CVE-2025-38473: Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb()
Bluetooth: Fix null-ptr-deref in l2capsockresumecb()
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1 - Compensating control
In Bluetooth l2cap_sock_resume_cb(), check whether chan->data is NULL before accessing the socket, avoiding access to a killed socket.
Event History
Frequently Asked Questions
What is the severity of CVE-2025-38473?
CVE-2025-38473 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2025-38473?
To fix CVE-2025-38473, update your Linux kernel to the latest version that includes the patch for this vulnerability.
What type of vulnerability is CVE-2025-38473?
CVE-2025-38473 is a null pointer dereference vulnerability occurring in the Bluetooth module of the Linux kernel.
What systems are affected by CVE-2025-38473?
CVE-2025-38473 affects various versions of the Linux kernel where Bluetooth functionality is utilized.
Who reported CVE-2025-38473?
CVE-2025-38473 was reported by the syzbot as a null pointer dereference issue.