CVE-2026-45835
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Bluetooth: Fix Null Pointer Dereference in L2CAP Socket Connection

Publication date: 2026-05-26

Last updated on: 2026-06-01

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
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Meta Information
Published
2026-05-26
Last Modified
2026-06-01
Generated
2026-06-16
AI Q&A
2026-05-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-45835
EUVD
EUVD-2026-31857
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a null pointer dereference issue in the Linux kernel's Bluetooth L2CAP component, specifically in the function l2cap_sock_new_connection_cb().

The fix involved adding a NULL pointer guard similar to those already present in related functions l2cap_sock_resume_cb() and l2cap_sock_ready_cb().

Impact Analysis

A null pointer dereference vulnerability can cause the affected system to crash or become unstable when the vulnerable code is executed.

In this case, exploitation could lead to denial of service (DoS) conditions in the Linux kernel's Bluetooth stack.

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