🛡️ CVE-2022-50678 — kernel

⚪ Unknown ✅ No Known Exploit NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

wifi: brcmfmac: fix invalid address access when enabling SCAN log level

In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: fix invalid address access when enabling SCAN log level

The variable i is changed when setting random MAC address and causes

invalid address access when printing the value of pi->reqs[i]->reqid.

We replace reqs index with ri to fix the issue.

[ 136.726473] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000

[ 136.737365] Mem abort info:

[ 136.740172] ESR = 0x96000004

[ 136.743359] Exception class = DABT (current EL), IL = 32 bits

[ 136.749294] SET = 0, FnV = 0

[ 136.752481] EA = 0, S1PTW = 0

[ 136.755635] Data abort info:

[ 136.758514] ISV = 0, ISS = 0x00000004

[ 136.762487] CM = 0, WnR = 0

[ 136.765522] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005c4e2577

[ 136.772265] [0000000000000000] pgd=0000000000000000

[ 136.777160] Internal error: Oops: 96000004 [#1] PREEMPT SMP

[ 136.782732] Modules linked in: brcmfmac(O) brcmutil(O) cfg80211(O) compat(O)

[ 136.789788] Process wificond (pid: 3175, stack limit = 0x00000000053048fb)

[ 136.796664] CPU: 3 PID: 3175 Comm: wificond Tainted: G O 4.19.42-00001-g531a5f5 #1

[ 136.805532] Hardware name: Freescale i.MX8MQ EVK (DT)

[ 136.810584] pstate: 60400005 (nZCv daif +PAN -UAO)

[ 136.815429] pc : brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]

[ 136.821811] lr : brcmf_pno_config_sched_scans+0x67c/0xa80 [brcmfmac]

[ 136.828162] sp : ffff00000e9a3880

[ 136.831475] x29: ffff00000e9a3890 x28: ffff800020543400

[ 136.836786] x27: ffff8000b1008880 x26: ffff0000012bf6a0

[ 136.842098] x25: ffff80002054345c x24: ffff800088d22400

[ 136.847409] x23: ffff0000012bf638 x22: ffff0000012bf6d8

[ 136.852721] x21: ffff8000aced8fc0 x20: ffff8000ac164400

[ 136.858032] x19: ffff00000e9a3946 x18: 0000000000000000

[ 136.863343] x17: 0000000000000000 x16: 0000000000000000

[ 136.868655] x15: ffff0000093f3b37 x14: 0000000000000050

[ 136.873966] x13: 0000000000003135 x12: 0000000000000000

[ 136.879277] x11: 0000000000000000 x10: ffff000009a61888

[ 136.884589] x9 : 000000000000000f x8 : 0000000000000008

[ 136.889900] x7 : 303a32303d726464 x6 : ffff00000a1f957d

[ 136.895211] x5 : 0000000000000000 x4 : ffff00000e9a3942

[ 136.900523] x3 : 0000000000000000 x2 : ffff0000012cead8

[ 136.905834] x1 : ffff0000012bf6d8 x0 : 0000000000000000

[ 136.911146] Call trace:

[ 136.913623] brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]

[ 136.919658] brcmf_pno_start_sched_scan+0xa4/0x118 [brcmfmac]

[ 136.925430] brcmf_cfg80211_sched_scan_start+0x80/0xe0 [brcmfmac]

[ 136.931636] nl80211_start_sched_scan+0x140/0x308 [cfg80211]

[ 136.937298] genl_rcv_msg+0x358/0x3f4

[ 136.940960] netlink_rcv_skb+0xb4/0x118

[ 136.944795] genl_rcv+0x34/0x48

[ 136.947935] netlink_unicast+0x264/0x300

[ 136.951856] netlink_sendmsg+0x2e4/0x33c

[ 136.955781] __sys_sendto+0x120/0x19c

Affected software

CVE-2022-50678 is recorded against 2 packages.

  • kernel (from 5.20.0 up to 6.0.3)
  • unknown

Timeline and source

Published on 9 December 2025 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2022-50678 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-09
Updated 2026-08-12
Modified 2026-07-15
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 5.20.0 6.0.3
unknown — —

References

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