SB20251015102 - Use-after-free in Linux kernel pci b2c2 driver
Published: October 15, 2025
Security Bulletin ID
SB20251015102
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-2025-39996)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the flexcop_pci_remove() function in drivers/media/pci/b2c2/flexcop-pci.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/01e03fb7db419d39e18d6090d4873c1bff103914
- https://git.kernel.org/stable/c/3ffabc79388e68877d9c02f724a0b7a38d519daf
- https://git.kernel.org/stable/c/514a519baa9e2be7ddc2714bd730bc5a883e1244
- https://git.kernel.org/stable/c/6a92f5796880f5aa345f0fed53ef511e3fd6f706
- https://git.kernel.org/stable/c/bb10a9ddc8d6c5dbf098f21eb1055a652652e524
- https://git.kernel.org/stable/c/d502df8a716d993fa0f9d8c00684f1190750e28e