09: fffffbfff15d31b1
R10: fffffbfff15d31b0 R11: ffffffff8ae98d87 R12: 0000000000000001
R13: 0000000000040100 R14: ffff888099041104 R15: ffff888218d96e40
 refcount_add include/linux/refcount.h:193 [inline]
 skb_set_owner_w+0x2b6/0x410 net/core/sock.c:1999
 sock_wmalloc+0xf1/0x120 net/core/sock.c:2096
 ip_append_page+0x7ef/0x1190 net/ipv4/ip_output.c:1383
 udp_sendpage+0x1c7/0x480 net/ipv4/udp.c:1276
 inet_sendpage+0xdb/0x150 net/ipv4/af_inet.c:821
 kernel_sendpage+0x92/0xf0 net/socket.c:3794
 sock_sendpage+0x8b/0xc0 net/socket.c:936
 pipe_to_sendpage+0x2da/0x3c0 fs/splice.c:458
 splice_from_pipe_feed fs/splice.c:512 [inline]
 __splice_from_pipe+0x3ee/0x7c0 fs/splice.c:636
 splice_from_pipe+0x108/0x170 fs/splice.c:671
 generic_splice_sendpage+0x3c/0x50 fs/splice.c:842
 do_splice_from fs/splice.c:861 [inline]
 direct_splice_actor+0x123/0x190 fs/splice.c:1035
 splice_direct_to_actor+0x3b4/0xa30 fs/splice.c:990
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1078
 do_sendfile+0x597/0xd00 fs/read_write.c:1464
 __do_sys_sendfile64 fs/read_write.c:1525 [inline]
 __se_sys_sendfile64 fs/read_write.c:1511 [inline]
 __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1511
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441409
Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fffb64c4f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441409
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 0000000000073b8a R08: 0000000000000010 R09: 0000000000000010
R10: 0000000000010001 R11: 0000000000000246 R12: 0000000000402180
R13: 0000000000402210 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Fixes: 1470ddf7f8 ("inet: Remove explicit write references to sk/inet in ip_append_data")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-07 11:55:11 -08:00
Maciej Żenczykowski
66e2f5f7c7 net: inet_is_local_reserved_port() port arg should be unsigned short
Any argument outside of that range would result in an out of bound
memory access, since the accessed array is 65536 bits long.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-26 15:15:07 -08:00
Maciej Żenczykowski
82f31ebf61 net: port < inet_prot_sock(net) --> inet_port_requires_bind_service(net, port)
Note that the sysctl write accessor functions guarantee that:
  net->ipv4.sysctl_ip_prot_sock <= net->ipv4.ip_local_ports.range[0]
invariant is maintained, and as such the max() in selinux hooks is actually spurious.

ie. even though
  if (snum < max(inet_prot_sock(sock_net(sk)), low) || snum > high) {
per logic is the same as
  if ((snum < inet_prot_sock(sock_net(sk)) && snum < low) || snum > high) {
it is actually functionally equivalent to:
  if (snum < low || snum > high) {
which is equivalent to:
  if (snum < inet_prot_sock(sock_net(sk)) || snum < low || snum > high) {
even though the first clause is spurious.

But we want to hold on to it in case we ever want to change what what
inet_port_requires_bind_service() means (for example by changing
it from a, by default, [0..1024) range to some sort of set).

Test: builds, git 'grep inet_prot_sock' finds no other references
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-26 13:20:46 -08:00
Maciej Żenczykowski
30429fba99 net: inet_is_local_reserved_port() should return bool not int
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-11-22 16:52:47 -08:00
Eric Dumazet
e7a409c3f4 ipv4: fix IPSKB_FRAG_PMTU handling with fragmentation
This patch removes the iph field from the state structure, which is not
properly initialized. Instead, add a new field to make the "do we want
to set DF" be the state bit and move the code to set the DF flag from
ip_frag_next().

Joint work with Pablo and Linus.

Fixes: 19c3401a91 ("net: ipv4: place control buffer handling away from fragmentation iterators")
Reported-by: Patrick Schönthaler <patrick@notvads.ovh>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-21 10:46:42 -07:00
Willem de Bruijn
c6af0c227a ip: support SO_MARK cmsg
Enable setting skb->mark for UDP and RAW sockets using cmsg.

This is analogous to existing support for TOS, TTL, txtime, etc.

Packet sockets already support this as of commit c7d39e3263
("packet: support per-packet fwmark for af_packet sendmsg").

