{"cve":"CVE-2025-21736","nvd":{"published":"2025-02-27T03:15:14.230","modified":"2026-06-17T08:44:09.370","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix possible int overflows in nilfs_fiemap()\n\nSince nilfs_bmap_lookup_contig() in nilfs_fiemap() calculates its result\nby being prepared to go through potentially maxblocks == INT_MAX blocks,\nthe value in n may experience an overflow caused by left shift of blkbits.\n\nWhile it is extremely unlikely to occur, play it safe and cast right hand\nexpression to wider type to mitigate the issue.\n\nFound by Linux Verification Center (linuxtesting.org) with static analysis\ntool SVACE.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-190"],"references":["https://git.kernel.org/stable/c/250423300b4b0335918be187ef3cade248c06e6a","https://git.kernel.org/stable/c/58b1c6881081f5ddfb9a14dc241a74732c0f855c","https://git.kernel.org/stable/c/6438ef381c183444f7f9d1de18f22661cba1e946","https://git.kernel.org/stable/c/7649937987fed51ed09985da4019d50189fc534e","https://git.kernel.org/stable/c/8f41df5fd4c11d26e929a85f7239799641f92da7"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2025-21736","score":0.00254,"percentile":0.17048,"date":"2026-11-01"},"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."]}