{"cve":"CVE-2026-72218","nvd":{"published":"2026-08-15T06:21:40.613","modified":"2026-08-17T06:18:22.810","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nlockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure\n\nThe cached-file path in nlm_lookup_file() reaches the found: label\nunconditionally, even when nlm_do_fopen() fails. At that label\n*result and file->f_count are updated before the error is returned.\nThe wrappers nlm3svc_lookup_file() and nlm4svc_lookup_file() then\nbail out of their switch without copying *result back to their\ncaller, so the proc handler's local nlm_file pointer remains NULL\nand the cleanup path skips nlm_release_file(). The f_count\nincrement is never released, and nlm_traverse_files() can no\nlonger reap the file because its refcount never returns to zero\nbetween requests.\n\nShort-circuit the cached path so neither *result nor f_count is\ntouched when nlm_do_fopen() fails on a hashed nlm_file.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3a5c55a19cad62f2973be25fe96a1a9e7f618e8a","https://git.kernel.org/stable/c/46d59ff421824b6483549d87f14efffbbbd1f6cb","https://git.kernel.org/stable/c/6cd84cefd8b73e85b9eda17b319bd40a670f3a38","https://git.kernel.org/stable/c/70a38f87bed7f0694fd07988b47b2db1e10d8df3","https://git.kernel.org/stable/c/7ce4c23e783e766507b2cef27bbf97e9ca944f1a"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-72218","score":0.00216,"percentile":0.12108,"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."]}