{"cve":"CVE-2026-98872","nvd":{"published":"2026-10-23T12:18:20.623","modified":"2026-10-26T07:17:11.603","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfreevxfs: don't BUG() on unknown typed-extent type\n\nvxfs_bmap_typed() handles four typed-extent types and calls BUG() in\nits default case, so an on-disk typed extent with any other type value\ncrashes the kernel. It is reachable from ioctl(FIBMAP) on a regular\nfile:\n\n  kernel BUG at fs/freevxfs/vxfs_bmap.c:230!\n  RIP: vxfs_bmap_typed fs/freevxfs/vxfs_bmap.c:230 [inline]\n       vxfs_bmap1+0x128a/0x12d0 fs/freevxfs/vxfs_bmap.c:257\n\nReplace the BUG() with WARN_ON_ONCE() and return 0 -- the value\nvxfs_bmap_typed() already returns on failure (and from the DEV4 case\nabove); vxfs_getblk() maps 0 to -EIO, so the ioctl fails cleanly.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/1284d687d46953fff9c0d969df108114611aca8b","https://git.kernel.org/stable/c/405f13d7b270913e06e8e2b4de568985f94ef7d6","https://git.kernel.org/stable/c/500e9d5bf9eff2096a21b7ac25a0a06ca46ab821","https://git.kernel.org/stable/c/704d48d81dc41470e108811c32c577ada66192d4","https://git.kernel.org/stable/c/7ada9807e37103b41f586d34e3075e1209182b65"],"products":[],"source":"nvd","synced_at":"2026-10-26T07:33:01.631659812+00:00"},"epss":{"cve":"CVE-2026-98872","score":0.00213,"percentile":0.11498,"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."]}