Similar to other fields, implement by
1. initialize the sockcm_cookie.mark from socket option sk_mark
2. optionally overwrite this in ip_cmsg_send/ip6_datagram_send_ctl
3. initialize inet_cork.mark from sockcm_cookie.mark
4. initialize each (usually just one) skb->mark from inet_cork.mark

Step 1 is handled in one location for most protocols by ipcm_init_sk
as of commit 351782067b ("ipv4: ipcm_cookie initializers").

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13 21:44:19 +02:00
Eric Dumazet
d6fb396cfa ipv4: tcp: fix ACK/RST sent with a transmit delay
If we want to set a EDT time for the skb we want to send
via ip_send_unicast_reply(), we have to pass a new parameter
and initialize ipc.sockc.transmit_time with it.

This fixes the EDT time for ACK/RST packets sent on behalf of
a TIME_WAIT socket.

Fixes: a842fe1425 ("tcp: add optional per socket transmit delay")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 19:51:12 -07:00
David S. Miller
a6cdeeb16b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Some ISDN files that got removed in net-next had some changes
done in mainline, take the removals.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-07 11:00:14 -07:00
Eric Dumazet
b703414675 net: fix use-after-free in kfree_skb_list
syzbot reported nasty use-after-free [1]

Lets remove frag_list field from structs ip_fraglist_iter
and ip6_fraglist_iter. This seens not needed anyway.

[1] :
BUG: KASAN: use-after-free in kfree_skb_list+0x5d/0x60 net/core/skbuff.c:706
Read of size 8 at addr ffff888085a3cbc0 by task syz-executor303/8947

CPU: 0 PID: 8947 Comm: syz-executor303 Not tainted 5.2.0-rc2+ #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:188
 __kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317
 kasan_report+0x12/0x20 mm/kasan/common.c:614
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:132
 kfree_skb_list+0x5d/0x60 net/core/skbuff.c:706
 ip6_fragment+0x1ef4/0x2680 net/ipv6/ip6_output.c:882
 __ip6_finish_output+0x577/0xaa0 net/ipv6/ip6_output.c:144
 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:156
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:179
 dst_output include/net/dst.h:433 [inline]
 ip6_local_out+0xbb/0x1b0 net/ipv6/output_core.c:179
 ip6_send_skb+0xbb/0x350 net/ipv6/ip6_output.c:1796
 ip6_push_pending_frames+0xc8/0xf0 net/ipv6/ip6_output.c:1816
 rawv6_push_pending_frames net/ipv6/raw.c:617 [inline]
 rawv6_sendmsg+0x2993/0x35e0 net/ipv6/raw.c:947
 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:802
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:671
 ___sys_sendmsg+0x803/0x920 net/socket.c:2292
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330
 __do_sys_sendmsg net/socket.c:2339 [inline]
 __se_sys_sendmsg net/socket.c:2337 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x44add9
Code: e8 7c e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 05 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f826f33bce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000006e7a18 RCX: 000000000044add9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00000000006e7a10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e7a1c
R13: 00007ffcec4f7ebf R14: 00007f826f33c9c0 R15: 20c49ba5e353f7cf

