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| author | Alex Deucher <alexander.deucher@amd.com> | 2026-03-04 17:26:17 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-17 10:49:47 -0400 |
| commit | dea5f235baf3786bfd4fd920b03c19285fdc3d9f (patch) | |
| tree | 4bcb11905d855eb06e502ada061a3ecdb61822f5 | |
| parent | 04f063d85090f5dd0c671010ce88ee49d9dcc8ed (diff) | |
| download | linux-dea5f235baf3786bfd4fd920b03c19285fdc3d9f.tar.gz linux-dea5f235baf3786bfd4fd920b03c19285fdc3d9f.zip | |
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>
| -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 97a00075aa7a..2fb82e022c79 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c @@ -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; |