Commit Graph

57874 Commits

Author SHA1 Message Date
Tao Huang
439d4e9999 Merge tag 'ASB-2020-11-05_4.19-stable' of https://android.googlesource.com/kernel/common
https://source.android.com/security/bulletin/2020-11-01
CVE-2020-0423

* tag 'ASB-2020-11-05_4.19-stable': (529 commits)
  ANDROID: GKI: Enable DEBUG_INFO_DWARF4
  UPSTREAM: mm/sl[uo]b: export __kmalloc_track(_node)_caller
  BACKPORT: xfrm/compat: Translate 32-bit user_policy from sockptr
  BACKPORT: xfrm/compat: Add 32=>64-bit messages translator
  UPSTREAM: xfrm/compat: Attach xfrm dumps to 64=>32 bit translator
  UPSTREAM: xfrm/compat: Add 64=>32-bit messages translator
  BACKPORT: xfrm: Provide API to register translator module
  ANDROID: Publish uncompressed Image on aarch64
  FROMLIST: crypto: arm64/poly1305-neon - reorder PAC authentication with SP update
  UPSTREAM: crypto: arm64/chacha - fix chacha_4block_xor_neon() for big endian
  UPSTREAM: crypto: arm64/chacha - fix hchacha_block_neon() for big endian
  Linux 4.19.154
  usb: gadget: f_ncm: allow using NCM in SuperSpeed Plus gadgets.
  eeprom: at25: set minimum read/write access stride to 1
  USB: cdc-wdm: Make wdm_flush() interruptible and add wdm_fsync().
  usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
  tty: serial: fsl_lpuart: fix lpuart32_poll_get_char
  net: korina: cast KSEG0 address to pointer in kfree
  ath10k: check idx validity in __ath10k_htt_rx_ring_fill_n()
  scsi: ufs: ufs-qcom: Fix race conditions caused by ufs_qcom_testbus_config()
  ...

Change-Id: I797efa1149f557c1dfab7856813cc40d1a4d60b2

Conflicts:
	drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
	mm/page_alloc.c
2020-11-03 18:36:42 +08:00
Dmitry Safonov
0f1aab4b37 BACKPORT: xfrm/compat: Translate 32-bit user_policy from sockptr
Provide compat_xfrm_userpolicy_info translation for xfrm setsocketopt().
Reallocate buffer and put the missing padding for 64-bit message.

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit 96392ee5a1)
[adelva: Edited around removed compat check in Android kernels]
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: I32a6495cd92fa13c956fca88aa5d80716155b8ae
2020-11-01 20:38:04 -08:00
Dmitry Safonov
77d2c7b99a BACKPORT: xfrm/compat: Add 32=>64-bit messages translator
Provide the user-to-kernel translator under XFRM_USER_COMPAT, that
creates for 32-bit xfrm-user message a 64-bit translation.
The translation is afterwards reused by xfrm_user code just as if
userspace had sent 64-bit message.

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit 5106f4a8ac)
[adelva: nlmsg_parse_deprecated -> nlmsg_parse]
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: If15999b86e4704b75307fbcc3d7f0c8d8bc89e7a
2020-11-01 17:06:09 +00:00
Dmitry Safonov
0a601af04b UPSTREAM: xfrm/compat: Attach xfrm dumps to 64=>32 bit translator
Currently nlmsg_unicast() is used by functions that dump structures that
can be different in size for compat tasks, see dump_one_state() and
dump_one_policy().

The following nlmsg_unicast() users exist today in xfrm:

         Function                          |    Message can be different
                                           |       in size on compat
-------------------------------------------|------------------------------
    xfrm_get_spdinfo()                     |               N
    xfrm_get_sadinfo()                     |               N
    xfrm_get_sa()                          |               Y
    xfrm_alloc_userspi()                   |               Y
    xfrm_get_policy()                      |               Y
    xfrm_get_ae()                          |               N

Besides, dump_one_state() and dump_one_policy() can be used by filtered
netlink dump for XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY.

Just as for xfrm multicast, allocate frag_list for compat skb journey
down to recvmsg() which will give user the desired skb according to
syscall bitness.

Signed-off-by: Dmitry Safonov <dima@arista.com>

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit 5f3eea6b7e)
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: Id1a606ddd9d7dfe73a448eeb252b1bfd8dbd2fcb
2020-11-01 17:05:59 +00:00
Dmitry Safonov
00260df47d UPSTREAM: xfrm/compat: Add 64=>32-bit messages translator
Provide the kernel-to-user translator under XFRM_USER_COMPAT, that
creates for 64-bit xfrm-user message a 32-bit translation and puts it
in skb's frag_list. net/compat.c layer provides MSG_CMSG_COMPAT to
decide if the message should be taken from skb or frag_list.
(used by wext-core which has also an ABI difference)

Kernel sends 64-bit xfrm messages to the userspace for:
- multicast (monitor events)
- netlink dumps

Wire up the translator to xfrm_nlmsg_multicast().

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit 5461fc0c8d)
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: Id8b59587d60feb9b9f0ce96be9d140d694573fe3
2020-11-01 17:05:51 +00:00
Dmitry Safonov
9ae4da45c5 BACKPORT: xfrm: Provide API to register translator module
Add a skeleton for xfrm_compat module and provide API to register it in
xfrm_state.ko. struct xfrm_translator will have function pointers to
translate messages received from 32-bit userspace or to be sent to it
from 64-bit kernel.
module_get()/module_put() are used instead of rcu_read_lock() as the
module will vmalloc() memory for translation.
The new API is registered with xfrm_state module, not with xfrm_user as
the former needs translator for user_policy set by setsockopt() and
xfrm_user already uses functions from xfrm_state.

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit c9e7c76d70)
[adelva: Edited around some context changes]
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: Ic825c6a0367fa192cc3f7af6b7d2682ef8f9d58b
2020-11-01 17:05:43 +00:00
Greg Kroah-Hartman
ac43e7e5e4 This is the 4.19.154 stable release
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Merge 4.19.154 into android-4.19-stable

