MediumFix available
drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj This issue takes place in an error path in amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into default case, the function simply returns -EINVAL, forgetting to decrement the reference count of a dma_fence obj, which is bumped earlier by amdgpu_cs_get_fence(). This may result in reference count leaks. Fix it by decreasing the refcount of specific object before returning the error code.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.19.238, 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.4.189
- CVEs
- CVE-2022-49137
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 15:27 UTC · Revision 1
Source evidence
drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
core-osv · Original sourcePublished 26 Feb 2025, 01:55 UTC
In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj This issue takes place in an error path in amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into default case, the function simply returns -EINVAL, forgetting to decrement the reference count of a dma_fence obj, which is bumped earlier by amdgpu_cs_get_fence(). This may result in reference count leaks. Fix it by decreasing the refcount of specific object before returning the error code.
osv:CVE-2022-49137
Kernel
Fixed versions: 4.19.238, 5.4.189, 5.10.111, 5.15.34, 5.16.20, 5.17.3
Complete source record
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"summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj This issue takes place in an error path in amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into default case, the function simply returns -EINVAL, forgetting to decrement the reference count of a dma_fence obj, which is bumped earlier by amdgpu_cs_get_fence(). This may result in reference count leaks. Fix it by decreasing the refcount of specific object before returning the error code.",
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"modified": "2026-10-28T02:30:20.649388462Z",
"provider": "osv",
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"source_id": "core-osv",
"document_id": 486498,
"published_at": "2025-02-26T01:55:10.03+00:00"
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