CVE-2026-63975

Katalog CVE

CVSS 8.8 · High EPSS 0,35%

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: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2cap_chan_del may invalidate the tmp cursor created by list_for_each_entry_safe and in fact it is the wrong procedure as the chan->dcid may be assigned previously it really needs to be disconnected. Calling l2cap_chan_clone directly may still lead to l2cap_chan_del so instead schedule l2cap_chan_timeout with delay 0 to close the channel asynchronously.

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

2 Oktober 2026

Status NVD

Analyzed

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)

0,35% peluang dieksploitasi; lebih tinggi dari 27,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b patch
• https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00 patch
• https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479 patch
• https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa patch
• https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642 patch
• https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5 patch
• https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6 patch
• https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48 patch