Changes in 4.19.154
	powerpc/tau: Check processor type before enabling TAU interrupt
	powerpc/tau: Disable TAU between measurements
	powerpc/64s/radix: Fix mm_cpumask trimming race vs kthread_use_mm
	RDMA/cma: Remove dead code for kernel rdmacm multicast
	RDMA/cma: Consolidate the destruction of a cma_multicast in one place
	perf intel-pt: Fix "context_switch event has no tid" error
	RDMA/hns: Set the unsupported wr opcode
	RDMA/hns: Fix missing sq_sig_type when querying QP
	kdb: Fix pager search for multi-line strings
	overflow: Include header file with SIZE_MAX declaration
	powerpc/perf: Exclude pmc5/6 from the irrelevant PMU group constraints
	powerpc/perf/hv-gpci: Fix starting index value
	cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_reboot_notifier
	IB/rdmavt: Fix sizeof mismatch
	f2fs: wait for sysfs kobject removal before freeing f2fs_sb_info
	lib/crc32.c: fix trivial typo in preprocessor condition
	ramfs: fix nommu mmap with gaps in the page cache
	rapidio: fix error handling path
	rapidio: fix the missed put_device() for rio_mport_add_riodev
	mailbox: avoid timer start from callback
	i2c: rcar: Auto select RESET_CONTROLLER
	PCI: iproc: Set affinity mask on MSI interrupts
	rpmsg: smd: Fix a kobj leak in in qcom_smd_parse_edge()
	pwm: img: Fix null pointer access in probe
	clk: rockchip: Initialize hw to error to avoid undefined behavior
	clk: at91: clk-main: update key before writing AT91_CKGR_MOR
	clk: bcm2835: add missing release if devm_clk_hw_register fails
	watchdog: Fix memleak in watchdog_cdev_register
	watchdog: Use put_device on error
	watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3
	svcrdma: fix bounce buffers for unaligned offsets and multiple pages
	ext4: limit entries returned when counting fsmap records
	vfio/pci: Clear token on bypass registration failure
	vfio iommu type1: Fix memory leak in vfio_iommu_type1_pin_pages
	SUNRPC: fix copying of multiple pages in gss_read_proxy_verf()
	Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()
	Input: stmfts - fix a & vs && typo
	Input: ep93xx_keypad - fix handling of platform_get_irq() error
	Input: omap4-keypad - fix handling of platform_get_irq() error
	Input: twl4030_keypad - fix handling of platform_get_irq() error
	Input: sun4i-ps2 - fix handling of platform_get_irq() error
	KVM: x86: emulating RDPID failure shall return #UD rather than #GP
	netfilter: conntrack: connection timeout after re-register
	netfilter: nf_fwd_netdev: clear timestamp in forwarding path
	ARM: dts: imx6sl: fix rng node
	ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix dcdc1 regulator
	memory: omap-gpmc: Fix a couple off by ones
	memory: omap-gpmc: Fix build error without CONFIG_OF
	memory: fsl-corenet-cf: Fix handling of platform_get_irq() error
	arm64: dts: qcom: pm8916: Remove invalid reg size from wcd_codec
	arm64: dts: qcom: msm8916: Fix MDP/DSI interrupts
	ARM: dts: owl-s500: Fix incorrect PPI interrupt specifiers
	arm64: dts: zynqmp: Remove additional compatible string for i2c IPs
	powerpc/powernv/dump: Fix race while processing OPAL dump
	nvmet: fix uninitialized work for zero kato
	NTB: hw: amd: fix an issue about leak system resources
	sched/features: Fix !CONFIG_JUMP_LABEL case
	perf: correct SNOOPX field offset
	i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs
	block: ratelimit handle_bad_sector() message
	crypto: ccp - fix error handling
	media: firewire: fix memory leak
	media: ati_remote: sanity check for both endpoints
	media: st-delta: Fix reference count leak in delta_run_work
	media: sti: Fix reference count leaks
	media: exynos4-is: Fix several reference count leaks due to pm_runtime_get_sync
	media: exynos4-is: Fix a reference count leak due to pm_runtime_get_sync
	media: exynos4-is: Fix a reference count leak
	media: vsp1: Fix runtime PM imbalance on error
	media: platform: s3c-camif: Fix runtime PM imbalance on error
	media: platform: sti: hva: Fix runtime PM imbalance on error
	media: bdisp: Fix runtime PM imbalance on error
	media: media/pci: prevent memory leak in bttv_probe
	media: uvcvideo: Ensure all probed info is returned to v4l2
	mmc: sdio: Check for CISTPL_VERS_1 buffer size
	media: saa7134: avoid a shift overflow
	fs: dlm: fix configfs memory leak
	media: venus: core: Fix runtime PM imbalance in venus_probe
	ntfs: add check for mft record size in superblock
	ip_gre: set dev->hard_header_len and dev->needed_headroom properly
	mac80211: handle lack of sband->bitrates in rates
	PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
	scsi: mvumi: Fix error return in mvumi_io_attach()
	scsi: target: core: Add CONTROL field for trace events
	mic: vop: copy data to kernel space then write to io memory
	misc: vop: add round_up(x,4) for vring_size to avoid kernel panic
	usb: gadget: function: printer: fix use-after-free in __lock_acquire
	udf: Limit sparing table size
	udf: Avoid accessing uninitialized data on failed inode read
	USB: cdc-acm: handle broken union descriptors
	usb: dwc3: simple: add support for Hikey 970
	can: flexcan: flexcan_chip_stop(): add error handling and propagate error value
	ath9k: hif_usb: fix race condition between usb_get_urb() and usb_kill_anchored_urbs()
	misc: rtsx: Fix memory leak in rtsx_pci_probe
	reiserfs: only call unlock_new_inode() if I_NEW
	xfs: make sure the rt allocator doesn't run off the end
	usb: ohci: Default to per-port over-current protection
	Bluetooth: Only mark socket zapped after unlocking
	scsi: ibmvfc: Fix error return in ibmvfc_probe()
	brcmsmac: fix memory leak in wlc_phy_attach_lcnphy
	rtl8xxxu: prevent potential memory leak
	Fix use after free in get_capset_info callback.
	scsi: qedi: Protect active command list to avoid list corruption
	scsi: qedi: Fix list_del corruption while removing active I/O
	tty: ipwireless: fix error handling
	ipvs: Fix uninit-value in do_ip_vs_set_ctl()
	reiserfs: Fix memory leak in reiserfs_parse_options()
	mwifiex: don't call del_timer_sync() on uninitialized timer
	brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach
	usb: core: Solve race condition in anchor cleanup functions
	scsi: ufs: ufs-qcom: Fix race conditions caused by ufs_qcom_testbus_config()
	ath10k: check idx validity in __ath10k_htt_rx_ring_fill_n()
	net: korina: cast KSEG0 address to pointer in kfree
	tty: serial: fsl_lpuart: fix lpuart32_poll_get_char
	usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
	USB: cdc-wdm: Make wdm_flush() interruptible and add wdm_fsync().
	eeprom: at25: set minimum read/write access stride to 1
	usb: gadget: f_ncm: allow using NCM in SuperSpeed Plus gadgets.
	Linux 4.19.154

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I242a1afee6c5297423afd0f11e81f9a9f14ded77
2020-10-30 11:43:26 +01:00
Peilin Ye
796f0d39dc ipvs: Fix uninit-value in do_ip_vs_set_ctl()
[ Upstream commit c5a8a8498e ]

do_ip_vs_set_ctl() is referencing uninitialized stack value when `len` is
zero. Fix it.

Reported-by: syzbot+23b5f9e7caf61d9a3898@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=46ebfb92a8a812621a001ef04d90dfa459520fe2
Suggested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:31 +01:00
Abhishek Pandit-Subedi
738315384e Bluetooth: Only mark socket zapped after unlocking
[ Upstream commit 20ae4089d0 ]

Since l2cap_sock_teardown_cb doesn't acquire the channel lock before
setting the socket as zapped, it could potentially race with
l2cap_sock_release which frees the socket. Thus, wait until the cleanup
is complete before marking the socket as zapped.

This race was reproduced on a JBL GO speaker after the remote device
rejected L2CAP connection due to resource unavailability.

Here is a dmesg log with debug logs from a repro of this bug:
[ 3465.424086] Bluetooth: hci_core.c:hci_acldata_packet() hci0 len 16 handle 0x0003 flags 0x0002
[ 3465.424090] Bluetooth: hci_conn.c:hci_conn_enter_active_mode() hcon 00000000cfedd07d mode 0
[ 3465.424094] Bluetooth: l2cap_core.c:l2cap_recv_acldata() conn 000000007eae8952 len 16 flags 0x2
[ 3465.424098] Bluetooth: l2cap_core.c:l2cap_recv_frame() len 12, cid 0x0001
[ 3465.424102] Bluetooth: l2cap_core.c:l2cap_raw_recv() conn 000000007eae8952
[ 3465.424175] Bluetooth: l2cap_core.c:l2cap_sig_channel() code 0x03 len 8 id 0x0c
[ 3465.424180] Bluetooth: l2cap_core.c:l2cap_connect_create_rsp() dcid 0x0045 scid 0x0000 result 0x02 status 0x00
[ 3465.424189] Bluetooth: l2cap_core.c:l2cap_chan_put() chan 000000006acf9bff orig refcnt 4
[ 3465.424196] Bluetooth: l2cap_core.c:l2cap_chan_del() chan 000000006acf9bff, conn 000000007eae8952, err 111, state BT_CONNECT
[ 3465.424203] Bluetooth: l2cap_sock.c:l2cap_sock_teardown_cb() chan 000000006acf9bff state BT_CONNECT
[ 3465.424221] Bluetooth: l2cap_core.c:l2cap_chan_put() chan 000000006acf9bff orig refcnt 3
[ 3465.424226] Bluetooth: hci_core.h:hci_conn_drop() hcon 00000000cfedd07d orig refcnt 6
[ 3465.424234] BUG: spinlock bad magic on CPU#2, kworker/u17:0/159
[ 3465.425626] Bluetooth: hci_sock.c:hci_sock_sendmsg() sock 000000002bb0cb64 sk 00000000a7964053
[ 3465.430330]  lock: 0xffffff804410aac0, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[ 3465.430332] Causing a watchdog bite!

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reported-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Reviewed-by: Manish Mandlik <mmandlik@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:30 +01:00
Thomas Pedersen
20ae51a368 mac80211: handle lack of sband->bitrates in rates
[ Upstream commit 8b783d104e ]

Even though a driver or mac80211 shouldn't produce a
legacy bitrate if sband->bitrates doesn't exist, don't
crash if that is the case either.

This fixes a kernel panic if station dump is run before
last_rate can be updated with a data frame when
sband->bitrates is missing (eg. in S1G bands).

