#VU117253 Use-after-free in Linux kernel - CVE-2025-39996
Published: October 15, 2025
Vulnerability identifier: #VU117253
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39996
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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 repository.
External links
- 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