Allocated by task 8947:
 save_stack+0x23/0x90 mm/kasan/common.c:71
 set_track mm/kasan/common.c:79 [inline]
 __kasan_kmalloc mm/kasan/common.c:489 [inline]
 __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:462
 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:497
 slab_post_alloc_hook mm/slab.h:437 [inline]
 slab_alloc_node mm/slab.c:3269 [inline]
 kmem_cache_alloc_node+0x131/0x710 mm/slab.c:3579
 __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:199
 alloc_skb include/linux/skbuff.h:1058 [inline]
 __ip6_append_data.isra.0+0x2a24/0x3640 net/ipv6/ip6_output.c:1519
 ip6_append_data+0x1e5/0x320 net/ipv6/ip6_output.c:1688
 rawv6_sendmsg+0x1467/0x35e0 net/ipv6/raw.c:940
 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:802
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:671
 ___sys_sendmsg+0x803/0x920 net/socket.c:2292
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330
 __do_sys_sendmsg net/socket.c:2339 [inline]
 __se_sys_sendmsg net/socket.c:2337 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 8947:
 save_stack+0x23/0x90 mm/kasan/common.c:71
 set_track mm/kasan/common.c:79 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/common.c:451
 kasan_slab_free+0xe/0x10 mm/kasan/common.c:459
 __cache_free mm/slab.c:3432 [inline]
 kmem_cache_free+0x86/0x260 mm/slab.c:3698
 kfree_skbmem net/core/skbuff.c:625 [inline]
 kfree_skbmem+0xc5/0x150 net/core/skbuff.c:619
 __kfree_skb net/core/skbuff.c:682 [inline]
 kfree_skb net/core/skbuff.c:699 [inline]
 kfree_skb+0xf0/0x390 net/core/skbuff.c:693
 kfree_skb_list+0x44/0x60 net/core/skbuff.c:708
 __dev_xmit_skb net/core/dev.c:3551 [inline]
 __dev_queue_xmit+0x3034/0x36b0 net/core/dev.c:3850
 dev_queue_xmit+0x18/0x20 net/core/dev.c:3914
 neigh_direct_output+0x16/0x20 net/core/neighbour.c:1532
 neigh_output include/net/neighbour.h:511 [inline]
 ip6_finish_output2+0x1034/0x2550 net/ipv6/ip6_output.c:120
 ip6_fragment+0x1ebb/0x2680 net/ipv6/ip6_output.c:863
 __ip6_finish_output+0x577/0xaa0 net/ipv6/ip6_output.c:144
 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:156
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:179
 dst_output include/net/dst.h:433 [inline]
 ip6_local_out+0xbb/0x1b0 net/ipv6/output_core.c:179
 ip6_send_skb+0xbb/0x350 net/ipv6/ip6_output.c:1796
 ip6_push_pending_frames+0xc8/0xf0 net/ipv6/ip6_output.c:1816
 rawv6_push_pending_frames net/ipv6/raw.c:617 [inline]
 rawv6_sendmsg+0x2993/0x35e0 net/ipv6/raw.c:947
 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:802
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:671
 ___sys_sendmsg+0x803/0x920 net/socket.c:2292
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330
 __do_sys_sendmsg net/socket.c:2339 [inline]
 __se_sys_sendmsg net/socket.c:2337 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff888085a3cbc0
 which belongs to the cache skbuff_head_cache of size 224
The buggy address is located 0 bytes inside of
 224-byte region [ffff888085a3cbc0, ffff888085a3cca0)
The buggy address belongs to the page:
page:ffffea0002168f00 refcount:1 mapcount:0 mapping:ffff88821b6f63c0 index:0x0
flags: 0x1fffc0000000200(slab)
raw: 01fffc0000000200 ffffea00027bbf88 ffffea0002105b88 ffff88821b6f63c0
raw: 0000000000000000 ffff888085a3c080 000000010000000c 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888085a3ca80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888085a3cb00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff888085a3cb80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
                                           ^
 ffff888085a3cc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888085a3cc80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc

Fixes: 0feca6190f ("net: ipv6: add skbuff fraglist splitter")
Fixes: c8b17be0b7 ("net: ipv4: add skbuff fraglist splitter")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-03 15:18:00 -07:00
Pablo Neira Ayuso
065ff79f88 net: ipv4: split skbuff into fragments transformer
This patch exposes a new API to refragment a skbuff. This allows you to
split either a linear skbuff or to force the refragmentation of an
existing fraglist using a different mtu. The API consists of:

* ip_frag_init(), that initializes the internal state of the transformer.
* ip_frag_next(), that allows you to fetch the next fragment. This function
  internally allocates the skbuff that represents the fragment, it pushes
  the IPv4 header, and it also copies the payload for each fragment.

The ip_frag_state object stores the internal state of the splitter.

This code has been extracted from ip_do_fragment(). Symbols are also
exported to allow to reuse this iterator from the bridge codepath to
build its own refragmentation routine by reusing the existing codebase.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-30 14:18:17 -07:00
Pablo Neira Ayuso
c8b17be0b7 net: ipv4: add skbuff fraglist splitter
This patch adds the skbuff fraglist splitter. This API provides an
iterator to transform the fraglist into single skbuff objects, it
consists of:

* ip_fraglist_init(), that initializes the internal state of the
  fraglist splitter.
* ip_fraglist_prepare(), that restores the IPv4 header on the
  fragments.
* ip_fraglist_next(), that retrieves the fragment from the fraglist and
  it updates the internal state of the splitter to point to the next
  fragment skbuff in the fraglist.

The ip_fraglist_iter object stores the internal state of the iterator.