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20201005164522.18069-1-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:28 +01:00
Cong Wang
cd3ecf114c ip_gre: set dev->hard_header_len and dev->needed_headroom properly
[ Upstream commit fdafed4599 ]

GRE tunnel has its own header_ops, ipgre_header_ops, and sets it
conditionally. When it is set, it assumes the outer IP header is
already created before ipgre_xmit().

This is not true when we send packets through a raw packet socket,
where L2 headers are supposed to be constructed by user. Packet
socket calls dev_validate_header() to validate the header. But
GRE tunnel does not set dev->hard_header_len, so that check can
be simply bypassed, therefore uninit memory could be passed down
to ipgre_xmit(). Similar for dev->needed_headroom.

dev->hard_header_len is supposed to be the length of the header
created by dev->header_ops->create(), so it should be used whenever
header_ops is set, and dev->needed_headroom should be used when it
is not set.

Reported-and-tested-by: syzbot+4a2c52677a8a1aa283cb@syzkaller.appspotmail.com
Cc: William Tu <u9012063@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:28 +01:00
Pablo Neira Ayuso
be6992b68b netfilter: nf_fwd_netdev: clear timestamp in forwarding path
[ Upstream commit c77761c8a5 ]

Similar to 7980d2eabd ("ipvs: clear skb->tstamp in forwarding path").
fq qdisc requires tstamp to be cleared in forwarding path.

Fixes: 8203e2d844 ("net: clear skb->tstamp in forwarding paths")
Fixes: fb420d5d91 ("tcp/fq: move back to CLOCK_MONOTONIC")
Fixes: 80b14dee2b ("net: Add a new socket option for a future transmit time.")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:24 +01:00
Francesco Ruggeri
b221c4a1f8 netfilter: conntrack: connection timeout after re-register
[ Upstream commit 4f25434bcc ]

If the first packet conntrack sees after a re-register is an outgoing
keepalive packet with no data (SEG.SEQ = SND.NXT-1), td_end is set to
SND.NXT-1.
When the peer correctly acknowledges SND.NXT, tcp_in_window fails
check III (Upper bound for valid (s)ack: sack <= receiver.td_end) and
returns false, which cascades into nf_conntrack_in setting
skb->_nfct = 0 and in later conntrack iptables rules not matching.
In cases where iptables are dropping packets that do not match
conntrack rules this can result in idle tcp connections to time out.

v2: adjust td_end when getting the reply rather than when sending out
    the keepalive packet.

Fixes: f94e63801a ("netfilter: conntrack: reset tcp maxwin on re-register")
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:24 +01:00
Martijn de Gouw
af74b4a25f SUNRPC: fix copying of multiple pages in gss_read_proxy_verf()
[ Upstream commit d48c812474 ]

When the passed token is longer than 4032 bytes, the remaining part
of the token must be copied from the rqstp->rq_arg.pages. But the
copy must make sure it happens in a consecutive way.

With the existing code, the first memcpy copies 'length' bytes from
argv->iobase, but since the header is in front, this never fills the
whole first page of in_token->pages.

The mecpy in the loop copies the following bytes, but starts writing at
the next page of in_token->pages.  This leaves the last bytes of page 0
unwritten.

Symptoms were that users with many groups were not able to access NFS
exports, when using Active Directory as the KDC.

Signed-off-by: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>
Fixes: 5866efa8cb "SUNRPC: Fix svcauth_gss_proxy_init()"
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:23 +01:00
Dan Aloni
95e7b4ee3d svcrdma: fix bounce buffers for unaligned offsets and multiple pages
[ Upstream commit c327a310ec ]

This was discovered using O_DIRECT at the client side, with small
unaligned file offsets or IOs that span multiple file pages.

Fixes: e248aa7be8 ("svcrdma: Remove max_sge check at connect time")
Signed-off-by: Dan Aloni <dan@kernelim.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:22 +01:00
Greg Kroah-Hartman
b9a942466b This is the 4.19.153 stable release
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Merge 4.19.153 into android-4.19-stable

Changes in 4.19.153
	ibmveth: Switch order of ibmveth_helper calls.
	ibmveth: Identify ingress large send packets.
	ipv4: Restore flowi4_oif update before call to xfrm_lookup_route
	mlx4: handle non-napi callers to napi_poll
	net: fec: Fix phy_device lookup for phy_reset_after_clk_enable()
	net: fec: Fix PHY init after phy_reset_after_clk_enable()
	net: fix pos incrementment in ipv6_route_seq_next
	net/smc: fix valid DMBE buffer sizes
	net: usb: qmi_wwan: add Cellient MPL200 card
	tipc: fix the skb_unshare() in tipc_buf_append()
	net/ipv4: always honour route mtu during forwarding
	r8169: fix data corruption issue on RTL8402
	net/tls: sendfile fails with ktls offload
	binder: fix UAF when releasing todo list
	ALSA: bebob: potential info leak in hwdep_read()
	chelsio/chtls: fix socket lock
	chelsio/chtls: correct netdevice for vlan interface
	chelsio/chtls: correct function return and return type
	net: hdlc: In hdlc_rcv, check to make sure dev is an HDLC device
	net: hdlc_raw_eth: Clear the IFF_TX_SKB_SHARING flag after calling ether_setup
	net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels
	nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download()
	tcp: fix to update snd_wl1 in bulk receiver fast path
	r8169: fix operation under forced interrupt threading
	icmp: randomize the global rate limiter
	ALSA: hda/realtek: Enable audio jacks of ASUS D700SA with ALC887
	cifs: remove bogus debug code
	cifs: Return the error from crypt_message when enc/dec key not found.
	KVM: x86/mmu: Commit zap of remaining invalid pages when recovering lpages
	KVM: SVM: Initialize prev_ga_tag before use
	ima: Don't ignore errors from crypto_shash_update()
	crypto: algif_aead - Do not set MAY_BACKLOG on the async path
	EDAC/i5100: Fix error handling order in i5100_init_one()
	EDAC/ti: Fix handling of platform_get_irq() error
	x86/fpu: Allow multiple bits in clearcpuid= parameter
	drivers/perf: xgene_pmu: Fix uninitialized resource struct
	x86/nmi: Fix nmi_handle() duration miscalculation
	x86/events/amd/iommu: Fix sizeof mismatch
	crypto: algif_skcipher - EBUSY on aio should be an error
	crypto: mediatek - Fix wrong return value in mtk_desc_ring_alloc()
	crypto: ixp4xx - Fix the size used in a 'dma_free_coherent()' call
	crypto: picoxcell - Fix potential race condition bug
	media: tuner-simple: fix regression in simple_set_radio_freq
	media: Revert "media: exynos4-is: Add missed check for pinctrl_lookup_state()"
	media: m5mols: Check function pointer in m5mols_sensor_power
	media: uvcvideo: Set media controller entity functions
	media: uvcvideo: Silence shift-out-of-bounds warning
	media: omap3isp: Fix memleak in isp_probe
	crypto: omap-sham - fix digcnt register handling with export/import
	hwmon: (pmbus/max34440) Fix status register reads for MAX344{51,60,61}
	cypto: mediatek - fix leaks in mtk_desc_ring_alloc
	media: mx2_emmaprp: Fix memleak in emmaprp_probe
	media: tc358743: initialize variable
	media: tc358743: cleanup tc358743_cec_isr
	media: rcar-vin: Fix a reference count leak.
	media: rockchip/rga: Fix a reference count leak.
	media: platform: fcp: Fix a reference count leak.
	media: camss: Fix a reference count leak.
	media: s5p-mfc: Fix a reference count leak
	media: stm32-dcmi: Fix a reference count leak
	media: ti-vpe: Fix a missing check and reference count leak
	regulator: resolve supply after creating regulator
	pinctrl: bcm: fix kconfig dependency warning when !GPIOLIB
	spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath()
	spi: spi-s3c64xx: Check return values
	ath10k: provide survey info as accumulated data
	Bluetooth: hci_uart: Cancel init work before unregistering
	ath6kl: prevent potential array overflow in ath6kl_add_new_sta()
	ath9k: Fix potential out of bounds in ath9k_htc_txcompletion_cb()
	ath10k: Fix the size used in a 'dma_free_coherent()' call in an error handling path
	wcn36xx: Fix reported 802.11n rx_highest rate wcn3660/wcn3680
	ASoC: qcom: lpass-platform: fix memory leak
	ASoC: qcom: lpass-cpu: fix concurrency issue
	brcmfmac: check ndev pointer
	mwifiex: Do not use GFP_KERNEL in atomic context
	staging: rtl8192u: Do not use GFP_KERNEL in atomic context
	drm/gma500: fix error check
	scsi: qla4xxx: Fix an error handling path in 'qla4xxx_get_host_stats()'
	scsi: qla2xxx: Fix wrong return value in qla_nvme_register_hba()
	scsi: csiostor: Fix wrong return value in csio_hw_prep_fw()
	backlight: sky81452-backlight: Fix refcount imbalance on error
	VMCI: check return value of get_user_pages_fast() for errors
	tty: serial: earlycon dependency
	tty: hvcs: Don't NULL tty->driver_data until hvcs_cleanup()
	pty: do tty_flip_buffer_push without port->lock in pty_write
	pwm: lpss: Fix off by one error in base_unit math in pwm_lpss_prepare()
	pwm: lpss: Add range limit check for the base_unit register value
	drivers/virt/fsl_hypervisor: Fix error handling path
	video: fbdev: vga16fb: fix setting of pixclock because a pass-by-value error
	video: fbdev: sis: fix null ptr dereference
	video: fbdev: radeon: Fix memleak in radeonfb_pci_register
	HID: roccat: add bounds checking in kone_sysfs_write_settings()
	pinctrl: mcp23s08: Fix mcp23x17_regmap initialiser
	pinctrl: mcp23s08: Fix mcp23x17 precious range
	net/mlx5: Don't call timecounter cyc2time directly from 1PPS flow
	net: stmmac: use netif_tx_start|stop_all_queues() function
	cpufreq: armada-37xx: Add missing MODULE_DEVICE_TABLE
	net: dsa: rtl8366: Check validity of passed VLANs
	net: dsa: rtl8366: Refactor VLAN/PVID init
	net: dsa: rtl8366: Skip PVID setting if not requested
	net: dsa: rtl8366rb: Support all 4096 VLANs
	ath6kl: wmi: prevent a shift wrapping bug in ath6kl_wmi_delete_pstream_cmd()
	misc: mic: scif: Fix error handling path
	ALSA: seq: oss: Avoid mutex lock for a long-time ioctl
	usb: dwc2: Fix parameter type in function pointer prototype
	quota: clear padding in v2r1_mem2diskdqb()
	slimbus: core: check get_addr before removing laddr ida
	slimbus: core: do not enter to clock pause mode in core
	slimbus: qcom-ngd-ctrl: disable ngd in qmi server down callback
	HID: hid-input: fix stylus battery reporting
	qtnfmac: fix resource leaks on unsupported iftype error return path
	net: enic: Cure the enic api locking trainwreck
	mfd: sm501: Fix leaks in probe()
	iwlwifi: mvm: split a print to avoid a WARNING in ROC
	usb: gadget: f_ncm: fix ncm_bitrate for SuperSpeed and above.
	usb: gadget: u_ether: enable qmult on SuperSpeed Plus as well
	nl80211: fix non-split wiphy information
	usb: dwc2: Fix INTR OUT transfers in DDMA mode.
	scsi: target: tcmu: Fix warning: 'page' may be used uninitialized
	scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
	platform/x86: mlx-platform: Remove PSU EEPROM configuration
	mwifiex: fix double free
	ipvs: clear skb->tstamp in forwarding path
	net: korina: fix kfree of rx/tx descriptor array
	netfilter: nf_log: missing vlan offload tag and proto
	mm/memcg: fix device private memcg accounting
	mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary
	IB/mlx4: Fix starvation in paravirt mux/demux
	IB/mlx4: Adjust delayed work when a dup is observed
	powerpc/pseries: Fix missing of_node_put() in rng_init()
	powerpc/icp-hv: Fix missing of_node_put() in success path
	RDMA/ucma: Fix locking for ctx->events_reported
	RDMA/ucma: Add missing locking around rdma_leave_multicast()
	mtd: lpddr: fix excessive stack usage with clang
	powerpc/pseries: explicitly reschedule during drmem_lmb list traversal
	mtd: mtdoops: Don't write panic data twice
	ARM: 9007/1: l2c: fix prefetch bits init in L2X0_AUX_CTRL using DT values
	arc: plat-hsdk: fix kconfig dependency warning when !RESET_CONTROLLER
	xfs: limit entries returned when counting fsmap records
	xfs: fix high key handling in the rt allocator's query_range function
	RDMA/qedr: Fix use of uninitialized field
	RDMA/qedr: Fix inline size returned for iWARP
	powerpc/tau: Use appropriate temperature sample interval
	powerpc/tau: Convert from timer to workqueue
	powerpc/tau: Remove duplicated set_thresholds() call
	Linux 4.19.153

