{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db"
            },
            {
              "fixed": "90e9eae1b5907fa36620ffb7f4f1a4afa9333427"
            },
            {
              "fixed": "c1fa005cdf3b7ff14cdfd7d512830088a3fc256b"
            },
            {
              "fixed": "12b6d1a1715cbced2e445ca353f9c9987b8636e2"
            },
            {
              "fixed": "81241f734f0f662378f5ffc53882b012923e6fe5"
            },
            {
              "fixed": "8cc569696dac51fc62bb39b3b8f530582b916d29"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90262.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: retry verity reads for not-uptodate Merkle folios\n\nbtrfs_read_merkle_tree_page() can find a folio in the mapping that is not\nuptodate.  After taking the folio lock, the current code treats that state\nas a read error and returns -EIO.\n\nThat can make a previous transient read failure sticky.  If the failed read\nleft a not-uptodate folio in the mapping, later callers find that folio and\nfail instead of retrying the read.\n\nKeep the existing page-cache insertion and locking order, but retry the\nMerkle item read when a not-uptodate folio is found in the mapping.  Also\nunlock the folio when read_key_bytes() fails so that a later caller can\nlock it and retry the read.",
  "id": "CVE-2026-90262",
  "modified": "2026-09-18T03:30:50.126761089Z",
  "published": "2026-09-17T16:07:59.435Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12b6d1a1715cbced2e445ca353f9c9987b8636e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81241f734f0f662378f5ffc53882b012923e6fe5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cc569696dac51fc62bb39b3b8f530582b916d29"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90e9eae1b5907fa36620ffb7f4f1a4afa9333427"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1fa005cdf3b7ff14cdfd7d512830088a3fc256b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90262.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90262"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "btrfs: retry verity reads for not-uptodate Merkle folios"
}