{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5aa705039c4fca84575539bfa2b8a28454a3d2ca"
            },
            {
              "fixed": "d1eda529a4bf6b866d02755723ee0eb1f037a5ed"
            },
            {
              "fixed": "c66ed3e6371f5dba8f5d8ab810d6683ddc99201e"
            },
            {
              "fixed": "db58075bc9c2ad2731f9c063859b47104bc2e7ef"
            },
            {
              "fixed": "6d92dbd73d19a0622f60352ce9d9379f7a760112"
            },
            {
              "fixed": "c6e6354295845698d2fdfa20b71fc404786f7e93"
            },
            {
              "fixed": "69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.17.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72437.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry\n\nWhen a read is retried, raid1_read_request() may be called with a\npre-allocated r1_bio. If wait_read_barrier() fails for a REQ_NOWAIT\nread, the bio is completed and the function returns immediately. In this\ncase the existing r1_bio is leaked.\n\nThis fixes a leak of pre-allocated r1_bio structures for retried reads.",
  "id": "CVE-2026-72437",
  "modified": "2026-08-18T03:30:56.554734394Z",
  "published": "2026-08-15T05:56:50.732Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d92dbd73d19a0622f60352ce9d9379f7a760112"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c66ed3e6371f5dba8f5d8ab810d6683ddc99201e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6e6354295845698d2fdfa20b71fc404786f7e93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1eda529a4bf6b866d02755723ee0eb1f037a5ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db58075bc9c2ad2731f9c063859b47104bc2e7ef"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72437.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72437"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "md/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry"
}