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9e85e8ca67ab8e28d04a77339f80fdbf3c568956
2020-10-29 11:36:20 +01:00
Pablo Neira Ayuso
d74d61d90b netfilter: nf_log: missing vlan offload tag and proto
[ Upstream commit 0d9826bc18 ]

Dump vlan tag and proto for the usual vlan offload case if the
NF_LOG_MACDECODE flag is set on. Without this information the logging is
misleading as there is no reference to the VLAN header.

[12716.993704] test: IN=veth0 OUT= MACSRC=86:6c:92:ea:d6:73 MACDST=0e:3b:eb:86:73:76 VPROTO=8100 VID=10 MACPROTO=0800 SRC=192.168.10.2 DST=172.217.168.163 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=2548 DF PROTO=TCP SPT=55848 DPT=80 WINDOW=501 RES=0x00 ACK FIN URGP=0
[12721.157643] test: IN=veth0 OUT= MACSRC=86:6c:92:ea:d6:73 MACDST=0e:3b:eb:86:73:76 VPROTO=8100 VID=10 MACPROTO=0806 ARP HTYPE=1 PTYPE=0x0800 OPCODE=2 MACSRC=86:6c:92:ea:d6:73 IPSRC=192.168.10.2 MACDST=0e:3b:eb:86:73:76 IPDST=192.168.10.1

Fixes: 83e96d443b ("netfilter: log: split family specific code to nf_log_{ip,ip6,common}.c files")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29 09:55:15 +01:00
Julian Anastasov
69a117d795 ipvs: clear skb->tstamp in forwarding path
[ Upstream commit 7980d2eabd ]

fq qdisc requires tstamp to be cleared in forwarding path

Reported-by: Evgeny B <abt-admin@mail.ru>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209427
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Fixes: 8203e2d844 ("net: clear skb->tstamp in forwarding paths")
Fixes: fb420d5d91 ("tcp/fq: move back to CLOCK_MONOTONIC")
Fixes: 80b14dee2b ("net: Add a new socket option for a future transmit time.")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29 09:55:14 +01:00
Johannes Berg
60a6d29997 nl80211: fix non-split wiphy information
[ Upstream commit ab10c22bc3 ]

When dumping wiphy information, we try to split the data into
many submessages, but for old userspace we still support the
old mode where this doesn't happen.

However, in this case we were not resetting our state correctly
and dumping multiple messages for each wiphy, which would have
broken such older userspace.

This was broken pretty much immediately afterwards because it
only worked in the original commit where non-split dumps didn't
have any more data than split dumps...

Fixes: fe1abafd94 ("nl80211: re-add channel width and extended capa advertising")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200928130717.3e6d9c6bada2.Ie0f151a8d0d00a8e1e18f6a8c9244dd02496af67@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29 09:55:13 +01:00
Eric Dumazet
d6c552505c icmp: randomize the global rate limiter
[ Upstream commit b38e7819ca ]

Keyu Man reported that the ICMP rate limiter could be used
by attackers to get useful signal. Details will be provided
in an upcoming academic publication.

Our solution is to add some noise, so that the attackers
no longer can get help from the predictable token bucket limiter.

Fixes: 4cdf507d54 ("icmp: add a global rate limitation")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Keyu Man <kman001@ucr.edu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:58 +01:00
Neal Cardwell
7e1c74befe tcp: fix to update snd_wl1 in bulk receiver fast path
[ Upstream commit 18ded910b5 ]

In the header prediction fast path for a bulk data receiver, if no
data is newly acknowledged then we do not call tcp_ack() and do not
call tcp_ack_update_window(). This means that a bulk receiver that
receives large amounts of data can have the incoming sequence numbers
wrap, so that the check in tcp_may_update_window fails:
   after(ack_seq, tp->snd_wl1)

If the incoming receive windows are zero in this state, and then the
connection that was a bulk data receiver later wants to send data,
that connection can find itself persistently rejecting the window
updates in incoming ACKs. This means the connection can persistently
fail to discover that the receive window has opened, which in turn
means that the connection is unable to send anything, and the
connection's sending process can get permanently "stuck".

