CVE-2025-21941: drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params Null pointer dereference issue could occur when pipe_ctx->plane_state is null. The fix adds a check to ensure 'pipe_ctx->plane_state' is not null before accessing. This prevents a null pointer dereference. Found by code review. (cherry picked from commit 63e6a77ccf239337baa9b1e7787cde9fa0462092)

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < 265422915416468ba91bffa56addbff45e18342aaffected
3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < f435192e00bc4d5d4134356b93212670ec47fa8daffected
3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < c1e54752dc12e90305eb0475ca908f42f5b369caaffected
3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < 3b3c2be58d5275aa59d8b4810a59f173f2f5bac1affected
3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < e0345c3478f185ca840daac7f08a1fcd4ebec3e9affected
3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < 3748fad09d89e9a5290e1738fd6872a79f794743affected
3be5262e353b8ab97c528bfc7d0dd3c820e4ba27 to < 374c9faac5a763a05bc3f68ad9f73dab3c6aec90affected

Linux Linux

Default version status: affected

4.15affected
0 to < 4.15unaffected
5.10.236 to ≤ 5.10.*unaffected
5.15.180 to ≤ 5.15.*unaffected
6.1.131 to ≤ 6.1.*unaffected
6.6.83 to ≤ 6.6.*unaffected
6.12.19 to ≤ 6.12.*unaffected
6.13.7 to ≤ 6.13.*unaffected
6.14 to ≤ *unaffected

CVE-2025-21941

drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params

Description

Affected products

Linux Linux

Linux Linux

References