CVE-2026-68394

In CVE-2026-68394, the Linux kernel Bluetooth MGMT path had a use-after-free in conn_update_sync triggered by MGMT_OP_LOAD_CONN_PARAM queuing a param update. The queued work incorrectly kept a borrowed hci_conn_params pointer; if userspace freed the entry before the callback ran, a use-after-free...

CVE-2026-64433

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix UAF of hciconnparams in adddevicecomplete adddevicecomplete runs from the hcicmdsyncwork kworker, which holds only hcireqsynclock and not hcidevlock. It calls hciconnparamslookup and then dereferences the...

Linux Distros Unpatched Vulnerability : CVE-2026-64433

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: MGMT: Fix UAF of hciconnparams in adddevicecomplete adddevicecomplete runs from the hcicmdsyncwork kworker, which holds only hcireqsynclock and not...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005561)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005561 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Add error handling to pairdevice hciconnparamsadd never checks for a NULL value...

CVE-2023-53252 Bluetooth: use RCU for hci_conn_params and iterate safely in hci_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: use RCU for hciconnparams and iterate safely in hcisync hciupdateacceptlistsync iterates over hdev-pendleconns and hdev-pendlereports, and waits for controller events in the loop body, without holding hdev lock...

CVE-2023-53252

The CVE-2023-53252 entry applies to the Linux kernel Bluetooth stack. The vulnerability arises in hci_update_accept_list_sync where hci_conn_params/hci_sync lists are iterated while the lists can be modified (e.g., by le_scan_cleanup) without holding the device lock, risking an invalid list curso...

AZL-48197 CVE-2024-43884 affecting package kernel for versions less than 6.6.51.1-5

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Add error handling to pairdevice hciconnparamsadd never checks for a NULL value and could lead to a NULL pointer dereference causing a crash. Fixed by adding error handling in the function...