CVE-2026-31462 (GCVE-0-2026-31462)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-05-11 22:09
Severity ?
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)
References
Impacted products
Vendor Product Version
Linux Linux Version: 02208441cc3a5110191996bb129db39ff10e7395
Version: 02208441cc3a5110191996bb129db39ff10e7395
Version: 02208441cc3a5110191996bb129db39ff10e7395
Version: 02208441cc3a5110191996bb129db39ff10e7395
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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",
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            },
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              "versionType": "git"
            },
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              "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:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "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": [
        {
          "url": "https://git.kernel.org/stable/c/c0b3882836de8ac991b626823966f385555bbcff"
        },
        {
          "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"
      }
    }
  },
  "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"
}


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