This code has been extracted from ip_do_fragment(). Symbols are also
exported to allow to reuse this iterator from the bridge codepath to
build its own refragmentation routine by reusing the existing codebase.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-30 14:18:17 -07:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
David S. Miller
f83f715195 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor comment merge conflict in mlx5.

Staging driver has a fixup due to the skb->xmit_more changes
in 'net-next', but was removed in 'net'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-05 14:14:19 -07:00
Stephen Suryaputra
8c83f2df9c vrf: check accept_source_route on the original netdevice
Configuration check to accept source route IP options should be made on
the incoming netdevice when the skb->dev is an l3mdev master. The route
lookup for the source route next hop also needs the incoming netdev.

v2->v3:
- Simplify by passing the original netdevice down the stack (per David
  Ahern).

Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-01 10:44:58 -07:00
David Ahern
9ab948a91b ipv4: Allow amount of dirty memory from fib resizing to be controllable
fib_trie implementation calls synchronize_rcu when a certain amount of
pages are dirty from freed entries. The number of pages was determined
experimentally in 2009 (commit c3059477fc).

At the current setting, synchronize_rcu is called often -- 51 times in a
second in one test with an average of an 8 msec delay adding a fib entry.
The total impact is a lot of slow down modifying the fib. This is seen
in the output of 'time' - the difference between real time and sys+user.
For example, using 720,022 single path routes and 'ip -batch'[1]:

    $ time ./ip -batch ipv4/routes-1-hops
    real    0m14.214s
    user    0m2.513s
    sys     0m6.783s

So roughly 35% of the actual time to install the routes is from the ip
command getting scheduled out, most notably due to synchronize_rcu (this
is observed using 'perf sched timehist').

This patch makes the amount of dirty memory configurable between 64k where
the synchronize_rcu is called often (small, low end systems that are memory
sensitive) to 64M where synchronize_rcu is called rarely during a large
FIB change (for high end systems with lots of memory). The default is 512kB
which corresponds to the current setting of 128 pages with a 4kB page size.

As an example, at 16MB the worst interval shows 4 calls to synchronize_rcu
in a second blocking for up to 30 msec in a single instance, and a total
of almost 100 msec across the 4 calls in the second. The trade off is
allowing FIB entries to consume more memory in a given time window but
but with much better fib insertion rates (~30% increase in prefixes/sec).
With this patch and net.ipv4.fib_sync_mem set to 16MB, the same batch
file runs in:

    $ time ./ip -batch ipv4/routes-1-hops
    real    0m9.692s
    user    0m2.491s
    sys     0m6.769s

So the dead time is reduced to about 1/2 second or <5% of the real time.

[1] 'ip' modified to not request ACK messages which improves route
    insertion times by about 20%

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-21 13:29:53 -07:00
Hangbin Liu
5e1a99eae8 ipv4: Add ICMPv6 support when parse route ipproto
For ip rules, we need to use 'ipproto ipv6-icmp' to match ICMPv6 headers.
But for ip -6 route, currently we only support tcp, udp and icmp.

Add ICMPv6 support so we can match ipv6-icmp rules for route lookup.

v2: As David Ahern and Sabrina Dubroca suggested, Add an argument to
rtm_getroute_parse_ip_proto() to handle ICMP/ICMPv6 with different family.

Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: eacb9384a3 ("ipv6: support sport, dport and ip_proto in RTM_GETROUTE")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 16:41:27 -08:00
Nazarov Sergey
3da1ed7ac3 net: avoid use IPCB in cipso_v4_error
Extract IP options in cipso_v4_error and use __icmp_send.

Signed-off-by: Sergey Nazarov <s-nazarov@yandex.ru>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-25 14:32:35 -08:00
Paolo Abeni
68cb7d531e ip: factor out protocol delivery helper
So that we can re-use it at the UDP level in a later patch

rfc v3 -> v1
 - add the helper declaration into the ip header

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07 16:23:05 -08:00
David Ahern
d7e774f356 net: Add extack argument to ip_fib_metrics_init
Add extack argument to ip_fib_metrics_init and add messages for invalid
metrics.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-06 15:00:45 -08:00
David Ahern
1620a33695 net: Move free of dst_metrics to helper
Move the refcounting and potential free of dst metrics associated
for ipv4 and ipv6 to a common helper.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-04 21:54:25 -07:00
David Ahern
e1255ed4b6 net: common metrics init helper for dst_entry
ipv4 and ipv6 both use refcounted metrics if FIB entries have metrics set.
Move the common initialization code to a helper and use for both protocols.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-04 21:54:19 -07:00
David Ahern
cc5f0eb216 net: Move free of fib_metrics to helper
Move the refcounting and potential free of dst metrics associated
with a fib entry to a helper and use it in both ipv4 and ipv6.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-04 21:54:10 -07:00
David Ahern
767a221753 net: common metrics init helper for FIB entries
Consolidate initialization of ipv4 and ipv6 metrics when fib entries
are created into a single helper, ip_fib_metrics_init, that handles
the call to ip_metrics_convert.

