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CVE-2022-49129

mt76: mt7921: fix crash when startup fails.

HIGH
7.8
CVSS Score
Published: February 26, 2025 at 01:55 AM UTC
Updated: August 13, 2026 at 12:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix crash when startup fails. If the nic fails to start, it is possible that the reset_work has already been scheduled. Ensure the work item is canceled so we do not have use-after-free crash in case cleanup is called before the work item is executed. This fixes crash on my x86_64 apu2 when mt7921k radio fails to work. Radio still fails, but OS does not crash.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v ≥ 5.12.164.16 ≤ v < 5.15.345.12.16 ≤ v < 5.135.13 ≤ v < 5.15.345.13 ≤ v < 5.16.205.13 ≤ v < 5.17.35.13 ≤ v < 5.185.16 ≤ v < 5.16.205.17 ≤ v < 5.17.30c1ce988460765ece1ba8eacd00533eefb6e666a5.12.165.13bea85ed1f508023e1586ede6a622f35fe910857b
Vendor states this is fixed in 38fbe806645090c07aa97171f20fc62c3d7d3a98 (fixed)
Vendor states this is fixed in 827e7799c61b978fbc2cc9dac66cb62401b2b3f0 (fixed)
Vendor states this is fixed in ac1260b661c2ef0d0a56680cdb5672b931b7be8f (fixed)
Vendor states this is fixed in c1a5e6002ec441a3b9fb4d048b4b49ae93409a46 (fixed)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.15.34 (unaffected)
Vendor states this is fixed in 5.16.20 (unaffected)
Vendor states this is fixed in 5.17.3 (unaffected)
Vendor states this is fixed in 5.18 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/38fbe806645090c07aa97171f20fc62c3d7d3a98
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/827e7799c61b978fbc2cc9dac66cb62401b2b3f0
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ac1260b661c2ef0d0a56680cdb5672b931b7be8f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c1a5e6002ec441a3b9fb4d048b4b49ae93409a46

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416

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