{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5ab829f1971dc99f2aac10846c378e67fc875abc"
            },
            {
              "fixed": "870b9f15867b0e70f3459ef3974b043e8b229690"
            },
            {
              "fixed": "28ef299e7a5b81817f8ca8297c2ddff28f5da5e8"
            },
            {
              "fixed": "cd1635d844d26471c56c0a432abdee12fc9ad735"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45953.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: fix IO hang with degraded array with llbitmap\n\nWhen llbitmap bit state is still unwritten, any new write should force\nrcw, as bitmap_ops-\u003eblocks_synced() is checked in handle_stripe_dirtying().\nHowever, later the same check is missing in need_this_block(), causing\nstripe to deadloop during handling because handle_stripe() will decide\nto go to handle_stripe_fill(), meanwhile need_this_block() always return\n0 and nothing is handled.",
  "id": "CVE-2026-45953",
  "modified": "2026-07-08T05:37:20.078905039Z",
  "published": "2026-05-27T12:18:09.203Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28ef299e7a5b81817f8ca8297c2ddff28f5da5e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/870b9f15867b0e70f3459ef3974b043e8b229690"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd1635d844d26471c56c0a432abdee12fc9ad735"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45953.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45953"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "md/raid5: fix IO hang with degraded array with llbitmap"
}