If no metrics are defined for the fib entry, then the metrics is set
to dst_default_metrics.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-04 21:54:03 -07:00
Willem de Bruijn
678ca42d68 ip: remove tx_flags from ipcm_cookie and use same logic for v4 and v6
skb_shinfo(skb)->tx_flags is derived from sk->sk_tsflags, possibly
after modification by __sock_cmsg_send, by calling sock_tx_timestamp.

The IPv4 and IPv6 paths do this conversion differently. In IPv4, the
individual protocols that support tx timestamps call this function
and store the result in ipc.tx_flags. In IPv6, sock_tx_timestamp is
called in __ip6_append_data.

There is no need to store both tx_flags and ts_flags in the cookie
as one is derived from the other. Convert when setting up the cork
and remove the redundant field. This is similar to IPv6, only have
the conversion happen only once per datagram, in ip(6)_setup_cork.

Also change __ip6_append_data to match __ip_append_data. Only update
tskey if timestamping is enabled with OPT_ID. The SOCK_.. test is
redundant: only valid protocols can have non-zero cork->tx_flags.

After this change the IPv4 and IPv6 logic is the same.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-07 10:58:49 +09:00
Willem de Bruijn
351782067b ipv4: ipcm_cookie initializers
Initialize the cookie in one location to reduce code duplication and
avoid bugs from inconsistent initialization, such as that fixed in
commit 9887cba199 ("ip: limit use of gso_size to udp").

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-07 10:58:49 +09:00
Edward Cree
17266ee939 net: ipv4: listified version of ip_rcv
Also involved adding a way to run a netfilter hook over a list of packets.
 Rather than attempting to make netfilter know about lists (which would be
 a major project in itself) we just let it call the regular okfn (in this
 case ip_rcv_finish()) for any packets it steals, and have it give us back
 a list of packets it's synchronously accepted (which normally NF_HOOK
 would automatically call okfn() on, but we want to be able to potentially
 pass the list to a listified version of okfn().)
The netfilter hooks themselves are indirect calls that still happen per-
 packet (see nf_hook_entry_hookfn()), but again, changing that can be left
 for future work.

There is potential for out-of-order receives if the netfilter hook ends up
 synchronously stealing packets, as they will be processed before any
 accepts earlier in the list.  However, it was already possible for an
 asynchronous accept to cause out-of-order receives, so presumably this is
 considered OK.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04 14:06:20 +09:00
Xin Long
69b9e1e07d ipv4: add __ip_queue_xmit() that supports tos param
This patch introduces __ip_queue_xmit(), through which the callers
can pass tos param into it without having to set inet->tos. For
ipv6, ip6_xmit() already allows passing tclass parameter.

It's needed when some transport protocol doesn't use inet->tos,
like sctp's per transport dscp, which will be added in next patch.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04 11:36:54 +09:00
Roopa Prabhu
404eb77ea7 ipv4: support sport, dport and ip_proto in RTM_GETROUTE
This is a followup to fib rules sport, dport and ipproto
match support. Only supports tcp, udp and icmp for ipproto.
Used by fib rule self tests.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:14:12 -04:00
Willem de Bruijn
bec1f6f697 udp: generate gso with UDP_SEGMENT
Support generic segmentation offload for udp datagrams. Callers can
concatenate and send at once the payload of multiple datagrams with
the same destination.

To set segment size, the caller sets socket option UDP_SEGMENT to the
length of each discrete payload. This value must be smaller than or
equal to the relevant MTU.

A follow-up patch adds cmsg UDP_SEGMENT to specify segment size on a
per send call basis.

Total byte length may then exceed MTU. If not an exact multiple of
segment size, the last segment will be shorter.

The implementation adds a gso_size field to the udp socket, ip(v6)
cmsg cookie and inet_cork structure to be able to set the value at
setsockopt or cmsg time and to work with both lockless and corked
paths.

