SB2026052972 - NULL pointer dereference in Linux kernel xe display driver

Description

This security bulletin contains information about 1 vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2026-46216)

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 intel_hdcp_gsc_check_status() when handling a system state where media_gt is disabled via configfs. A local user can trigger the vulnerable code path to cause a denial of service.

The issue occurs when media GT is disabled and media_gt remains NULL.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/60a1e131a811b68703da58fd805ab359b704ab03
• https://git.kernel.org/stable/c/d8ab4b47edf4578dbfbe5e95817107a514fa34cc