#VU115423 NULL pointer dereference in Linux kernel - CVE-2023-53239
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115423
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53239
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mdp5_crtc_reset() function in drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/13fcfcb2a9a4787fe4e49841d728f6f2e9fa6911
- https://git.kernel.org/stable/c/37ff771ed008b9cbffd0eab77985968364694ce3
- https://git.kernel.org/stable/c/3975ea6eaffe26aec634b5c473e51dc76e73af62
- https://git.kernel.org/stable/c/49907c8873826ee771ba0ca1629e809c6479f617
- https://git.kernel.org/stable/c/82943a0730e00c14b03e25a4b2a1a9477ae89d7b
- https://git.kernel.org/stable/c/bc579a2ee8b2e20c152b24b437d094832d8c9c9e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16