Initial benchmark numbers show UDP GSO about as expensive as TCP GSO.

    tcp tso
     3197 MB/s 54232 msg/s 54232 calls/s
         6,457,754,262      cycles

    tcp gso
     1765 MB/s 29939 msg/s 29939 calls/s
        11,203,021,806      cycles

    tcp without tso/gso *
      739 MB/s 12548 msg/s 12548 calls/s
        11,205,483,630      cycles

    udp
      876 MB/s 14873 msg/s 624666 calls/s
        11,205,777,429      cycles

    udp gso
     2139 MB/s 36282 msg/s 36282 calls/s
        11,204,374,561      cycles

   [*] after reverting commit 0a6b2a1dc2
       ("tcp: switch to GSO being always on")

Measured total system cycles ('-a') for one core while pinning both
the network receive path and benchmark process to that core:

  perf stat -a -C 12 -e cycles \
    ./udpgso_bench_tx -C 12 -4 -D "$DST" -l 4

Note the reduction in calls/s with GSO. Bytes per syscall drops
increases from 1470 to 61818.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-26 15:08:04 -04:00
Willem de Bruijn
1cd7884dfd udp: expose inet cork to udp
UDP segmentation offload needs access to inet_cork in the udp layer.
Pass the struct to ip(6)_make_skb instead of allocating it on the
stack in that function itself.

This patch is a noop otherwise.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-26 15:06:46 -04:00
David Ahern
a919525ad8 net: Move fib_convert_metrics to metrics file
Move logic of fib_convert_metrics into ip_metrics_convert. This allows
the code that converts netlink attributes into metrics struct to be
re-used in a later patch by IPv6.

This is mostly a code move with the following changes to variable names:
  - fi->fib_net becomes net
  - fc_mx and fc_mx_len are passed as inputs pulled from fib_config
  - metrics array is passed as an input from fi->fib_metrics->metrics

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-17 23:41:15 -04:00
Eric Dumazet
6befe4a78b inet: frags: remove some helpers
Remove sum_frag_mem_limit(), ip_frag_mem() & ip6_frag_mem()

Also since we use rhashtable we can bring back the number of fragments
in "grep FRAG /proc/net/sockstat /proc/net/sockstat6" that was
removed in commit 434d305405 ("inet: frag: don't account number
of fragment queues")

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-31 23:25:39 -04:00
David S. Miller
03fe2debbb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Fun set of conflict resolutions here...

For the mac80211 stuff, these were fortunately just parallel
adds.  Trivially resolved.

In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the
function phy_disable_interrupts() earlier in the file, whilst in
'net-next' the phy_error() call from this function was removed.

In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the
'rt_table_id' member of rtable collided with a bug fix in 'net' that
added a new struct member "rt_mtu_locked" which needs to be copied
over here.

The mlxsw driver conflict consisted of net-next separating
the span code and definitions into separate files, whilst
a 'net' bug fix made some changes to that moved code.

The mlx5 infiniband conflict resolution was quite non-trivial,
the RDMA tree's merge commit was used as a guide here, and
here are their notes:

====================

    Due to bug fixes found by the syzkaller bot and taken into the for-rc
    branch after development for the 4.17 merge window had already started
    being taken into the for-next branch, there were fairly non-trivial
    merge issues that would need to be resolved between the for-rc branch
    and the for-next branch.  This merge resolves those conflicts and
    provides a unified base upon which ongoing development for 4.17 can
    be based.

    Conflicts:
            drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f95
            (IB/mlx5: Fix cleanup order on unload) added to for-rc and
            commit b5ca15ad7e (IB/mlx5: Add proper representors support)
            add as part of the devel cycle both needed to modify the
            init/de-init functions used by mlx5.  To support the new
            representors, the new functions added by the cleanup patch
            needed to be made non-static, and the init/de-init list
            added by the representors patch needed to be modified to
            match the init/de-init list changes made by the cleanup
            patch.
    Updates:
            drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function
            prototypes added by representors patch to reflect new function
            names as changed by cleanup patch
            drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init
            stage list to match new order from cleanup patch
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-23 11:31:58 -04:00
Kirill Tkhai
5796ef75ec net: Make ip_ra_chain per struct net
This is optimization, which makes ip_call_ra_chain()
iterate less sockets to find the sockets it's looking for.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-22 15:12:56 -04:00