CVE-2026-46216: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/xe/hdcp: Add NULL check for media_gt in intel_hdcp_gsc_check_status() When media GT is disabled via configfs, there is no allocation for media_gt, which is kept as NULL. In such scenario, intel_hdcp_gsc_check_status() results in a kernel pagefault error due to &gt->uc.gsc being evaluated as an invalid memory address. Fix that by introducing a NULL check on media_gt and bailing out early if so. While at it, also drop the NULL check for gsc, since it can't be NULL if media_gt is not NULL. v2: - Get address for gsc only after checking that gt is not NULL. (Shuicheng) - Drop the NULL check for gsc. (Shuicheng) v3: - Add "Fixes" and "Cc: <stable...>" tags. (Matt) (cherry picked from commit bfaf87e84ca3ca3f6e275f9ae56da47a8b55ffd1)

Засегнати продукти

• Linux Linux: 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 преди cad210d2851f3a7d9573bdfc02aa61d9287bbe8c; 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 преди 814326e86e929b865020ff44f4576dbdfe3f7ff3; 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 преди d8ab4b47edf4578dbfbe5e95817107a514fa34cc; 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 преди 60a1e131a811b68703da58fd805ab359b704ab03
• Linux Linux: 6.10; преди 6.10; 6.12.92 до 6.12.*; 6.18.34 до 6.18.*; 7.0.9 до 7.0.*; 7.1 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-46216
• https://nvd.nist.gov/vuln/detail/CVE-2026-46216
• https://git.kernel.org/stable/c/cad210d2851f3a7d9573bdfc02aa61d9287bbe8c
• https://git.kernel.org/stable/c/814326e86e929b865020ff44f4576dbdfe3f7ff3
• https://git.kernel.org/stable/c/d8ab4b47edf4578dbfbe5e95817107a514fa34cc
• https://git.kernel.org/stable/c/60a1e131a811b68703da58fd805ab359b704ab03