github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 15:41:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amdgpu/mmhub4.2.0: add bounds checking for cid

Browse Source 
The value should never exceed the array size as those
are the only values the hardware is expected to return,
but add checks anyway.

Reviewed-by: Benjamin Cheng <benjamin.cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2026-03-04 17:26:17 -05:00
parent 04f063d850
commit dea5f235ba
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c
View File

@ -728,7 +728,8 @@ mmhub_v4_2_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
status);
switch (amdgpu_ip_version(adev, MMHUB_HWIP, 0)) {
case IP_VERSION(4, 2, 0):
mmhub_cid = mmhub_client_ids_v4_2_0[cid][rw];
mmhub_cid = cid < ARRAY_SIZE(mmhub_client_ids_v4_2_0) ?
mmhub_client_ids_v4_2_0[cid][rw] : NULL;
break;
default:
mmhub_cid = NULL;