CVE-2022-49129

mt76: mt7921: fix crash when startup fails.

State: Published
Severity: 7.8 High
Published: Feb 26, 2025
Updated: Aug 12, 2026
Reserved: Feb 26, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
LinuxLinux	0c1ce988460765ece1ba8eacd00533eefb6e666a to before 38fbe806645090c07aa97171f20fc62c3d7d3a98Affected 0c1ce988460765ece1ba8eacd00533eefb6e666a to before c1a5e6002ec441a3b9fb4d048b4b49ae93409a46Affected 0c1ce988460765ece1ba8eacd00533eefb6e666a to before ac1260b661c2ef0d0a56680cdb5672b931b7be8fAffected 0c1ce988460765ece1ba8eacd00533eefb6e666a to before 827e7799c61b978fbc2cc9dac66cb62401b2b3f0Affected bea85ed1f508023e1586ede6a622f35fe910857bAffected 5.12.16 to before 5.13Affected
LinuxLinux	5.13Affected before 5.13Not affected 5.15.34 through 5.15.Not affected 5.16.20 through 5.16.Not affected 5.17.3 through 5.17.*Not affected 5.18 and laterNot affected

Product

Versions

LinuxLinux

0c1ce988460765ece1ba8eacd00533eefb6e666a to before 38fbe806645090c07aa97171f20fc62c3d7d3a98Affected
0c1ce988460765ece1ba8eacd00533eefb6e666a to before c1a5e6002ec441a3b9fb4d048b4b49ae93409a46Affected
0c1ce988460765ece1ba8eacd00533eefb6e666a to before ac1260b661c2ef0d0a56680cdb5672b931b7be8fAffected
0c1ce988460765ece1ba8eacd00533eefb6e666a to before 827e7799c61b978fbc2cc9dac66cb62401b2b3f0Affected
bea85ed1f508023e1586ede6a622f35fe910857bAffected
5.12.16 to before 5.13Affected

LinuxLinux

5.13Affected
before 5.13Not affected
5.15.34 through 5.15.*Not affected
5.16.20 through 5.16.*Not affected
5.17.3 through 5.17.*Not affected
5.18 and laterNot affected

References

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