CVE-2026-31462 (GCVE-0-2026-31462)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-04-23 15:18
VLAI?
Title
drm/amdgpu: prevent immediate PASID reuse case
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: prevent immediate PASID reuse case PASID resue could cause interrupt issue when process immediately runs into hw state left by previous process exited with the same PASID, it's possible that page faults are still pending in the IH ring buffer when the process exits and frees up its PASID. To prevent the case, it uses idr cyclic allocator same as kernel pid's. (cherry picked from commit 8f1de51f49be692de137c8525106e0fce2d1912d)
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < c0b3882836de8ac991b626823966f385555bbcff (git)
Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < 51ccaf0e30c303149244c34820def83d74c86288 (git)
Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < 9e5ebfe99b223bb0eb9c50a125c9c02f4ef4c71b (git)
Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < 14b81abe7bdc25f8097906fc2f91276ffedb2d26 (git)
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    Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (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)
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          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c",
            "drivers/gpu/drm/amd/amdgpu/amdgpu_ids.h",
            "drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c"
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            "drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: prevent immediate PASID reuse case\n\nPASID resue could cause interrupt issue when process\nimmediately runs into hw state left by previous\nprocess exited with the same PASID, it\u0027s possible that\npage faults are still pending in the IH ring buffer when\nthe process exits and frees up its PASID. To prevent the\ncase, it uses idr cyclic allocator same as kernel pid\u0027s.\n\n(cherry picked from commit 8f1de51f49be692de137c8525106e0fce2d1912d)"
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        "dateUpdated": "2026-04-23T15:18:32.680Z",
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    "cveId": "CVE-2026-31462",
    "datePublished": "2026-04-22T13:53:53.542Z",
    "dateReserved": "2026-03-09T15:48:24.092Z",
    "dateUpdated": "2026-04-23T15:18:32.680Z",
    "state": "PUBLISHED"
  },
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Sightings

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  • 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.