system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-09 04:38:56 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: fix UBSAN warning in kv_dpm.c

Browse Source 
Adds bounds check for sumo_vid_mapping_entry.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3392
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2024-05-20 09:05:21 -04:00
parent a498df5421
commit f0d576f840
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/amd/pm/legacy-dpm/kv_dpm.c
View File

@ -164,6 +164,8 @@ static void sumo_construct_vid_mapping_table(struct amdgpu_device *adev,
for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) {
if (table[i].ulSupportedSCLK != 0) {
if (table[i].usVoltageIndex >= SUMO_MAX_NUMBER_VOLTAGES)
continue;
vid_mapping_table->entries[table[i].usVoltageIndex].vid_7bit =
table[i].usVoltageID;
vid_mapping_table->entries[table[i].usVoltageIndex].vid_2bit =