SB20250916178 - NULL pointer dereference in Linux kernel drm bridge driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916178
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-50317)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ge_b850v3_lvds_remove() function in drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1daf69228e310938177119c4eadcd30fc75c81e0
- https://git.kernel.org/stable/c/1ff673333d46d2c1b053ebd0c1c7c7c79e36943e
- https://git.kernel.org/stable/c/21764467ab396d9f08921e0a5ffa1214244e1ad9
- https://git.kernel.org/stable/c/4610e7a4111fa3f3ce27c09d6d94008c55f1cd31
- https://git.kernel.org/stable/c/5bc20bafcd87ba0858ab772cefc7047cb51bc249
- https://git.kernel.org/stable/c/7371fad5cfe6eada6bb5523c895fd6074b15c2b9
- https://git.kernel.org/stable/c/877e92e9b1bdeb580b31a46061005936be902cd4
- https://git.kernel.org/stable/c/aaa512ad1e59f2edf8a9e4f2b167a44b24670679
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.296