SB2026060441 - NULL pointer dereference in Linux kernel display amdgpu_dm driver
Published: June 4, 2026
Security Bulletin ID
SB2026060441
CSH 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 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-46245)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in amdgpu_dm_hpd_init() in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c when initializing HPD interrupts for connectors without a valid dc_link. A local user can trigger handling of such a connector to cause a denial of service.
Remediation
Install update from vendor's website.