SB20240531316 - NULL pointer dereference in Linux kernel msm edp driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531316
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-2021-47445)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the msm_edp_ctrl_power() and msm_edp_ctrl_init() functions in drivers/gpu/drm/msm/edp/edp_ctrl.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/f175b9a83e5c252d7c74acddc792840016caae0a
- https://git.kernel.org/stable/c/bacac7d26849c8e903ceb7466d9ce8dc3c2797eb
- https://git.kernel.org/stable/c/0cd063aa0a09822cc1620fc59a67fe2f9f6338ac
- https://git.kernel.org/stable/c/7f642b93710b6b1119bdff90be01e6b5a2a5d669
- https://git.kernel.org/stable/c/f302be08e3de94db8863a0b2958b2bb3e8e998e6
- https://git.kernel.org/stable/c/91a340768b012f5b910a203a805b97a345b3db37
- https://git.kernel.org/stable/c/46c8ddede0273d1d132beefa9de8b820326982be
- https://git.kernel.org/stable/c/2133c4fc8e1348dcb752f267a143fe2254613b34
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.252
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.213
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.290
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.288
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.155