CVE-2025-40141
kernel: Bluetooth: ISO: Fix possible UAF on iso_conn_free
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 12, 2025
Updated · July 30, 2026
Description
A vulnerability was found in iso_sock_kill in net/bluetooth/iso.c in Bluetooth protocol stack in the Linux Kernel. In this flaw if the conn->sk is not set to NULL may lead to UAF on iso_conn_free.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
CWE-825 · Expired Pointer Dereference