Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check for pipe_ctx->plane_state in dcn20_program_pipe This commit addresses a null pointer dereference issue in dcn20_program_pipe(). Previously, commit 8e4ed3cf1642 ("drm/amd/display: Add null check for pipe_ctx->plane_state in dcn20_program_pipe") partially fixed the null pointer dereference issue. However, in dcn20_update_dchubp_dpp(), the variable pipe_ctx is passed in, and plane_state is accessed again through pipe_ctx. Multiple if statements directly call attributes of plane_state, leading to potential null pointer dereference issues. This patch adds necessary null checks to ensure stability.
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
68f75e6f08aad66069a629db8d7840919156c761 to < 0335fb698ab0415d87650bc7a0f465c563ddec7daffected65a6fee22d5cfa645cb05489892dc9cd3d142fc2 to < 6b4ee2560d4d8de2688da68cd9581177035e0876affected8e4ed3cf1642df0c4456443d865cff61a9598aa8 to < 3609259326171cd5b98462636580fb2ae5c87d40affected8e4ed3cf1642df0c4456443d865cff61a9598aa8 to < 6a057072ddd127255350357dd880903e8fa23f36affected6.6.64 to < 6.6.160affected6.11.3 to < 6.11.11affected
Linux Linux
Default version status: affected
6.12affected0 to < 6.12unaffected6.6.160 to ≤ 6.6.*unaffected6.11.11 to ≤ 6.11.*unaffected6.12.2 to ≤ 6.12.*unaffected6.13 to ≤ *unaffected