Bug 2373337 (CVE-2025-38021) - CVE-2025-38021 kernel: drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp
Summary: CVE-2025-38021 kernel: drm/amd/display: Fix null check of pipe_ctx->plane_sta...
Keywords:
Status: NEW
Alias: CVE-2025-38021
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-18 10:02 UTC by OSIDB Bzimport
Modified: 2025-06-20 22:07 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-18 10:02:19 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp

Similar to commit 6a057072ddd1 ("drm/amd/display: Fix null check for
pipe_ctx->plane_state in dcn20_program_pipe") that addresses a null
pointer dereference on dcn20_update_dchubp_dpp. This is the same
function hooked for update_dchubp_dpp in dcn401, with the same issue.
Fix possible null pointer deference on dcn401_program_pipe too.

(cherry picked from commit d8d47f739752227957d8efc0cb894761bfe1d879)

Comment 1 Avinash Hanwate 2025-06-20 21:59:18 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061846-CVE-2025-38021-8b31@gregkh/T


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