#VU121376 Use-after-free in Linux kernel - CVE-2025-68808
Published: January 14, 2026
Vulnerability identifier: #VU121376
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-2025-68808
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 vidtv_channel_si_init() function in drivers/media/test-drivers/vidtv/vidtv_channel.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/30f4d4e5224a9e44e9ceb3956489462319d804ce
- https://git.kernel.org/stable/c/3caa18d35f1dabe85a3dd31bc387f391ac9f9b4e
- https://git.kernel.org/stable/c/98aabfe2d79f74613abc2b0b1cef08f97eaf5322
- https://git.kernel.org/stable/c/a69c7fd603bf5ad93177394fbd9711922ee81032
- https://git.kernel.org/stable/c/fb9bd6d8d314b748e946ed6555eb4a956ee8c4d8