SB20240531343 - NULL pointer dereference in Linux kernel drm bridge driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531343
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-2023-52856)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the lt8912_bridge_detach() function in drivers/gpu/drm/bridge/lontium-lt8912b.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/42071feab712ba2a139b8928f7e0f8d3a6fc719e
- https://git.kernel.org/stable/c/7bf0cb8f40280a85034990dfe42be8ca8f80f37a
- https://git.kernel.org/stable/c/fcd9895e365474709844eeb31cfe53d912c3596e
- https://git.kernel.org/stable/c/b65e3249f3ca96e3c736af889461d80d675feab6
- https://git.kernel.org/stable/c/44283993144a03af9df31934d6c32bbd42d1a347
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.139
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.63
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7