From: Alex Deucher <alexander.deucher@amd.com> mainline inclusion from mainline-v6.10-rc5 commit f0d576f840153392d04b2d52cf3adab8f62e8cb6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IACQY7 CVE: CVE-2024-40987 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... --------------------------- 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 Conflicts: drivers/gpu/drm/amd/amdgpu/kv_dpm.c drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c [yyl: The directory is renamed from amdgpu to legacy-dpm in mainline] Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index f046348362e3..e74e53bdec49 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 = -- 2.25.1