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| author | Alex Deucher <alexander.deucher@amd.com> | 2026-03-04 17:24:35 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-17 10:49:36 -0400 |
| commit | 5f76083183363c4528a4aaa593f5d38c28fe7d7b (patch) | |
| tree | aceb0436c067b1efeaaa0fb9665998f889563b8e /drivers/gpu | |
| parent | 89cd90375c19fb45138990b70e9f4ba4806f05c4 (diff) | |
| download | lwn-5f76083183363c4528a4aaa593f5d38c28fe7d7b.tar.gz lwn-5f76083183363c4528a4aaa593f5d38c28fe7d7b.zip | |
drm/amdgpu/mmhub3.0.1: 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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c index 910337dc28d1..14a742d3a99d 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c @@ -117,7 +117,8 @@ mmhub_v3_0_1_print_l2_protection_fault_status(struct amdgpu_device *adev, switch (amdgpu_ip_version(adev, MMHUB_HWIP, 0)) { case IP_VERSION(3, 0, 1): - mmhub_cid = mmhub_client_ids_v3_0_1[cid][rw]; + mmhub_cid = cid < ARRAY_SIZE(mmhub_client_ids_v3_0_1) ? + mmhub_client_ids_v3_0_1[cid][rw] : NULL; break; default: mmhub_cid = NULL; |