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drm/amdgpu/vce: Prevent partial address patches

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In the case that only one of lo/hi is valid, the patching could result
in a bad address written to in FW.

Signed-off-by: Benjamin Cheng <benjamin.cheng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Benjamin Cheng 2026-03-30 15:01:27 -04:00 committed by Alex Deucher
parent 66085e2064
commit de2a02cc28
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
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@ -680,6 +680,9 @@ static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, struct amdgpu_ib *ib,
uint64_t addr;
int r;
if (lo >= ib->length_dw || hi >= ib->length_dw)
return -EINVAL;
if (index == 0xffffffff)
index = 0;