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Filename Latest commit message Latest commit date
Andrei Otcheretianski 7a48064a42 iwlwifi: mvm: Check the sta is not NULL in iwl_mvm_cfg_he_sta()
[ Upstream commit 12d47f0ea5e0aa63f19ba618da55a7c67850ca10 ]

Fix a kernel panic by checking that the sta is not NULL.
This could happen during a reconfig flow, as mac80211 moves the sta
between all the states without really checking if the previous state was
successfully set. So, if for some reason we failed to add back the
station, subsequent calls to sta_state() callback will be done when the
station is NULL. This would result in a following panic:

BUG: unable to handle kernel NULL pointer dereference at
0000000000000040
IP: iwl_mvm_cfg_he_sta+0xfc/0x690 [iwlmvm]
[..]
Call Trace:
 iwl_mvm_mac_sta_state+0x629/0x6f0 [iwlmvm]
 drv_sta_state+0xf4/0x950 [mac80211]
 ieee80211_reconfig+0xa12/0x2180 [mac80211]
 ieee80211_restart_work+0xbb/0xe0 [mac80211]
 process_one_work+0x1e2/0x610
 worker_thread+0x4d/0x3e0
[..]

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:37:01 +01:00
arch powerpc: Do not consider weak unresolved symbol relocations as bad 2020-02-24 08:37:00 +01:00
block block, bfq: do not plug I/O for bfq_queues with no proc refs 2020-02-24 08:36:31 +01:00
certs
crypto crypto: essiv - fix AEAD capitalization and preposition use in help text 2020-02-24 08:36:50 +01:00
Documentation fbdev: fix numbering of fbcon options 2020-02-24 08:36:42 +01:00
drivers iwlwifi: mvm: Check the sta is not NULL in iwl_mvm_cfg_he_sta() 2020-02-24 08:37:01 +01:00
fs reiserfs: prevent NULL pointer dereference in reiserfs_insert_item() 2020-02-24 08:37:00 +01:00
include raid6/test: fix a compilation warning 2020-02-24 08:36:47 +01:00
init Revert "um: Enable CONFIG_CONSTRUCTORS" 2020-02-01 09:34:53 +00:00
ipc ipc/msg.c: consolidate all xxxctl_down() functions 2020-02-11 04:35:07 -08:00
kernel trigger_next should increase position index 2020-02-24 08:36:59 +01:00
lib lib/scatterlist.c: adjust indentation in __sg_alloc_table 2020-02-24 08:37:00 +01:00
LICENSES
mm mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush 2020-02-11 04:35:42 -08:00
net sunrpc: Fix potential leaks in sunrpc_cache_unhash() 2020-02-24 08:36:55 +01:00
samples samples/bpf: Set -fno-stack-protector when building BPF programs 2020-02-24 08:36:36 +01:00
scripts bpf, btf: Always output invariant hit in pahole DWARF to BTF transform 2020-02-24 08:36:55 +01:00
security selinux: ensure we cleanup the internal AVC counters on error in avc_update() 2020-02-24 08:36:39 +01:00
sound ALSA: usb-audio: add quirks for Line6 Helix devices fw>=2.82 2020-02-24 08:36:58 +01:00
tools selftests/eeh: Bump EEH wait time to 60s 2020-02-24 08:36:57 +01:00
usr
virt KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer 2020-02-14 16:34:18 -05:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: correct entries for ISDN/mISDN section 2020-02-11 04:35:06 -08:00
Makefile Linux 5.4.21 2020-02-19 19:53:10 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.