CVE-2026-45834
Bluetooth Null-Pointer Dereference in Linux Kernel
Publication date: 2026-05-26
Last updated on: 2026-05-26
Assigner: kernel.org
Description
Description
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a null pointer dereference issue in the Linux kernel's Bluetooth L2CAP component. Specifically, it occurs in the function l2cap_sock_state_change_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().
How can this vulnerability impact me? :
A null pointer dereference vulnerability can cause the affected system to crash or become unstable when the vulnerable code is executed. In this case, it could lead to a denial of service (DoS) condition in the Linux kernel's Bluetooth functionality, potentially disrupting Bluetooth communications or related services.