SB2025061937 - Memory leak in Linux kernel mediatek mt76 driver
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB2025061937
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2022-50172)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the __mt76x02u_mcu_send_msg() function in drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2f53ba46d8c97aca681adbe5098e1f84580c446d
- https://git.kernel.org/stable/c/3ad958bc488e3ecb0207d31621c00efb86f17482
- https://git.kernel.org/stable/c/cffd93411575afd987788e2ec3cb8eaff70f0215
- https://git.kernel.org/stable/c/da1ab462b96c5d47a0755aec957bae3d685538c5
- https://git.kernel.org/stable/c/f1609c4f4a21777e081b36596224802b85052ad9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61