Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 68f75e6f08aad66069a629db8d7840919156c761 before 0335fb698ab0415d87650bc7a0f465c563ddec7d; affected 65a6fee22d5cfa645cb05489892dc9cd3d142fc2 before 6b4ee2560d4d8de2688da68cd9581177035e0876; affected 8e4ed3cf1642df0c4456443d865cff61a9598aa8 before 3609259326171cd5b98462636580fb2ae5c87d40; affected 8e4ed3cf1642df0c4456443d865cff61a9598aa8 before 6a057072ddd127255350357dd880903e8fa23f36; affected 6.6.64 before 6.6.160; affected 6.11.3 before 6.11.11 |
| Linux / Linux | affected 6.12; unaffected 0 before 6.12; unaffected 6.6.160 through 6.6.*; unaffected 6.11.11 through 6.11.*; unaffected 6.12.2 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0335fb698ab0415d87650bc7a0f465c563ddec7d
- https://git.kernel.org/stable/c/6b4ee2560d4d8de2688da68cd9581177035e0876
- https://git.kernel.org/stable/c/3609259326171cd5b98462636580fb2ae5c87d40
- https://git.kernel.org/stable/c/6a057072ddd127255350357dd880903e8fa23f36
ADP enrichment
No English description supplied.
No references supplied.