The fix is to update snd_wl1 in the header prediction fast path for a
bulk data receiver, so that it keeps up and does not see wrapping
problems.

This fix is based on a very nice and thorough analysis and diagnosis
by Apollon Oikonomopoulos (see link below).

This is a stable candidate but there is no Fixes tag here since the
bug predates current git history. Just for fun: looks like the bug
dates back to when header prediction was added in Linux v2.1.8 in Nov
1996. In that version tcp_rcv_established() was added, and the code
only updates snd_wl1 in tcp_ack(), and in the new "Bulk data transfer:
receiver" code path it does not call tcp_ack(). This fix seems to
apply cleanly at least as far back as v3.2.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Reported-by: Apollon Oikonomopoulos <apoikos@dmesg.gr>
Tested-by: Apollon Oikonomopoulos <apoikos@dmesg.gr>
Link: https://www.spinics.net/lists/netdev/msg692430.html
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20201022143331.1887495-1-ncardwell.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:58 +01:00
Defang Bo
e75f421a8d nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download()
[ Upstream commit 280e3ebdaf ]

Check that the NFC_ATTR_FIRMWARE_NAME attributes are provided by
the netlink client prior to accessing them.This prevents potential
unhandled NULL pointer dereference exceptions which can be triggered
by malicious user-mode programs, if they omit one or both of these
attributes.

Similar to commit a0323b979f ("nfc: Ensure presence of required attributes in the activate_target handler").

Fixes: 9674da8759 ("NFC: Add firmware upload netlink command")
Signed-off-by: Defang Bo <bodefang@126.com>
Link: https://lore.kernel.org/r/1603107538-4744-1-git-send-email-bodefang@126.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:58 +01:00
Davide Caratti
a298ba5e7d net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels
[ Upstream commit a7a12b5a0f ]

the following command

 # tc action add action tunnel_key \
 > set src_ip 2001:db8::1 dst_ip 2001:db8::2 id 10 erspan_opts 1:6789:0:0

generates the following splat:

 BUG: KASAN: slab-out-of-bounds in tunnel_key_copy_opts+0xcc9/0x1010 [act_tunnel_key]
 Write of size 4 at addr ffff88813f5f1cc8 by task tc/873

 CPU: 2 PID: 873 Comm: tc Not tainted 5.9.0+ #282
 Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
 Call Trace:
  dump_stack+0x99/0xcb
  print_address_description.constprop.7+0x1e/0x230
  kasan_report.cold.13+0x37/0x7c
  tunnel_key_copy_opts+0xcc9/0x1010 [act_tunnel_key]
  tunnel_key_init+0x160c/0x1f40 [act_tunnel_key]
  tcf_action_init_1+0x5b5/0x850
  tcf_action_init+0x15d/0x370
  tcf_action_add+0xd9/0x2f0
  tc_ctl_action+0x29b/0x3a0
  rtnetlink_rcv_msg+0x341/0x8d0
  netlink_rcv_skb+0x120/0x380
  netlink_unicast+0x439/0x630
  netlink_sendmsg+0x719/0xbf0
  sock_sendmsg+0xe2/0x110
  ____sys_sendmsg+0x5ba/0x890
  ___sys_sendmsg+0xe9/0x160
  __sys_sendmsg+0xd3/0x170
  do_syscall_64+0x33/0x40
  entry_SYSCALL_64_after_hwframe+0x44/0xa9
 RIP: 0033:0x7f872a96b338
 Code: 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 25 43 2c 00 8b 00 85 c0 75 17 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 41 89 d4 55
 RSP: 002b:00007ffffe367518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
 RAX: ffffffffffffffda RBX: 000000005f8f5aed RCX: 00007f872a96b338
 RDX: 0000000000000000 RSI: 00007ffffe367580 RDI: 0000000000000003
 RBP: 0000000000000000 R08: 0000000000000001 R09: 000000000000001c
 R10: 000000000000000b R11: 0000000000000246 R12: 0000000000000001
 R13: 0000000000686760 R14: 0000000000000601 R15: 0000000000000000

 Allocated by task 873:
  kasan_save_stack+0x19/0x40
  __kasan_kmalloc.constprop.7+0xc1/0xd0
  __kmalloc+0x151/0x310
  metadata_dst_alloc+0x20/0x40
  tunnel_key_init+0xfff/0x1f40 [act_tunnel_key]
  tcf_action_init_1+0x5b5/0x850
  tcf_action_init+0x15d/0x370
  tcf_action_add+0xd9/0x2f0
  tc_ctl_action+0x29b/0x3a0
  rtnetlink_rcv_msg+0x341/0x8d0
  netlink_rcv_skb+0x120/0x380
  netlink_unicast+0x439/0x630
  netlink_sendmsg+0x719/0xbf0
  sock_sendmsg+0xe2/0x110
  ____sys_sendmsg+0x5ba/0x890
  ___sys_sendmsg+0xe9/0x160
  __sys_sendmsg+0xd3/0x170
  do_syscall_64+0x33/0x40
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

 The buggy address belongs to the object at ffff88813f5f1c00
  which belongs to the cache kmalloc-256 of size 256
 The buggy address is located 200 bytes inside of
  256-byte region [ffff88813f5f1c00, ffff88813f5f1d00)
 The buggy address belongs to the page:
 page:0000000011b48a19 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x13f5f0
 head:0000000011b48a19 order:1 compound_mapcount:0
 flags: 0x17ffffc0010200(slab|head)
 raw: 0017ffffc0010200 0000000000000000 0000000d00000001 ffff888107c43400
 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
 page dumped because: kasan: bad access detected

 Memory state around the buggy address:
  ffff88813f5f1b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
  ffff88813f5f1c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 >ffff88813f5f1c80: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
                                               ^
  ffff88813f5f1d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
  ffff88813f5f1d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

using IPv6 tunnels, act_tunnel_key allocates a fixed amount of memory for
the tunnel metadata, but then it expects additional bytes to store tunnel
specific metadata with tunnel_key_copy_opts().

Fix the arguments of __ipv6_tun_set_dst(), so that 'md_size' contains the
size previously computed by tunnel_key_get_opts_len(), like it's done for
IPv4 tunnels.

Fixes: 0ed5269f9e ("net/sched: add tunnel option support to act_tunnel_key")
Reported-by: Shuang Li <shuali@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://lore.kernel.org/r/36ebe969f6d13ff59912d6464a4356fe6f103766.1603231100.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:58 +01:00
Rohit Maheshwari
b2d31640d4 net/tls: sendfile fails with ktls offload
[ Upstream commit ea1dd3e9d0 ]

At first when sendpage gets called, if there is more data, 'more' in
tls_push_data() gets set which later sets pending_open_record_frags, but
when there is no more data in file left, and last time tls_push_data()
gets called, pending_open_record_frags doesn't get reset. And later when
2 bytes of encrypted alert comes as sendmsg, it first checks for
pending_open_record_frags, and since this is set, it creates a record with
0 data bytes to encrypt, meaning record length is prepend_size + tag_size
only, which causes problem.
 We should set/reset pending_open_record_frags based on more bit.

Fixes: e8f6979981 ("net/tls: Add generic NIC offload infrastructure")
Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:56 +01:00
Cong Wang
26217e062f tipc: fix the skb_unshare() in tipc_buf_append()
[ Upstream commit ed42989eab ]

skb_unshare() drops a reference count on the old skb unconditionally,
so in the failure case, we end up freeing the skb twice here.
And because the skb is allocated in fclone and cloned by caller
tipc_msg_reassemble(), the consequence is actually freeing the
original skb too, thus triggered the UAF by syzbot.

Fix this by replacing this skb_unshare() with skb_cloned()+skb_copy().

Fixes: ff48b6222e ("tipc: use skb_unshare() instead in tipc_buf_append()")
Reported-and-tested-by: syzbot+e96a7ba46281824cc46a@syzkaller.appspotmail.com
Cc: Jon Maloy <jmaloy@redhat.com>
Cc: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:56 +01:00
Karsten Graul
0cca96df37 net/smc: fix valid DMBE buffer sizes
[ Upstream commit ef12ad4588 ]

The SMCD_DMBE_SIZES should include all valid DMBE buffer sizes, so the
correct value is 6 which means 1MB. With 7 the registration of an ISM
buffer would always fail because of the invalid size requested.
Fix that and set the value to 6.

