{"cve":"CVE-2026-64080","nvd":{"published":"2026-07-19T16:17:48.607","modified":"2026-09-03T13:08:19.890","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Snapshot notifier callbacks under lock\n\nBoth notification handlers currently look up a notifier callback under\nnotify_lock, drop the lock, and then dereference the returned\nnotifier entry. A concurrent unregister can delete and free that\nentry in the gap, leaving the handler to dereference stale memory.\n\nCopy the callback pointer and callback data while notify_lock is\nstill held and invoke the callback only after the lock is dropped.\nThis keeps the existing callback execution model while removing the\nuse-after-free window in both the framework and non-framework\nnotification paths.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":9.3},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/0e7be42ef2490f19d859a6146324d48cafdc9d5c","https://git.kernel.org/stable/c/38290b180a4d5746baed796d49f88d56d2f336cd","https://git.kernel.org/stable/c/d1e38551fadea230649bc428f0f35c9ee062a072"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:45:36.895656543+00:00"},"epss":{"cve":"CVE-2026-64080","score":0.00198,"percentile":0.09652,"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."]}