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drm/amdgpu: add error handle to avoid out-of-bounds

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commit 8b2faf1a4f upstream.

if the sdma_v4_0_irq_id_to_seq return -EINVAL, the process should
be stop to avoid out-of-bounds read, so directly return -EINVAL.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bob Zhou 2024-04-23 16:58:11 +08:00 committed by Greg Kroah-Hartman
parent 7d12e918f2
commit 5b0a3dc3e8
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
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@ -2031,6 +2031,9 @@ static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev,
DRM_DEBUG("IH: SDMA trap\n");
instance = sdma_v4_0_irq_id_to_seq(entry->client_id);
if (instance < 0)
return instance;
switch (entry->ring_id) {
case 0:
amdgpu_fence_process(&adev->sdma.instance[instance].ring);