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drm/radeon: fix UBSAN warning in kv_dpm.c
commit a498df5421
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>
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@ -1619,6 +1619,8 @@ void sumo_construct_vid_mapping_table(struct radeon_device *rdev,
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for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) {
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if (table[i].ulSupportedSCLK != 0) {
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if (table[i].usVoltageIndex >= SUMO_MAX_NUMBER_VOLTAGES)
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continue;
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vid_mapping_table->entries[table[i].usVoltageIndex].vid_7bit =
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table[i].usVoltageID;
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vid_mapping_table->entries[table[i].usVoltageIndex].vid_2bit =
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