Vulnerability-Lookup

FKIE_CVE-2026-31566

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-27 20:32

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

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)

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/138e42be35ff2ce6572ae744de851ea286cf3c69	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/39820864eacd886f1a6f817414fb8f9ea3e9a2b4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/42d248726a0837640452b71c5a202ca3d35239ec	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7150850146ebfa4ca998f653f264b8df6f7f85be	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bc7760c107dc08ef3e231d72c492e67b0a86848b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e23602eb0779760544314ed3905fa6a89a4e4070	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib\n\namdgpu_amdkfd_submit_ib() submits a GPU job and gets a fence\nfrom amdgpu_ib_schedule(). This fence is used to wait for job\ncompletion.\n\nCurrently, the code drops the fence reference using dma_fence_put()\nbefore calling dma_fence_wait().\n\nIf dma_fence_put() releases the last reference, the fence may be\nfreed before dma_fence_wait() is called. This can lead to a\nuse-after-free.\n\nFix this by waiting on the fence first and releasing the reference\nonly after dma_fence_wait() completes.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c:697 amdgpu_amdkfd_submit_ib() warn: passing freed memory \u0027f\u0027 (line 696)\n\n(cherry picked from commit 8b9e5259adc385b61a6590a13b82ae0ac2bd3482)"
    }
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  "id": "CVE-2026-31566",
  "lastModified": "2026-04-27T20:32:14.757",
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          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2026-04-24T15:16:31.077",
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}

CVE-2026-31566 (GCVE-0-2026-31566)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:35 – Updated: 2026-05-11 22:11

Title

drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/bc7760c107dc08ef3…
https://git.kernel.org/stable/c/e23602eb077976054…
https://git.kernel.org/stable/c/138e42be35ff2ce65…
https://git.kernel.org/stable/c/39820864eacd886f1…
https://git.kernel.org/stable/c/42d248726a0837640…
https://git.kernel.org/stable/c/7150850146ebfa4ca…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9ae55f030dc523fc4dc6069557e4a887ea815453 , < bc7760c107dc08ef3e231d72c492e67b0a86848b (git) Affected: 9ae55f030dc523fc4dc6069557e4a887ea815453 , < e23602eb0779760544314ed3905fa6a89a4e4070 (git) Affected: 9ae55f030dc523fc4dc6069557e4a887ea815453 , < 138e42be35ff2ce6572ae744de851ea286cf3c69 (git) Affected: 9ae55f030dc523fc4dc6069557e4a887ea815453 , < 39820864eacd886f1a6f817414fb8f9ea3e9a2b4 (git) Affected: 9ae55f030dc523fc4dc6069557e4a887ea815453 , < 42d248726a0837640452b71c5a202ca3d35239ec (git) Affected: 9ae55f030dc523fc4dc6069557e4a887ea815453 , < 7150850146ebfa4ca998f653f264b8df6f7f85be (git)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c"
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    "dateReserved": "2026-03-09T15:48:24.117Z",
    "dateUpdated": "2026-05-11T22:11:15.929Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31566

CVE-2026-31566 (GCVE-0-2026-31566)

Tags

Sightings

Nomenclature