{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3c20917120ce61f2a123ca0810293872f4c6b5a4"
            },
            {
              "fixed": "80cd97c5e90096d040a623851795eac92fbd0ff1"
            },
            {
              "fixed": "123b9a545f4d0348e81f558a032bf2a93ee5722f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98907.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: protect sb_write_pointer() with invalidate lock\n\nsb_write_pointer() reads the super block from the block device page cache\nusing read_cache_page_gfp(). This has the same race with BLKBSZSET as the\none fixed by commit 3f29d661e568 (\"btrfs: sync read disk super and set\nblock size\").\n\nTake the mapping invalidate lock around read_cache_page_gfp() to\nserialize the read against block size changes.",
  "id": "CVE-2026-98907",
  "modified": "2026-10-28T02:30:55.750657949Z",
  "published": "2026-10-23T11:54:44.224Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/123b9a545f4d0348e81f558a032bf2a93ee5722f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80cd97c5e90096d040a623851795eac92fbd0ff1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98907.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98907"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.2",
  "summary": "btrfs: protect sb_write_pointer() with invalidate lock"
}