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| author | Chenyuan Yang <chenyuan0y@gmail.com> | 2025-07-24 05:36:41 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-08-19 00:57:12 +0300 |
| commit | 7a2ca2ea64b1b63c8baa94a8f5deb70b2248d119 (patch) | |
| tree | 30fdcd5fd0f26c08eb1cdf89ab0e960be181eecc /tools/testing/selftests/bpf/prog_tests/prog_array_init.c | |
| parent | 66af73a1c319336694a8610fe4c2943f7b33066c (diff) | |
| download | linux-7a2ca2ea64b1b63c8baa94a8f5deb70b2248d119.tar.xz | |
drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session()
The function mod_hdcp_hdcp1_create_session() calls the function
get_first_active_display(), but does not check its return value.
The return value is a null pointer if the display list is empty.
This will lead to a null pointer dereference.
Add a null pointer check for get_first_active_display() and return
MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.
This is similar to the commit c3e9826a2202
("drm/amd/display: Add null pointer check for get_first_active_display()").
Fixes: 2deade5ede56 ("drm/amd/display: Remove hdcp display state with mst fix")
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5e43eb3cd731649c4f8b9134f857be62a416c893)
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/prog_array_init.c')
0 files changed, 0 insertions, 0 deletions