What’s Vulnerable › Vulnerabilities

CVE-2022-49129: mt76: mt7921: fix crash when startup fails.

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-08-13
• Weakness: CWE-416

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 products

• Linux kernel: from 4.16 before 5.15.34; from 5.16 before 5.16.20; from 5.17 before 5.17.3 — fixed in 5.15.34, 5.16.20, 5.17.3

How to fix

Upgrade to a fixed version: Linux kernel 5.15.34, 5.16.20, 5.17.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/38fbe806645090c07aa97171f20fc62c3d7d3a98
• https://git.kernel.org/stable/c/827e7799c61b978fbc2cc9dac66cb62401b2b3f0
• https://git.kernel.org/stable/c/ac1260b661c2ef0d0a56680cdb5672b931b7be8f
• https://git.kernel.org/stable/c/c1a5e6002ec441a3b9fb4d048b4b49ae93409a46

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