SB20251112121 - Improper locking in Linux kernel net usb driver
Published: November 12, 2025
Security Bulletin ID
SB20251112121
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 security vulnerability.
1) Improper locking (CVE-ID: CVE-2025-40120)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the ax88772_suspend(), ax88772_bind() and ax88772_unbind() functions in drivers/net/usb/asix_devices.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/1534517300e12f2930b6ff477b8820ff658afd11
- https://git.kernel.org/stable/c/3d3c4cd5c62f24bb3cb4511b7a95df707635e00a
- https://git.kernel.org/stable/c/3e96cd27ff1a004d84908c1b6cc68ac60913874e
- https://git.kernel.org/stable/c/71a0ba7fdaf8d035426912a4ed7bf1738a81010c
- https://git.kernel.org/stable/c/724a9db84188f80ef60b1f21cc7b4e9c84e0cb64
- https://git.kernel.org/stable/c/9d8bcaf6fae1bd82bc27ec09a2694497e6f6c4b4