CVE-2026-64080Critical· 9.3▾ MidnightIn 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 d…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 51.2 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.1%
0.1% → 0.2%
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.
linux_kernel >= 6.15, < 6.18.34linux_kernel >= 6.19, < 7.0.11linux_kernel = 7.1Upgrade past the affected range:
linux_kernel 7.0.11Connected by shared product, vendor, weakness, or advisory.
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