{"cve":"CVE-2025-40103","nvd":{"published":"2025-10-30T10:15:34.693","modified":"2026-10-19T21:10:00.160","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Fix refcount leak for cifs_sb_tlink\n\nFix three refcount inconsistency issues related to `cifs_sb_tlink`.\n\nComments for `cifs_sb_tlink` state that `cifs_put_tlink()` needs to be\ncalled after successful calls to `cifs_sb_tlink()`. Three calls fail to\nupdate refcount accordingly, leading to possible resource leaks.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/790282abe9d805f08618c1c24ea2529e7259b692","https://git.kernel.org/stable/c/896bb31e1416f582503db1350cf1bd10dc64e5a6","https://git.kernel.org/stable/c/c2b77f42205ef485a647f62082c442c1cd69d3fc","https://git.kernel.org/stable/c/d3c8ea197055c260119a13360e8202a27e53e1e4","https://git.kernel.org/stable/c/d7dd034c14928306db1b46be277ae439b84dacf9"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-40103","score":0.00206,"percentile":0.10637,"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."]}