Fixes: c6ba7c9ba4 ("net/smc: add base infrastructure for SMC-D and ISM")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:55 +01:00
Yonghong Song
6b00f0321c net: fix pos incrementment in ipv6_route_seq_next
[ Upstream commit 6617dfd440 ]

Commit 4fc427e051 ("ipv6_route_seq_next should increase position index")
tried to fix the issue where seq_file pos is not increased
if a NULL element is returned with seq_ops->next(). See bug
  https://bugzilla.kernel.org/show_bug.cgi?id=206283
The commit effectively does:
  - increase pos for all seq_ops->start()
  - increase pos for all seq_ops->next()

For ipv6_route, increasing pos for all seq_ops->next() is correct.
But increasing pos for seq_ops->start() is not correct
since pos is used to determine how many items to skip during
seq_ops->start():
  iter->skip = *pos;
seq_ops->start() just fetches the *current* pos item.
The item can be skipped only after seq_ops->show() which essentially
is the beginning of seq_ops->next().

For example, I have 7 ipv6 route entries,
  root@arch-fb-vm1:~/net-next dd if=/proc/net/ipv6_route bs=4096
  00000000000000000000000000000000 40 00000000000000000000000000000000 00 00000000000000000000000000000000 00000400 00000001 00000000 00000001     eth0
  fe800000000000000000000000000000 40 00000000000000000000000000000000 00 00000000000000000000000000000000 00000100 00000001 00000000 00000001     eth0
  00000000000000000000000000000000 00 00000000000000000000000000000000 00 00000000000000000000000000000000 ffffffff 00000001 00000000 00200200       lo
  00000000000000000000000000000001 80 00000000000000000000000000000000 00 00000000000000000000000000000000 00000000 00000003 00000000 80200001       lo
  fe800000000000002050e3fffebd3be8 80 00000000000000000000000000000000 00 00000000000000000000000000000000 00000000 00000002 00000000 80200001     eth0
  ff000000000000000000000000000000 08 00000000000000000000000000000000 00 00000000000000000000000000000000 00000100 00000004 00000000 00000001     eth0
  00000000000000000000000000000000 00 00000000000000000000000000000000 00 00000000000000000000000000000000 ffffffff 00000001 00000000 00200200       lo
  0+1 records in
  0+1 records out
  1050 bytes (1.0 kB, 1.0 KiB) copied, 0.00707908 s, 148 kB/s
  root@arch-fb-vm1:~/net-next

In the above, I specify buffer size 4096, so all records can be returned
to user space with a single trip to the kernel.

If I use buffer size 128, since each record size is 149, internally
kernel seq_read() will read 149 into its internal buffer and return the data
to user space in two read() syscalls. Then user read() syscall will trigger
next seq_ops->start(). Since the current implementation increased pos even
for seq_ops->start(), it will skip record #2, #4 and #6, assuming the first
record is #1.

  root@arch-fb-vm1:~/net-next dd if=/proc/net/ipv6_route bs=128
  00000000000000000000000000000000 40 00000000000000000000000000000000 00 00000000000000000000000000000000 00000400 00000001 00000000 00000001     eth0
  00000000000000000000000000000000 00 00000000000000000000000000000000 00 00000000000000000000000000000000 ffffffff 00000001 00000000 00200200       lo
  fe800000000000002050e3fffebd3be8 80 00000000000000000000000000000000 00 00000000000000000000000000000000 00000000 00000002 00000000 80200001     eth0
  00000000000000000000000000000000 00 00000000000000000000000000000000 00 00000000000000000000000000000000 ffffffff 00000001 00000000 00200200       lo
4+1 records in
4+1 records out
600 bytes copied, 0.00127758 s, 470 kB/s

To fix the problem, create a fake pos pointer so seq_ops->start()
won't actually increase seq_file pos. With this fix, the
above `dd` command with `bs=128` will show correct result.

Fixes: 4fc427e051 ("ipv6_route_seq_next should increase position index")
Cc: Alexei Starovoitov <ast@kernel.org>
Suggested-by: Vasily Averin <vvs@virtuozzo.com>
Reviewed-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:55 +01:00
David Ahern
1fecbf3ffd ipv4: Restore flowi4_oif update before call to xfrm_lookup_route
[ Upstream commit 874fb9e2ca ]

Tobias reported regressions in IPsec tests following the patch
referenced by the Fixes tag below. The root cause is dropping the
reset of the flowi4_oif after the fib_lookup. Apparently it is
needed for xfrm cases, so restore the oif update to ip_route_output_flow
right before the call to xfrm_lookup_route.

Fixes: 2fbc6e89b2 ("ipv4: Update exception handling for multipath routes via same device")
Reported-by: Tobias Brunner <tobias@strongswan.org>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29 09:54:55 +01:00
Jason A. Donenfeld
675f727a5d UPSTREAM: net: ip_tunnel: add header_ops for layer 3 devices
Some devices that take straight up layer 3 packets benefit from having a
shared header_ops so that AF_PACKET sockets can inject packets that are
recognized. This shared infrastructure will be used by other drivers
that currently can't inject packets using AF_PACKET. It also exposes the
parser function, as it is useful in standalone form too.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[Jason: no parse_protocol in ip_tunnel_header_ops]
(cherry picked from commit 2606aff916)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib255de1683387e8adfa5042cf11ea004a06cd78f
2020-10-25 13:40:26 +01:00
Jason A. Donenfeld
f34aa80c85 UPSTREAM: icmp: introduce helper for nat'd source address in network device context
This introduces a helper function to be called only by network drivers
that wraps calls to icmp[v6]_send in a conntrack transformation, in case
NAT has been used. We don't want to pollute the non-driver path, though,
so we introduce this as a helper to be called by places that actually
make use of this, as suggested by Florian.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 0b41713b60)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic11fe236d0c404a389017a713b972954ae067439
2020-10-25 11:48:10 +01:00
Greg Kroah-Hartman
13abe23636 This is the 4.19.152 stable release
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Merge 4.19.152 into android-4.19-stable

Changes in 4.19.152
	perf cs-etm: Move definition of 'traceid_list' global variable from header file
	ARM: 8858/1: vdso: use $(LD) instead of $(CC) to link VDSO
	ARM: 8939/1: kbuild: use correct nm executable
	ARM: 8867/1: vdso: pass --be8 to linker if necessary
	Bluetooth: A2MP: Fix not initializing all members
	Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel
	Bluetooth: MGMT: Fix not checking if BT_HS is enabled
	Bluetooth: Consolidate encryption handling in hci_encrypt_cfm
	Bluetooth: Fix update of connection state in `hci_encrypt_cfm`
	Bluetooth: Disconnect if E0 is used for Level 4
	media: usbtv: Fix refcounting mixup
	USB: serial: option: add Cellient MPL200 card
	USB: serial: option: Add Telit FT980-KS composition
	staging: comedi: check validity of wMaxPacketSize of usb endpoints found
	USB: serial: pl2303: add device-id for HP GC device
	USB: serial: ftdi_sio: add support for FreeCalypso JTAG+UART adapters
	reiserfs: Initialize inode keys properly
	reiserfs: Fix oops during mount
	drivers/net/ethernet/marvell/mvmdio.c: Fix non OF case
	crypto: bcm - Verify GCM/CCM key length in setkey
	crypto: qat - check cipher length for aead AES-CBC-HMAC-SHA
	Linux 4.19.152

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I220620fba6634de064782836b2738a9651edd299
2020-10-17 10:26:40 +02:00
Luiz Augusto von Dentz
c1ad9bb3b0 Bluetooth: Disconnect if E0 is used for Level 4
commit 8746f135bb upstream.

