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| author | Alex Deucher <alexander.deucher@amd.com> | 2024-05-20 09:05:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-05 09:00:31 +0200 |
| commit | 4ad7d49059358ceadd352b4e2511425bdb68f400 (patch) | |
| tree | 8153e94808e90668bf35221a2a1097ca873e3e0f | |
| parent | 61c552e4ee1dbfa85d68997ab6e9d80690b401a7 (diff) | |
drm/amdgpu: fix UBSAN warning in kv_dpm.c
[ Upstream commit f0d576f840153392d04b2d52cf3adab8f62e8cb6 ]
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
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index 91a1628cd48f..77a8d94b8ac7 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -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 = |