Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before 72d77ddb2224ebc00648f4f78f8a9a259dccbdf7; affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before 4009f104b02b223d1a11d74b36b1cc083bc37028; affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before 927beb05aaa429c883cc0ec6adc48964b187e291; affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before 3edd8646cb7c11b57c90e026bda6f21076223f5b; affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf; affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before bc2d5c0775c839e2b072884f4ee6a93ba410f107; affected 7ca24cf2d2269bde25e21c02a77fe81995a081ae before dfced44f122c500004a48ecc8db516bb6a295a1b |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 4.19.238 through 4.19.*; unaffected 5.4.189 through 5.4.*; unaffected 5.10.111 through 5.10.*; unaffected 5.15.34 through 5.15.*; unaffected 5.16.20 through 5.16.*; unaffected 5.17.3 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/72d77ddb2224ebc00648f4f78f8a9a259dccbdf7
- https://git.kernel.org/stable/c/4009f104b02b223d1a11d74b36b1cc083bc37028
- https://git.kernel.org/stable/c/927beb05aaa429c883cc0ec6adc48964b187e291
- https://git.kernel.org/stable/c/3edd8646cb7c11b57c90e026bda6f21076223f5b
- https://git.kernel.org/stable/c/b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf
- https://git.kernel.org/stable/c/bc2d5c0775c839e2b072884f4ee6a93ba410f107
- https://git.kernel.org/stable/c/dfced44f122c500004a48ecc8db516bb6a295a1b
ADP enrichment
No English description supplied.
No references supplied.