E0 is not allowed with Level 4:

BLUETOOTH CORE SPECIFICATION Version 5.2 | Vol 3, Part C page 1319:

  '128-bit equivalent strength for link and encryption keys
   required using FIPS approved algorithms (E0 not allowed,
   SAFER+ not allowed, and P-192 not allowed; encryption key
   not shortened'

SC enabled:

> HCI Event: Read Remote Extended Features (0x23) plen 13
        Status: Success (0x00)
        Handle: 256
        Page: 1/2
        Features: 0x0b 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          Secure Simple Pairing (Host Support)
          LE Supported (Host)
          Secure Connections (Host Support)
> HCI Event: Encryption Change (0x08) plen 4
        Status: Success (0x00)
        Handle: 256
        Encryption: Enabled with AES-CCM (0x02)

SC disabled:

> HCI Event: Read Remote Extended Features (0x23) plen 13
        Status: Success (0x00)
        Handle: 256
        Page: 1/2
        Features: 0x03 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          Secure Simple Pairing (Host Support)
          LE Supported (Host)
> HCI Event: Encryption Change (0x08) plen 4
        Status: Success (0x00)
        Handle: 256
        Encryption: Enabled with E0 (0x01)
[May 8 20:23] Bluetooth: hci0: Invalid security: expect AES but E0 was used
< HCI Command: Disconnect (0x01|0x0006) plen 3
        Handle: 256
        Reason: Authentication Failure (0x05)

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Hans-Christian Noren Egtvedt <hegtvedt@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-17 10:12:57 +02:00
Luiz Augusto von Dentz
0c75831bc1 Bluetooth: Consolidate encryption handling in hci_encrypt_cfm
commit 3ca44c16b0 upstream.

This makes hci_encrypt_cfm calls hci_connect_cfm in case the connection
state is BT_CONFIG so callers don't have to check the state.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Hans-Christian Noren Egtvedt <hegtvedt@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-17 10:12:57 +02:00
Luiz Augusto von Dentz
7b2e80606a Bluetooth: MGMT: Fix not checking if BT_HS is enabled
commit b560a208cd upstream.

This checks if BT_HS is enabled relecting it on MGMT_SETTING_HS instead
of always reporting it as supported.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-17 10:12:57 +02:00
Luiz Augusto von Dentz
360f80e342 Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel
commit f19425641c upstream.

Only sockets will have the chan->data set to an actual sk, channels
like A2MP would have its own data which would likely cause a crash when
calling sk_filter, in order to fix this a new callback has been
introduced so channels can implement their own filtering if necessary.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-17 10:12:56 +02:00
Luiz Augusto von Dentz
128278f444 Bluetooth: A2MP: Fix not initializing all members
commit eddb773211 upstream.

This fixes various places where a stack variable is used uninitialized.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-17 10:12:56 +02:00
Yao Xiao
36a2d0b595 net: rfkill-wlan: support chip alive and add wifi power node
Signed-off-by: Yao Xiao <xiaoyao@rock-chips.com>
Change-Id: I481e415f29840db332381750ad266067f15dbac7
2020-10-15 17:05:34 +08:00
Greg Kroah-Hartman
9f80205d66 This is the 4.19.151 stable release
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Merge 4.19.151 into android-4.19-stable

Changes in 4.19.151
	fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h
	Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts
	fbcon: Fix global-out-of-bounds read in fbcon_get_font()
	Revert "ravb: Fixed to be able to unload modules"
	net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()
	drm/nouveau/mem: guard against NULL pointer access in mem_del
	usermodehelper: reset umask to default before executing user process
	platform/x86: intel-vbtn: Fix SW_TABLET_MODE always reporting 1 on the HP Pavilion 11 x360
	platform/x86: thinkpad_acpi: initialize tp_nvram_state variable
	platform/x86: intel-vbtn: Switch to an allow-list for SW_TABLET_MODE reporting
	platform/x86: thinkpad_acpi: re-initialize ACPI buffer size when reuse
	driver core: Fix probe_count imbalance in really_probe()
	perf top: Fix stdio interface input handling with glibc 2.28+
	i2c: i801: Exclude device from suspend direct complete optimization
	mtd: rawnand: sunxi: Fix the probe error path
	arm64: dts: stratix10: add status to qspi dts node
	nvme-core: put ctrl ref when module ref get fail
	macsec: avoid use-after-free in macsec_handle_frame()
	mm/khugepaged: fix filemap page_to_pgoff(page) != offset
	xfrmi: drop ignore_df check before updating pmtu
	cifs: Fix incomplete memory allocation on setxattr path
	i2c: meson: fix clock setting overwrite
	i2c: meson: fixup rate calculation with filter delay
	i2c: owl: Clear NACK and BUS error bits
	sctp: fix sctp_auth_init_hmacs() error path
	team: set dev->needed_headroom in team_setup_by_port()
	net: team: fix memory leak in __team_options_register
	openvswitch: handle DNAT tuple collision
	drm/amdgpu: prevent double kfree ttm->sg
	xfrm: clone XFRMA_SET_MARK in xfrm_do_migrate
	xfrm: clone XFRMA_REPLAY_ESN_VAL in xfrm_do_migrate
	xfrm: clone XFRMA_SEC_CTX in xfrm_do_migrate
	xfrm: clone whole liftime_cur structure in xfrm_do_migrate
	net: stmmac: removed enabling eee in EEE set callback
	platform/x86: fix kconfig dependency warning for FUJITSU_LAPTOP
	xfrm: Use correct address family in xfrm_state_find
	bonding: set dev->needed_headroom in bond_setup_by_slave()
	mdio: fix mdio-thunder.c dependency & build error
	net: usb: ax88179_178a: fix missing stop entry in driver_info
	net/mlx5e: Fix VLAN cleanup flow
	net/mlx5e: Fix VLAN create flow
	rxrpc: Fix rxkad token xdr encoding
	rxrpc: Downgrade the BUG() for unsupported token type in rxrpc_read()
	rxrpc: Fix some missing _bh annotations on locking conn->state_lock
	rxrpc: Fix server keyring leak
	perf: Fix task_function_call() error handling
	mmc: core: don't set limits.discard_granularity as 0
	mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged
	net: usb: rtl8150: set random MAC address when set_ethernet_addr() fails
	Linux 4.19.151

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9ee2b0fc4fc39f27be6ae680529e1046f249a3e6
2020-10-14 12:11:08 +02:00
David Howells
4b00aa56d0 rxrpc: Fix server keyring leak
[ Upstream commit 38b1dc47a3 ]

If someone calls setsockopt() twice to set a server key keyring, the first
keyring is leaked.

Fix it to return an error instead if the server key keyring is already set.

Fixes: 17926a7932 ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:26 +02:00
David Howells
3995eed6f1 rxrpc: Fix some missing _bh annotations on locking conn->state_lock
[ Upstream commit fa1d113a0f ]

conn->state_lock may be taken in softirq mode, but a previous patch
replaced an outer lock in the response-packet event handling code, and lost
the _bh from that when doing so.

Fix this by applying the _bh annotation to the state_lock locking.

Fixes: a1399f8bb0 ("rxrpc: Call channels should have separate call number spaces")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:26 +02:00
David Howells
4a0b2759c7 rxrpc: Downgrade the BUG() for unsupported token type in rxrpc_read()
[ Upstream commit 9a059cd5ca ]

If rxrpc_read() (which allows KEYCTL_READ to read a key), sees a token of a
type it doesn't recognise, it can BUG in a couple of places, which is
unnecessary as it can easily get back to userspace.

Fix this to print an error message instead.

Fixes: 99455153d0 ("RxRPC: Parse security index 5 keys (Kerberos 5)")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:26 +02:00
Marc Dionne
5de841c5ac rxrpc: Fix rxkad token xdr encoding
[ Upstream commit 56305118e0 ]

The session key should be encoded with just the 8 data bytes and
no length; ENCODE_DATA precedes it with a 4 byte length, which
confuses some existing tools that try to parse this format.

Add an ENCODE_BYTES macro that does not include a length, and use
it for the key.  Also adjust the expected length.

Note that commit 774521f353 ("rxrpc: Fix an assertion in
rxrpc_read()") had fixed a BUG by changing the length rather than
fixing the encoding.  The original length was correct.

Fixes: 99455153d0 ("RxRPC: Parse security index 5 keys (Kerberos 5)")
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:25 +02:00
Herbert Xu
66a675d390 xfrm: Use correct address family in xfrm_state_find
[ Upstream commit e94ee17134 ]

The struct flowi must never be interpreted by itself as its size
depends on the address family.  Therefore it must always be grouped
with its original family value.

In this particular instance, the original family value is lost in
the function xfrm_state_find.  Therefore we get a bogus read when
it's coupled with the wrong family which would occur with inter-
family xfrm states.

This patch fixes it by keeping the original family value.

Note that the same bug could potentially occur in LSM through
the xfrm_state_pol_flow_match hook.  I checked the current code
there and it seems to be safe for now as only secid is used which
is part of struct flowi_common.  But that API should be changed
so that so that we don't get new bugs in the future.  We could
do that by replacing fl with just secid or adding a family field.

