Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib amdgpu_amdkfd_submit_ib() submits a GPU job and gets a fence from amdgpu_ib_schedule(). This fence is used to wait for job completion. Currently, the code drops the fence reference using dma_fence_put() before calling dma_fence_wait(). If dma_fence_put() releases the last reference, the fence may be freed before dma_fence_wait() is called. This can lead to a use-after-free. Fix this by waiting on the fence first and releasing the reference only after dma_fence_wait() completes. Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c:697 amdgpu_amdkfd_submit_ib() warn: passing freed memory 'f' (line 696) (cherry picked from commit 8b9e5259adc385b61a6590a13b82ae0ac2bd3482)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9ae55f030dc523fc4dc6069557e4a887ea815453 before bc7760c107dc08ef3e231d72c492e67b0a86848b; affected 9ae55f030dc523fc4dc6069557e4a887ea815453 before e23602eb0779760544314ed3905fa6a89a4e4070; affected 9ae55f030dc523fc4dc6069557e4a887ea815453 before 138e42be35ff2ce6572ae744de851ea286cf3c69; affected 9ae55f030dc523fc4dc6069557e4a887ea815453 before 39820864eacd886f1a6f817414fb8f9ea3e9a2b4; affected 9ae55f030dc523fc4dc6069557e4a887ea815453 before 42d248726a0837640452b71c5a202ca3d35239ec; affected 9ae55f030dc523fc4dc6069557e4a887ea815453 before 7150850146ebfa4ca998f653f264b8df6f7f85be |
| Linux / Linux | affected 6.0; unaffected 0 before 6.0; unaffected 6.1.168 through 6.1.*; unaffected 6.6.131 through 6.6.*; unaffected 6.12.80 through 6.12.*; unaffected 6.18.21 through 6.18.*; unaffected 6.19.11 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bc7760c107dc08ef3e231d72c492e67b0a86848b
- https://git.kernel.org/stable/c/e23602eb0779760544314ed3905fa6a89a4e4070
- https://git.kernel.org/stable/c/138e42be35ff2ce6572ae744de851ea286cf3c69
- https://git.kernel.org/stable/c/39820864eacd886f1a6f817414fb8f9ea3e9a2b4
- https://git.kernel.org/stable/c/42d248726a0837640452b71c5a202ca3d35239ec
- https://git.kernel.org/stable/c/7150850146ebfa4ca998f653f264b8df6f7f85be
ADP enrichment
No English description supplied.
No references supplied.