VULNERABILITY INTELLIGENCE
CVE-2026-64080
CVSS score9.3 CRITICAL
EPSS probability0.20%
CISA KEVNot currently listed
Published2026-07-19
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Snapshot notifier callbacks under lock Both notification handlers currently look up a notifier callback under notify_lock, drop the lock, and then dereference the returned notifier entry. A concurrent unregister can delete and free that entry in the gap, leaving the handler to dereference stale memory. Copy the callback pointer and callback data while notify_lock is still held and invoke the callback only after the lock is dropped. This keeps the existing callback execution model while removing the use-after-free window in both the framework and non-framework notification paths.
Weakness classification
- nvd@nist.gov: CWE-416