SB20240531513 - NULL pointer dereference in Linux kernel dc dcn21 driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531513
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-2024-26662)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the dcn21_set_backlight_level() function in drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.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/2e150ccea13129eb048679114808eb9770443e4d
- https://git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5
- https://git.kernel.org/stable/c/e96fddb32931d007db12b1fce9b5e8e4c080401b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8