SB2025122646 - Memory leak in Linux kernel mediatek mt76 driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025122646
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-2023-54052)
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 mt76_connac2_mac_write_txwi() function in drivers/net/wireless/mediatek/mt76/mt76_connac_mac.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/1cd102aaedb277fbe81dd08cd9f5cae951de2bff
- https://git.kernel.org/stable/c/b642f4c5f3de0a8f47808d32b1ebd9c427a42a66
- https://git.kernel.org/stable/c/bf5d3fad7219b8de7d3a9cb59f0ea5243b018f07
- https://git.kernel.org/stable/c/e74778e91fedc3b2a0143264887bbb32508c5000
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.15