CVE-2026-31408

Katalog CVE

CVSS 8.8 · High EPSS 0,40%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 8.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold sco_recv_frame() reads conn->sk under sco_conn_lock() but immediately releases the lock without holding a reference to the socket. A concurrent close() can free the socket between the lock release and the subsequent sk->sk_state access, resulting in a use-after-free. Other functions in the same file (sco_sock_timeout(), sco_conn_del()) correctly use sco_sock_hold() to safely hold a reference under the lock. Fix by using sco_sock_hold() to take a reference before releasing the lock, and adding sock_put() on all exit paths.

Rincian

Terbit di NVD

6 April 2026

Terakhir diubah

19 Agustus 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/108b81514d8f2535eb16651495cefb2250528db3 patch
• https://git.kernel.org/stable/c/45aaca995e4a7a05b272a58e7ab2fff4f611b8f1 patch
• https://git.kernel.org/stable/c/598dbba9919c5e36c54fe1709b557d64120cb94b patch
• https://git.kernel.org/stable/c/7197462e90b8ce15caa1ae15d4bc2bb8cd21b11e patch
• https://git.kernel.org/stable/c/b0a7da0e3f7442545f071499beb36374714bb9de patch
• https://git.kernel.org/stable/c/d57384e27d1ebf0047e3f00a6e1181b8be9857a2 patch
• https://git.kernel.org/stable/c/e76e8f0581ef555eacc11dbb095e602fb30a5361 patch
• https://git.kernel.org/stable/c/37e18bc8c9a70d77bd099e2273f328b3bc7f6d0d