In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add null check for toppipetoprogram in commitplanesforstream
This commit addresses a null pointer dereference issue in the
commit_planes_for_stream
function at line 4140. The issue could occur
when top_pipe_to_program
is null.
The fix adds a check to ensure top_pipe_to_program
is not null before
accessing its stream_res. This prevents a null pointer dereference.
Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:4140 commitplanesforstream() error: we previously assumed 'toppipetoprogram' could be null (see line 3906)