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| author | Alex Deucher <alexander.deucher@amd.com> | 2026-03-05 01:26:17 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-17 19:19:17 +0300 |
| commit | 9c52f49545478aa47769378cd0b53c5005d6a846 (patch) | |
| tree | 981afd25796f6e1547ae14de6ecfed72230f2eae /drivers/gpu | |
| parent | 3cdd405831d8cc50a5eae086403402697bb98a4a (diff) | |
| download | linux-9c52f49545478aa47769378cd0b53c5005d6a846.tar.xz | |
drm/amdgpu/mmhub4.2.0: add bounds checking for cid
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>
(cherry picked from commit dea5f235baf3786bfd4fd920b03c19285fdc3d9f)
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c index a72770e3d0e9..2532ca80f735 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c @@ -688,7 +688,8 @@ 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; |