SB20251226142 - Use-after-free in Linux kernel test-drivers vidtv driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226142
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-50725)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 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
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_bridge_dvb_init() function in drivers/media/test-drivers/vidtv/vidtv_bridge.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0369af6fe33d4053899b121b32e91f870b2cf0ae
- https://git.kernel.org/stable/c/06398ce69571a43a8a0dd0f1bfe35d221f726a6a
- https://git.kernel.org/stable/c/8a204a0b4a0d105229735222c515759ea2b126c1
- https://git.kernel.org/stable/c/ba8d9405935097e296bcf7a942c3a01df0edb865
- https://git.kernel.org/stable/c/c290aa527fd832d278c6388a3ba53a9890fbd74a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86