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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-64406 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in bt_accept_dequeue() bt_accept_get() takes a temporary reference before dropping the accept queue lock. bt_accept_dequeue() currently drops that reference before bt_accept_unlink(), leaving only the queue reference. bt_accept_unlink() drops the queue reference. The subsequent sock_hold() therefore accesses freed memory if it was the final reference, as observed by KASAN during listening L2CAP socket cleanup. Retain the temporary queue-walk reference through unlink and hand it to the caller on success. Drop it explicitly on the closed and not-yet-connected paths.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0a98ff4e7b867f72fbb4e1237d81e9fa02ded0a0 kernel.org
https://git.kernel.org/stable/c/26168db1ce5a9766cde021b18e590a101c056614 kernel.org
https://git.kernel.org/stable/c/4bd0b274054f2679f28b70222b607bb0afc3ab9a kernel.org
https://git.kernel.org/stable/c/50c662bdcd51b03033a0abed6716bfd377ba1049 kernel.org
https://git.kernel.org/stable/c/6303ed4bbe0095f4cc195225479bf506e010d1db kernel.org
https://git.kernel.org/stable/c/96ad400d5132eb333f28f6f1e2d58f0728ca9547 kernel.org
https://git.kernel.org/stable/c/c0577c55219be42b6ea2ea8db11e85bfab6f4e8d kernel.org
https://git.kernel.org/stable/c/c66a95e60b65d876a927123b0ed36bd6177d9ca6 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-64406
NVD Published Date:
07/25/2026
NVD Last Modified:
07/25/2026
Source:
kernel.org