CVE-2026-68259 (GCVE-0-2026-68259)
Vulnerability from cvelistv5
Published
2026-08-10 12:01
Modified
2026-08-19 16:32
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds in allocate_event_notification_slot The valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT allocate_event_notification_slot has an option to specify an event id to allocate at, used by CRIU. We weren't checking the bounds on that value. Check them. v2: Lower bounds check is unecessary because of idr_alloc already rejecting negative numbers. Upper bounds check should be KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might not yet exist (cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)
References
Impacted products
Vendor Product Version
Linux Linux Version: 40e8a766a761f7fdc8530347527b344fddf6f1a8
Version: 40e8a766a761f7fdc8530347527b344fddf6f1a8
Version: 40e8a766a761f7fdc8530347527b344fddf6f1a8
Version: 40e8a766a761f7fdc8530347527b344fddf6f1a8
Version: 40e8a766a761f7fdc8530347527b344fddf6f1a8
Version: 40e8a766a761f7fdc8530347527b344fddf6f1a8
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_events.c"
          ],
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          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "version": "0",
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              "version": "6.6.148",
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              "version": "7.1.6",
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              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionEndExcluding": "6.1.183",
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                  "vulnerable": true
                },
                {
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Check bounds in allocate_event_notification_slot\n\nThe valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT\n\nallocate_event_notification_slot has an option to specify\nan event id to allocate at, used by CRIU. We weren\u0027t checking\nthe bounds on that value.\n\nCheck them.\n\nv2: Lower bounds check is unecessary because of idr_alloc\nalready rejecting negative numbers. Upper bounds check should\nbe KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might\nnot yet exist\n\n(cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:32:28.586Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6884fc142b17f456caac50c14505f509bfbcd012"
        },
        {
          "url": "https://git.kernel.org/stable/c/85eedff5f0c4aba5a66bc37a1bd6bcecd0d77b53"
        },
        {
          "url": "https://git.kernel.org/stable/c/4622214f0542f64b02c250db0f9c677eeb032d9b"
        },
        {
          "url": "https://git.kernel.org/stable/c/50319efb865f72db45f191c8709511746d58ee0a"
        },
        {
          "url": "https://git.kernel.org/stable/c/abeeb1947d81610c65349db4d89c6151f270e136"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb52249fbbe948875155ccd45cd8d74bf4ae747b"
        }
      ],
      "title": "drm/amdkfd: Check bounds in allocate_event_notification_slot",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68259",
    "datePublished": "2026-08-10T12:01:33.110Z",
    "dateReserved": "2026-07-30T09:28:09.378Z",
    "dateUpdated": "2026-08-19T16:32:28.586Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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