SB20251210154 - Resource management error in Linux kernel mt76 mt7921 driver
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB20251210154
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) Resource management error (CVE-ID: CVE-2023-53785)
CWE-ID: CWE-399 - Resource Management Errors
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 resource management error within the mt7921_usb_sdio_tx_prepare_skb() function in drivers/net/wireless/mediatek/mt76/mt7921/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/414c0c04703423b78bc9dea1aa6493334dc61f6e
- https://git.kernel.org/stable/c/5c8bbb79c7cbca65534badf360f3b1145759c7bc
- https://git.kernel.org/stable/c/98c4d0abf5c478db1ad126ff0c187dbb84c0803c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6