SB20240531318 - NULL pointer dereference in Linux kernel drm mxsfb driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531318
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-2021-47471)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mxsfb_irq_disable() function in drivers/gpu/drm/mxsfb/mxsfb_drv.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/f40c2281d2c0674d32ba732fee45222d76495472
- https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8
- https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.76
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15