Reported-by: syzbot+577fbac3145a6eb2e7a5@syzkaller.appspotmail.com
Fixes: 48b8d78315 ("[XFRM]: State selection update to use inner...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:25 +02:00
Antony Antony
ce868836d8 xfrm: clone whole liftime_cur structure in xfrm_do_migrate
[ Upstream commit 8366685b28 ]

When we clone state only add_time was cloned. It missed values like
bytes, packets.  Now clone the all members of the structure.

v1->v3:
 - use memcpy to copy the entire structure

Fixes: 80c9abaabf ("[XFRM]: Extension for dynamic update of endpoint address(es)")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:24 +02:00
Antony Antony
e4e0a05e10 xfrm: clone XFRMA_SEC_CTX in xfrm_do_migrate
[ Upstream commit 7aa05d3047 ]

XFRMA_SEC_CTX was not cloned from the old to the new.
Migrate this attribute during XFRMA_MSG_MIGRATE

v1->v2:
 - return -ENOMEM on error
v2->v3:
 - fix return type to int

Fixes: 80c9abaabf ("[XFRM]: Extension for dynamic update of endpoint address(es)")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:24 +02:00
Antony Antony
50e117921b xfrm: clone XFRMA_SET_MARK in xfrm_do_migrate
[ Upstream commit 545e5c5716 ]

XFRMA_SET_MARK and XFRMA_SET_MARK_MASK was not cloned from the old
to the new. Migrate these two attributes during XFRMA_MSG_MIGRATE

Fixes: 9b42c1f179 ("xfrm: Extend the output_mark to support input direction and masking.")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-14 10:31:24 +02:00
Dumitru Ceara
5ab1e499f2 openvswitch: handle DNAT tuple collision
commit 8aa7b526dc upstream.

With multiple DNAT rules it's possible that after destination
translation the resulting tuples collide.

For example, two openvswitch flows:
nw_dst=10.0.0.10,tp_dst=10, actions=ct(commit,table=2,nat(dst=20.0.0.1:20))
nw_dst=10.0.0.20,tp_dst=10, actions=ct(commit,table=2,nat(dst=20.0.0.1:20))

Assuming two TCP clients initiating the following connections:
10.0.0.10:5000->10.0.0.10:10
10.0.0.10:5000->10.0.0.20:10

Both tuples would translate to 10.0.0.10:5000->20.0.0.1:20 causing
nf_conntrack_confirm() to fail because of tuple collision.

Netfilter handles this case by allocating a null binding for SNAT at
egress by default.  Perform the same operation in openvswitch for DNAT
if no explicit SNAT is requested by the user and allocate a null binding
for SNAT for packets in the "original" direction.

Reported-at: https://bugzilla.redhat.com/1877128
Suggested-by: Florian Westphal <fw@strlen.de>
Fixes: 05752523e5 ("openvswitch: Interface with NAT.")
Signed-off-by: Dumitru Ceara <dceara@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-14 10:31:24 +02:00
Eric Dumazet
a813aaee68 sctp: fix sctp_auth_init_hmacs() error path
commit d42ee76ecb upstream.

After freeing ep->auth_hmacs we have to clear the pointer
or risk use-after-free as reported by syzbot:

BUG: KASAN: use-after-free in sctp_auth_destroy_hmacs net/sctp/auth.c:509 [inline]
BUG: KASAN: use-after-free in sctp_auth_destroy_hmacs net/sctp/auth.c:501 [inline]
BUG: KASAN: use-after-free in sctp_auth_free+0x17e/0x1d0 net/sctp/auth.c:1070
Read of size 8 at addr ffff8880a8ff52c0 by task syz-executor941/6874

CPU: 0 PID: 6874 Comm: syz-executor941 Not tainted 5.9.0-rc8-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+0x198/0x1fd lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xae/0x497 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530
 sctp_auth_destroy_hmacs net/sctp/auth.c:509 [inline]
 sctp_auth_destroy_hmacs net/sctp/auth.c:501 [inline]
 sctp_auth_free+0x17e/0x1d0 net/sctp/auth.c:1070
 sctp_endpoint_destroy+0x95/0x240 net/sctp/endpointola.c:203
 sctp_endpoint_put net/sctp/endpointola.c:236 [inline]
 sctp_endpoint_free+0xd6/0x110 net/sctp/endpointola.c:183
 sctp_destroy_sock+0x9c/0x3c0 net/sctp/socket.c:4981
 sctp_v6_destroy_sock+0x11/0x20 net/sctp/socket.c:9415
 sk_common_release+0x64/0x390 net/core/sock.c:3254
 sctp_close+0x4ce/0x8b0 net/sctp/socket.c:1533
 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:475
 __sock_release+0xcd/0x280 net/socket.c:596
 sock_close+0x18/0x20 net/socket.c:1277
 __fput+0x285/0x920 fs/file_table.c:281
 task_work_run+0xdd/0x190 kernel/task_work.c:141
 exit_task_work include/linux/task_work.h:25 [inline]
 do_exit+0xb7d/0x29f0 kernel/exit.c:806
 do_group_exit+0x125/0x310 kernel/exit.c:903
 __do_sys_exit_group kernel/exit.c:914 [inline]
 __se_sys_exit_group kernel/exit.c:912 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:912
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x43f278
Code: Bad RIP value.
RSP: 002b:00007fffe0995c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043f278
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004bf068 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000

Allocated by task 6874:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48
 kasan_set_track mm/kasan/common.c:56 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:461
 kmem_cache_alloc_trace+0x174/0x300 mm/slab.c:3554
 kmalloc include/linux/slab.h:554 [inline]
 kmalloc_array include/linux/slab.h:593 [inline]
 kcalloc include/linux/slab.h:605 [inline]
 sctp_auth_init_hmacs+0xdb/0x3b0 net/sctp/auth.c:464
 sctp_auth_init+0x8a/0x4a0 net/sctp/auth.c:1049
 sctp_setsockopt_auth_supported net/sctp/socket.c:4354 [inline]
 sctp_setsockopt+0x477e/0x97f0 net/sctp/socket.c:4631
 __sys_setsockopt+0x2db/0x610 net/socket.c:2132
 __do_sys_setsockopt net/socket.c:2143 [inline]
 __se_sys_setsockopt net/socket.c:2140 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Freed by task 6874:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48
 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56
 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355
 __kasan_slab_free+0xd8/0x120 mm/kasan/common.c:422
 __cache_free mm/slab.c:3422 [inline]
 kfree+0x10e/0x2b0 mm/slab.c:3760
 sctp_auth_destroy_hmacs net/sctp/auth.c:511 [inline]
 sctp_auth_destroy_hmacs net/sctp/auth.c:501 [inline]
 sctp_auth_init_hmacs net/sctp/auth.c:496 [inline]
 sctp_auth_init_hmacs+0x2b7/0x3b0 net/sctp/auth.c:454
 sctp_auth_init+0x8a/0x4a0 net/sctp/auth.c:1049
 sctp_setsockopt_auth_supported net/sctp/socket.c:4354 [inline]
 sctp_setsockopt+0x477e/0x97f0 net/sctp/socket.c:4631
 __sys_setsockopt+0x2db/0x610 net/socket.c:2132
 __do_sys_setsockopt net/socket.c:2143 [inline]
 __se_sys_setsockopt net/socket.c:2140 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: 1f485649f5 ("[SCTP]: Implement SCTP-AUTH internals")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-14 10:31:23 +02:00
Sabrina Dubroca
a01cb66b26 xfrmi: drop ignore_df check before updating pmtu
commit 45a36a18d0 upstream.

xfrm interfaces currently test for !skb->ignore_df when deciding
whether to update the pmtu on the skb's dst. Because of this, no pmtu
exception is created when we do something like:

    ping -s 1438 <dest>

By dropping this check, the pmtu exception will be created and the
next ping attempt will work.

Fixes: f203b76d78 ("xfrm: Add virtual xfrm interfaces")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-14 10:31:23 +02:00
Anant Thazhemadam
c37528577a net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()
commit 3dc289f8f1 upstream.

In nl80211_parse_key(), key.idx is first initialized as -1.
If this value of key.idx remains unmodified and gets returned, and
nl80211_key_allowed() also returns 0, then rdev_del_key() gets called
with key.idx = -1.
This causes an out-of-bounds array access.

Handle this issue by checking if the value of key.idx after
nl80211_parse_key() is called and return -EINVAL if key.idx < 0.

Cc: stable@vger.kernel.org
Reported-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com
Tested-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Link: https://lore.kernel.org/r/20201007035401.9522-1-anant.thazhemadam@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-14 10:31:21 +02:00