CVE-2026-64080

Katalog CVE

CVSS 9.3 · Critical EPSS 0,20%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 9.3 (Critical) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

3 September 2026

Status NVD

Analyzed

CVSS 3.1

9.3 (Critical), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 8,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0e7be42ef2490f19d859a6146324d48cafdc9d5c patch
• https://git.kernel.org/stable/c/38290b180a4d5746baed796d49f88d56d2f336cd patch
• https://git.kernel.org/stable/c/d1e38551fadea230649bc428f0f35c9ee062a072 patch