android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon: fix UBSAN warning in kv_dpm.c

Browse Source 
commit a498df5421fd737d11bfd152428ba6b1c8538321 upstream.

Adds bounds check for sumo_vid_mapping_entry.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher 2024-05-20 09:11:45 -04:00 committed by Greg Kroah-Hartman
parent 71bea3e648
commit febe794b83
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/radeon/sumo_dpm.c
View File

@ -1621,6 +1621,8 @@ void sumo_construct_vid_mapping_table(struct radeon_device *rdev,
for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) { for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) {
if (table[i].ulSupportedSCLK != 0) { if (table[i].ulSupportedSCLK != 0) {
if (table[i].usVoltageIndex >= SUMO_MAX_NUMBER_VOLTAGES)
continue;
vid_mapping_table->entries[table[i].usVoltageIndex].vid_7bit = vid_mapping_table->entries[table[i].usVoltageIndex].vid_7bit =
table[i].usVoltageID; table[i].usVoltageID;
vid_mapping_table->entries[table[i].usVoltageIndex].vid_2bit = vid_mapping_table->entries[table[i].usVoltageIndex].vid_2bit =