SB2025091717 - NULL pointer dereference in Linux kernel drm mediatek driver
Published: September 17, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091717
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-2023-53325)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mtk_dp_aux_do_transfer() and mtk_dp_aux_transfer() functions in drivers/gpu/drm/mediatek/mtk_dp.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/4c743c1dd2ee2a72951660b6798d4d7f7674f87b
- https://git.kernel.org/stable/c/7839f62294039959076dd06232e07aec7f7d5b2b
- https://git.kernel.org/stable/c/fd70e2019bfbcb0ed90c5e23839bf510ce6acf8f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6