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Filename Latest commit message Latest commit date
Wenli Looi dccd575337 staging: rtl8723bs: Fix uninitialized variables 
commit 43c85d770db80cb135f576f8fde6ff1a08e707a4 upstream.

The sinfo.pertid and sinfo.generation variables are not initialized and
it causes a crash when we use this as a wireless access point.

[  456.873025] ------------[ cut here ]------------
[  456.878198] kernel BUG at mm/slub.c:3968!
[  456.882680] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM

  [ snip ]

[  457.271004] Backtrace:
[  457.273733] [<c02b7ee4>] (kfree) from [<c0e2a470>] (nl80211_send_station+0x954/0xfc4)
[  457.282481]  r9:eccca0c0 r8:e8edfec0 r7:00000000 r6:00000011 r5:e80a9480 r4:e8edfe00
[  457.291132] [<c0e29b1c>] (nl80211_send_station) from [<c0e2b18c>] (cfg80211_new_sta+0x90/0x1cc)
[  457.300850]  r10:e80a9480 r9:e8edfe00 r8:ea678cca r7:00000a20 r6:00000000 r5:ec46d000
[  457.309586]  r4:ec46d9e0
[  457.312433] [<c0e2b0fc>] (cfg80211_new_sta) from [<bf086684>] (rtw_cfg80211_indicate_sta_assoc+0x80/0x9c [r8723bs])
[  457.324095]  r10:00009930 r9:e85b9d80 r8:bf091050 r7:00000000 r6:00000000 r5:0000001c
[  457.332831]  r4:c1606788
[  457.335692] [<bf086604>] (rtw_cfg80211_indicate_sta_assoc [r8723bs]) from [<bf03df38>] (rtw_stassoc_event_callback+0x1c8/0x1d4 [r8723bs])
[  457.349489]  r7:ea678cc0 r6:000000a1 r5:f1225f84 r4:f086b000
[  457.355845] [<bf03dd70>] (rtw_stassoc_event_callback [r8723bs]) from [<bf048e4c>] (mlme_evt_hdl+0x8c/0xb4 [r8723bs])
[  457.367601]  r7:c1604900 r6:f086c4b8 r5:00000000 r4:f086c000
[  457.373959] [<bf048dc0>] (mlme_evt_hdl [r8723bs]) from [<bf03693c>] (rtw_cmd_thread+0x198/0x3d8 [r8723bs])
[  457.384744]  r5:f086e000 r4:f086c000
[  457.388754] [<bf0367a4>] (rtw_cmd_thread [r8723bs]) from [<c014a214>] (kthread+0x170/0x174)
[  457.398083]  r10:ed7a57e8 r9:bf0367a4 r8:f086b000 r7:e8ede000 r6:00000000 r5:e9975200
[  457.406828]  r4:e8369900
[  457.409653] [<c014a0a4>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[  457.417718] Exception stack(0xe8edffb0 to 0xe8edfff8)
[  457.423356] ffa0:                                     00000000 00000000 00000000 00000000
[  457.432492] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  457.441618] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
[  457.449006]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c014a0a4
[  457.457750]  r4:e9975200
[  457.460574] Code: 1a000003 e5953004 e3130001 1a000000 (e7f001f2)
[  457.467381] ---[ end trace 4acbc8c15e9e6aa7 ]---

Link: https://forum.armbian.com/topic/14727-wifi-ap-kernel-bug-in-kernel-5444/
Fixes: 8689c051a2 ("cfg80211: dynamically allocate per-tid stats for station info")
Fixes: f5ea9120be ("nl80211: add generation number to all dumps")
Signed-off-by: Wenli Looi <wlooi@ucalgary.ca>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210608064620.74059-1-wlooi@ucalgary.ca
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-16 11:59:39 +02:00
arch x86/boot: Add .text.* to setup.ld 2021-06-16 11:59:38 +02:00
block
certs
crypto
Documentation XArray: add xas_split 2021-06-10 13:37:14 +02:00
drivers staging: rtl8723bs: Fix uninitialized variables 2021-06-16 11:59:39 +02:00
fs proc: Track /proc/$pid/attr/ opener mm_struct 2021-06-16 11:59:32 +02:00
include kvm: avoid speculation-based attacks from out-of-range memslot accesses 2021-06-16 11:59:39 +02:00
init pid: take a reference when initializing cad_pid 2021-06-10 13:37:11 +02:00
ipc
kernel wq: handle VM suspension in stall detection 2021-06-16 11:59:35 +02:00
lib lib/lz4: explicitly support in-place decompression 2021-06-10 13:37:16 +02:00
LICENSES
mm mm/filemap: fix storing to a THP shadow entry 2021-06-10 13:37:15 +02:00
net RDS tcp loopback connection can hang 2021-06-16 11:59:35 +02:00
samples samples: vfio-mdev: fix error handing in mdpy_fb_probe() 2021-06-10 13:37:03 +02:00
scripts scripts: switch explicitly to Python 3 2021-05-22 11:38:30 +02:00
security
sound ASoC: sti-sas: add missing MODULE_DEVICE_TABLE 2021-06-16 11:59:33 +02:00
tools perf jevents: Fix getting maximum number of fds 2021-06-03 08:59:08 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Kbuild
Kconfig
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Makefile Linux 5.4.125 2021-06-10 13:37:17 +02:00
README

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.