{"cve":"CVE-2024-47757","nvd":{"published":"2024-10-21T13:15:05.640","modified":"2026-06-17T07:57:41.910","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix potential oob read in nilfs_btree_check_delete()\n\nThe function nilfs_btree_check_delete(), which checks whether degeneration\nto direct mapping occurs before deleting a b-tree entry, causes memory\naccess outside the block buffer when retrieving the maximum key if the\nroot node has no entries.\n\nThis does not usually happen because b-tree mappings with 0 child nodes\nare never created by mkfs.nilfs2 or nilfs2 itself.  However, it can happen\nif the b-tree root node read from a device is configured that way, so fix\nthis potential issue by adding a check for that case.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/257f9e5185eb6de83377caea686c306e22e871f2","https://git.kernel.org/stable/c/a33e967b681e088a125b979975c93e3453e686cd","https://git.kernel.org/stable/c/a8abfda768b9f33630cfbc4af6c4214f1e5681b0","https://git.kernel.org/stable/c/c4cbcc64bb31e67e02940ce060cc77f7180564cf","https://git.kernel.org/stable/c/c4f8554996e8ada3be872dfb8f60e93bcf15fb27"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:56:33.105311382+00:00"},"epss":{"cve":"CVE-2024-47757","score":0.00239,"percentile":0.15042,"date":"2026-10-31"},"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."]}