SB20251015103 - Use-after-free in Linux kernel usb
Published: October 15, 2025
Security Bulletin ID
SB20251015103
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-2025-39997)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the snd_usbmidi_free() function in sound/usb/midi.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/353d8c715cc951a980728133c9dd64ca5a0a186c
- https://git.kernel.org/stable/c/647d6b8d22be12842fde6ed0c56859ebc615f21e
- https://git.kernel.org/stable/c/9f2c0ac1423d5f267e7f1d1940780fc764b0fee3
- https://git.kernel.org/stable/c/af600e7f5526d16146b3ae99f6ad57bfea79ca33
- https://git.kernel.org/stable/c/dc4874366cf6cf4a31d8fa4b7f0e2a5b2d7647ba