Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices: OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
Find a file
Lorenzo Bianconi 6e53d6d269 mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
Fix the following NULL pointer dereference in mt7915_get_phy_mode
routine adding an ibss interface to the mt7915 driver.

[  101.137097] wlan0: Trigger new scan to find an IBSS to join
[  102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69
[  103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[  103.073670] Mem abort info:
[  103.076520]   ESR = 0x96000005
[  103.079614]   EC = 0x25: DABT (current EL), IL = 32 bits
[  103.084934]   SET = 0, FnV = 0
[  103.088042]   EA = 0, S1PTW = 0
[  103.091215] Data abort info:
[  103.094104]   ISV = 0, ISS = 0x00000005
[  103.098041]   CM = 0, WnR = 0
[  103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000
[  103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000
[  103.116590] Internal error: Oops: 96000005 [#1] SMP
[  103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0
[  103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT)
[  103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211]
[  103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)
[  103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e]
[  103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e]
[  103.223927] sp : ffffffc011cdb9e0
[  103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098
[  103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40
[  103.237855] x25: 0000000000000001 x24: 000000000000011f
[  103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918
[  103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58
[  103.253785] x19: ffffff8006744400 x18: 0000000000000000
[  103.259094] x17: 0000000000000000 x16: 0000000000000001
[  103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8
[  103.269713] x13: 0000000000000000 x12: 0000000000000000
[  103.275024] x11: ffffffc010e30c20 x10: 0000000000000000
[  103.280333] x9 : 0000000000000050 x8 : ffffff8006567d88
[  103.285642] x7 : ffffff8006563b5c x6 : ffffff8006563b44
[  103.290952] x5 : 0000000000000002 x4 : 0000000000000001
[  103.296262] x3 : 0000000000000001 x2 : 0000000000000001
[  103.301572] x1 : 0000000000000000 x0 : 0000000000000011
[  103.306882] Call trace:
[  103.309328]  mt7915_get_phy_mode+0x68/0x120 [mt7915e]
[  103.314378]  mt7915_bss_info_changed+0x198/0x200 [mt7915e]
[  103.319941]  ieee80211_bss_info_change_notify+0x128/0x290 [mac80211]
[  103.326360]  __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211]
[  103.332171]  ieee80211_sta_create_ibss+0x8c/0x10c [mac80211]
[  103.337895]  ieee80211_ibss_work+0x3dc/0x614 [mac80211]
[  103.343185]  ieee80211_iface_work+0x388/0x3f0 [mac80211]
[  103.348495]  process_one_work+0x288/0x690
[  103.352499]  worker_thread+0x70/0x464
[  103.356157]  kthread+0x144/0x150
[  103.359380]  ret_from_fork+0x10/0x18
[  103.362952] Code: 394008c3 52800220 394000e4 7100007f (39400023)

Fixes: 37f4ca907c ("mt76: mt7915: register per-phy HE capabilities for each interface")
Fixes: e57b790146 ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/ddae419a740f1fb9e48afd432035e9f394f512ee.1637239456.git.lorenzo@kernel.org
2021-11-22 20:43:09 +02:00
arch parisc architecture build-, trace-, backtrace- and page table fixes 2021-11-14 11:53:59 -08:00
block blk-mq: fix filesystem I/O request allocation 2021-11-12 09:31:13 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
Documentation Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
drivers mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode 2021-11-22 20:43:09 +02:00
fs Minor tweaks for 5.16: 2021-11-14 12:18:22 -08:00
include Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
init kconfig: Add support for -Wimplicit-fallthrough 2021-11-14 13:27:30 -08:00
ipc ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL 2021-11-09 10:02:53 -08:00
kernel A single fix for POSIX CPU timers to address a problem where POSIX CPU 2021-11-14 10:43:38 -08:00
lib Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm Revert "mm: shmem: don't truncate page if memory failure happens" 2021-11-13 12:03:03 -08:00
net One notable change here is that async creates and unlinks introduced 2021-11-13 11:31:07 -08:00
samples Add gitignore file for samples/fanotify/ subdirectory 2021-11-07 11:19:24 -08:00
scripts coccinelle patches for 5.16-rc1 2021-11-13 10:45:17 -08:00
security net,lsm,selinux: revert the security_sctp_assoc_established() hook 2021-11-12 12:07:02 -05:00
sound sound fixes for 5.16-rc1 2021-11-12 12:17:30 -08:00
tools A single fix for static calls to make the trampoline patching more robust 2021-11-14 10:30:17 -08:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt KVM: generalize "bugged" VM to "dead" VM 2021-11-11 10:35:26 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS - Add the model number of a new, Raptor Lake CPU, to intel-family.h 2021-11-14 09:29:03 -08:00
Makefile Linux 5.16-rc1 2021-11-14 13:56:52 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.