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CVE-2026-43019 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn lookup and field access must be covered by hdev lock in set_cig_params_sync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hci_conn from being deleted or modified concurrently. Just RCU lock is not suitable here, as we also want to avoid "tearing" in the configuration.


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/66d432e9b45bae7881ffcdb12cd8fd0bf254ef02 kernel.org
https://git.kernel.org/stable/c/7d568fede8eac91161a60b710aa920abe9b0fb9f kernel.org
https://git.kernel.org/stable/c/a2639a7f0f5bf7d73f337f8f077c19415c62ed2c kernel.org
https://git.kernel.org/stable/c/bad65b4b0a96139f023eadc28a33125963208449 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43019
NVD Published Date:
05/01/2026
NVD Last Modified:
05/03/2026
Source:
kernel.org