CVE-2026-31566

HIGH EPSS 2.6%
Published Apr 24, 20262mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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)

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥6.0.1  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.131
linuxlinux_kernel*≥6.7  –  <6.12.80
linuxlinux_kernel*≥6.13  –  <6.18.21
linuxlinux_kernel*≥6.19  –  <6.19.11
linuxlinux_kernel6.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/138e42be35ff2ce6572ae744de851ea286cf3c69
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39820864eacd886f1a6f817414fb8f9ea3e9a2b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/42d248726a0837640452b71c5a202ca3d35239ec
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7150850146ebfa4ca998f653f264b8df6f7f85be
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bc7760c107dc08ef3e231d72c492e67b0a86848b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e23602eb0779760544314ed3905fa6a89a4e4070
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/138e42be35ff2ce6572ae744de851ea286cf3c69
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39820864eacd886f1a6f817414fb8f9ea3e9a2b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/42d248726a0837640452b71c5a202ca3d35239ec
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7150850146ebfa4ca998f653f264b8df6f7f85be
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bc7760c107dc08ef3e231d72c492e67b0a86848b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e23602eb0779760544314ed3905fa6a89a4e4070
    Patch