CVE-2026-45834 Details
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
A null pointer dereference vulnerability has been identified in the Bluetooth L2CAP implementation of the Linux kernel. This issue arises in the 'l2cap_sock_state_change_cb()' function, where a missing null check can lead to a dereference of a null pointer. The vulnerability has been addressed by adding a null guard, similar to those already present in the 'l2cap_sock_resume_cb()' and 'l2cap_sock_ready_cb()' functions.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for upgrading the kernel can be found in the official Linux kernel documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0c17c8832562b2aac288e89cefd0f46074f54bcb | kernel.org | Patch |
| https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427 | kernel.org | Patch |
| https://git.kernel.org/stable/c/1b1c0da227bf63479bac9982fc8d12df9aaea0fb | kernel.org | Patch |
| https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbf | kernel.org | Patch |
| https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952 | kernel.org | Patch |
| https://git.kernel.org/stable/c/85426e97dc72f2088ba6d27e74cd58c3fbd43e31 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127b | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.1, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.140 >= 6.7, < 6.12.88 >= 6.13, < 6.18.30 >= 6.19, < 7.0.7 7.1 rc1 7.1 rc2 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 26, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 1, 2026 | CVE Modified | kernel.org |
| May 26, 2026 | New CVE Received | kernel.org |