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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-31566 Detail

Description

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)


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/138e42be35ff2ce6572ae744de851ea286cf3c69 kernel.org Patch 
https://git.kernel.org/stable/c/39820864eacd886f1a6f817414fb8f9ea3e9a2b4 kernel.org Patch 
https://git.kernel.org/stable/c/42d248726a0837640452b71c5a202ca3d35239ec kernel.org Patch 
https://git.kernel.org/stable/c/7150850146ebfa4ca998f653f264b8df6f7f85be kernel.org Patch 
https://git.kernel.org/stable/c/bc7760c107dc08ef3e231d72c492e67b0a86848b kernel.org Patch 
https://git.kernel.org/stable/c/e23602eb0779760544314ed3905fa6a89a4e4070 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31566
NVD Published Date:
04/24/2026
NVD Last Modified:
04/27/2026
Source:
kernel.org