CVE-2026-74538

high

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in iso_connect_ind Accessing iso_pi(sk)->conn requires lock_sock, which is not taken in the "ev3" part of iso_connect_ind. It may also be NULL if socket has transitioned away from the LISTEN/CONNECT states before locking. Fix by adding lock/release. Recheck hcon is valid after lock acquire where needed.

References

https://git.kernel.org/stable/c/e8e9cff6d80eeec28dec4cf7cc18662986945391

https://git.kernel.org/stable/c/9bee7e476534f27e830658dad962d85da9edf6bf

https://git.kernel.org/stable/c/4311fd6f429065a8ba208660360a895627a00cf3

Details

Source: Mitre, NVD

Published: 2026-08-15

Updated: 2026-08-17

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00166