{"cve":"CVE-2025-68744","nvd":{"published":"2025-12-24T13:16:29.343","modified":"2026-10-13T10:10:00.193","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Free special fields when update [lru_,]percpu_hash maps\n\nAs [lru_,]percpu_hash maps support BPF_KPTR_{REF,PERCPU}, missing\ncalls to 'bpf_obj_free_fields()' in 'pcpu_copy_value()' could cause the\nmemory referenced by BPF_KPTR_{REF,PERCPU} fields to be held until the\nmap gets freed.\n\nFix this by calling 'bpf_obj_free_fields()' after\n'copy_map_value[,_long]()' in 'pcpu_copy_value()'.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3bf1378747e251571e0de15e7e0a6bf2919044e7","https://git.kernel.org/stable/c/4a03d69cece145e4fb527464be29c3806aa3221e","https://git.kernel.org/stable/c/6af6e49a76c9af7d42eb923703e7648cb2bf401a","https://git.kernel.org/stable/c/96a5cb7072cabbac5c66ac9318242c3bdceebb68","https://git.kernel.org/stable/c/994d6303ed0b84cbc795bb5becf7ed6de40d3f3c"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2025-68744","score":0.00187,"percentile":0.08256,"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."]}