High 7.8Published Apr 24, 2026

CVE-2026-31566drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib

Updated under an hour ago (2026-10-19 08:30 UTC)

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Exploited in the last 30 days

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)

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 9ae55f030dc523fc4dc6069557e4a887ea815453 before bc7760c107dc08ef3e231d72c492e67b0a86848b; from 9ae55f030dc523fc4dc6069557e4a887ea815453 before e23602eb0779760544314ed3905fa6a89a4e4070; from 9ae55f030dc523fc4dc6069557e4a887ea815453 before 138e42be35ff2ce6572ae744de851ea286cf3c69; from 9ae55f030dc523fc4dc6069557e4a887ea815453 before 39820864eacd886f1a6f817414fb8f9ea3e9a2b4; from 9ae55f030dc523fc4dc6069557e4a887ea815453 before 42d248726a0837640452b71c5a202ca3d35239ec; from 9ae55f030dc523fc4dc6069557e4a887ea815453 before 7150850146ebfa4ca998f653f264b8df6f7f85be	CNA record
linux linux_kernel linux:linux_kernel	from 6.0.1 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 6.0; 7.0; 7.0; and 5 more ranges	NVD

References

https://git.kernel.org/stable/c/bc7760c107dc08ef3e231d72c492e67b0a86848bpatch
https://git.kernel.org/stable/c/e23602eb0779760544314ed3905fa6a89a4e4070patch
https://git.kernel.org/stable/c/138e42be35ff2ce6572ae744de851ea286cf3c69patch
https://git.kernel.org/stable/c/39820864eacd886f1a6f817414fb8f9ea3e9a2b4patch
https://git.kernel.org/stable/c/42d248726a0837640452b71c5a202ca3d35239ecpatch
https://git.kernel.org/stable/c/7150850146ebfa4ca998f653f264b8df6f7f85bepatch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.