{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/ublk_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "63335e5a67d89bb7cb9b023bbb3785896587a648",
              "status": "affected",
              "version": "728cbac5fe219d3b8a21a0688a08f2b7f8aeda2b",
              "versionType": "git"
            },
            {
              "lessThan": "0842186d2c4e67d2f8c8c2d1d779e8acffd41b5b",
              "status": "affected",
              "version": "728cbac5fe219d3b8a21a0688a08f2b7f8aeda2b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "42ea64e01c96e594fb4f80c54dfe4f934d008a6e",
              "versionType": "git"
            },
            {
              "lessThan": "6.15",
              "status": "affected",
              "version": "6.14.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/ublk_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: reset per-IO canceled flag on each fetch\n\nIf a ublk server starts recovering devices but dies before issuing fetch\ncommands for all IOs, cancellation of the fetch commands that were\nsuccessfully issued may never complete. This is because the per-IO\ncanceled flag can remain set even after the fetch for that IO has been\nsubmitted - the per-IO canceled flags for all IOs in a queue are reset\ntogether only once all IOs for that queue have been fetched. So if a\nnonempty proper subset of the IOs for a queue are fetched when the ublk\nserver dies, the IOs in that subset will never successfully be canceled,\nas their canceled flags remain set, and this prevents ublk_cancel_cmd\nfrom actually calling io_uring_cmd_done on the commands, despite the\nfact that they are outstanding.\n\nFix this by resetting the per-IO cancel flags immediately when each IO\nis fetched instead of waiting for all IOs for the queue (which may never\nhappen)."
    }
  ],
  "id": "CVE-2026-53124",
  "lastModified": "2026-06-24T17:17:27.387",
  "metrics": {},
  "published": "2026-06-24T17:17:27.387",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0842186d2c4e67d2f8c8c2d1d779e8acffd41b5b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/63335e5a67d89bb7cb9b023bbb3785896587a648"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-53124"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:27Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: reset per-IO canceled flag on each fetch\n\nIf a ublk server starts recovering devices but dies before issuing fetch\ncommands for all IOs, cancellation of the fetch commands that were\nsuccessfully issued may never complete. This is because the per-IO\ncanceled flag can remain set even after the fetch for that IO has been\nsubmitted - the per-IO canceled flags for all IOs in a queue are reset\ntogether only once all IOs for that queue have been fetched. So if a\nnonempty proper subset of the IOs for a queue are fetched when the ublk\nserver dies, the IOs in that subset will never successfully be canceled,\nas their canceled flags remain set, and this prevents ublk_cancel_cmd\nfrom actually calling io_uring_cmd_done on the commands, despite the\nfact that they are outstanding.\n\nFix this by resetting the per-IO cancel flags immediately when each IO\nis fetched instead of waiting for all IOs for the queue (which may never\nhappen).",
  "id": "GHSA-xq85-jg4p-xf7w",
  "modified": "2026-06-24T18:32:48Z",
  "published": "2026-06-24T18:32:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53124"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0842186d2c4e67d2f8c8c2d1d779e8acffd41b5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63335e5a67d89bb7cb9b023bbb3785896587a648"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}