From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit a35faec3db0e13aac8ea720bc1a3503081dd5a3d ]
The > ARRAY_SIZE() should be >= ARRAY_SIZE() to prevent an out of bounds access.
Fixes: e27c41d5b068 ("drm/amd/display: Support for DMUB HPD interrupt handling") Reviewed-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 62139ff35476..8dd03de7c277 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -771,7 +771,7 @@ static void dm_dmub_outbox1_low_irq(void *interrupt_params)
do { dc_stat_get_dmub_notification(adev->dm.dc, ¬ify); - if (notify.type > ARRAY_SIZE(dm->dmub_thread_offload)) { + if (notify.type >= ARRAY_SIZE(dm->dmub_thread_offload)) { DRM_ERROR("DM: notify type %d invalid!", notify.type); continue; }