{"cve":"CVE-2026-98907","nvd":{"published":"2026-10-23T12:18:24.793","modified":"2026-10-26T07:17:16.060","status":"Received","description":"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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/123b9a545f4d0348e81f558a032bf2a93ee5722f","https://git.kernel.org/stable/c/80cd97c5e90096d040a623851795eac92fbd0ff1"],"products":[],"source":"nvd","synced_at":"2026-10-26T07:33:01.631659812+00:00"},"epss":{"cve":"CVE-2026-98907","score":0.00179,"percentile":0.07396,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}