SB20250226300 - Use-after-free in Linux kernel mt76 mt7921 driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226300
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-49129)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mt7921_stop() function in drivers/net/wireless/mediatek/mt76/mt7921/main.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
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
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20