CVE Watch19 oct 2026

CVE-2026-43019

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn

CVSS

7.8

Alto

EPSS

0.1%

KEV

—

Exploit Today

0-100

Publicado: 1 may 2026 · Última mod.: 19 oct 2026 · CWE-416 · CWE-362

EPSS · 30d

0.1%EPSS · 30 días0.2%

2026-10-032026-10-31

Descripción técnica

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.

Referencias oficiales

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