CVE-2024-49914

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for pipe_ctx->plane_state in dcn20_program_pipe This commit addresses a null pointer dereference issue in the `dcn20_program_pipe` function. The 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. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn20/dcn20_hwseq.c:1925 dcn20_program_pipe() error: we previously assumed 'pipe_ctx->plane_state' could be null (see line 1877)

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/65a6fee22d5cfa645cb05489892dc9cd3d142fc2 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/65a6fee22d5cfa645cb05489892dc9cd3d142fc2Patch
• https://git.kernel.org/stable/c/8e4ed3cf1642df0c4456443d865cff61a9598aa8Patch
• https://git.kernel.org/stable/c/21c613e1c6ae45bb29ebc156d22060f034cc5665
• https://git.kernel.org/stable/c/68f75e6f08aad66069a629db8d7840919156c761