Vulnerability-Lookup

GHSA-F9H6-FPHQ-W3RH

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-05-07 21:30

Details

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

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31462"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:41Z",
    "severity": "MODERATE"
  },
  "details": "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)",
  "id": "GHSA-f9h6-fphq-w3rh",
  "modified": "2026-05-07T21:30:23Z",
  "published": "2026-04-22T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31462"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14b81abe7bdc25f8097906fc2f91276ffedb2d26"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51ccaf0e30c303149244c34820def83d74c86288"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e5ebfe99b223bb0eb9c50a125c9c02f4ef4c71b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0b3882836de8ac991b626823966f385555bbcff"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:09

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

Linux mitre root Scorecard

References

4 references

URL	Tags
https://git.kernel.org/stable/c/c0b3882836de8ac99…
https://git.kernel.org/stable/c/51ccaf0e30c303149…
https://git.kernel.org/stable/c/9e5ebfe99b223bb0e…
https://git.kernel.org/stable/c/14b81abe7bdc25f80…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < c0b3882836de8ac991b626823966f385555bbcff (git) Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < 51ccaf0e30c303149244c34820def83d74c86288 (git) Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < 9e5ebfe99b223bb0eb9c50a125c9c02f4ef4c71b (git) Affected: 02208441cc3a5110191996bb129db39ff10e7395 , < 14b81abe7bdc25f8097906fc2f91276ffedb2d26 (git)
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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "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"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c0b3882836de8ac991b626823966f385555bbcff",
              "status": "affected",
              "version": "02208441cc3a5110191996bb129db39ff10e7395",
              "versionType": "git"
            },
            {
              "lessThan": "51ccaf0e30c303149244c34820def83d74c86288",
              "status": "affected",
              "version": "02208441cc3a5110191996bb129db39ff10e7395",
              "versionType": "git"
            },
            {
              "lessThan": "9e5ebfe99b223bb0eb9c50a125c9c02f4ef4c71b",
              "status": "affected",
              "version": "02208441cc3a5110191996bb129db39ff10e7395",
              "versionType": "git"
            },
            {
              "lessThan": "14b81abe7bdc25f8097906fc2f91276ffedb2d26",
              "status": "affected",
              "version": "02208441cc3a5110191996bb129db39ff10e7395",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "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"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.80",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.21",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:09:11.635Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c0b3882836de8ac991b626823966f385555bbcff"
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          "url": "https://git.kernel.org/stable/c/51ccaf0e30c303149244c34820def83d74c86288"
        },
        {
          "url": "https://git.kernel.org/stable/c/9e5ebfe99b223bb0eb9c50a125c9c02f4ef4c71b"
        },
        {
          "url": "https://git.kernel.org/stable/c/14b81abe7bdc25f8097906fc2f91276ffedb2d26"
        }
      ],
      "title": "drm/amdgpu: prevent immediate PASID reuse case",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31462",
    "datePublished": "2026-04-22T13:53:53.542Z",
    "dateReserved": "2026-03-09T15:48:24.092Z",
    "dateUpdated": "2026-05-11T22:09:11.635Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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GHSA-F9H6-FPHQ-W3RH

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

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