CVE-2026-80760

A flaw was found in the Linux kernel's Bluetooth Management MGMT component. The mgmthcicmdsync function incorrectly handles the paramslen field, allowing a value greater than 255 to be processed. This mismatch between the declared parameter length and the actual appended data can cause the...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix slab-use-after-free Read in setpoweredsync This fixes the following crash: ================================================================== BUG: KASAN: slab-use-after-free in setpoweredsync+0x3a/0xc0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fixed out-of-band OOB access during the parseadvmonitorpattern function execution. In the parseadvmonitorpattern function, the value of the length variable is currently limited to HCIMAXEXTADLENGTH251. The size o...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length Currently, meshsend limits MGMTOPMESHSEND to the total command length; however, it never verifies whether the bytes provided for the flexible advdata array actually...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Added error handling to pairdevice. The hciconnparamsadd function never checks for a NULL value, which could lead to a NULL pointer dereferencing and resulting in a crash. This issue has been fixed by adding erro...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix UAF on mgmtremoveadvmonitorcomplete This reworks MGMTOPREMOVEADVMONITOR to not use mgmtpendingadd to avoid crashes like bellow: ================================================================== BUG: KASAN:...

CVE-2026-90253

A flaw was found in the Linux kernel's Bluetooth Management MGMT component. This vulnerability occurs when a mesh send cancel command is cancelled, but the associated memory and socket reference are not properly released. This oversight can lead to a resource leak, potentially allowing a local...

CVE-2026-90252

A flaw was found in the Bluetooth Management MGMT component of the Linux kernel. When a Host Controller Interface HCI command is cancelled, the associated memory is not properly freed, leading to a memory leak. This issue can also prevent the management socket from being released, potentially...

PT-2026-97934

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the Bluetooth management component. The uuid count member of the discovery state structure is accessed and modified without proper locking, creating ...

kernel: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

A flaw was found in the Linux kernel's Bluetooth management component. This vulnerability involves a Use-After-Free UAF condition, a type of memory corruption where the system attempts to use memory after it has been freed. This can occur due to improper handling of hciconn pointers, potentially...

kernel: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

A flaw was found in the Linux kernel's Bluetooth management component. This vulnerability involves a Use-After-Free UAF condition, a type of memory corruption where the system attempts to use memory after it has been freed. This can occur due to improper handling of hciconn pointers, potentially...

CVE-2026-68391

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hciconn in mgmtpendingcmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hciconn in hcisync callbacks also needs to hold refcount to avoi...

CVE-2026-68392

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpairdevice/disconnectsync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev-lock for hciconn lookup and hciabortconn. Don't use RCU to ensur...

CVE-2026-68394

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: revalidate LOADCONNPARAM queued update MGMTOPLOADCONNPARAM queues connupdatesync when a single parameter update changes an existing LE central connection. The queued work currently stores a borrowed hciconnparams...

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...

EUVD-2026-55580

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: revalidate LOADCONNPARAM queued update MGMTOPLOADCONNPARAM queues connupdatesync when a single parameter update changes an existing LE central connection. The queued work currently stores a borrowed hciconnparams...

EUVD-2026-55578

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpairdevice/disconnectsync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev-lock for hciconn lookup and hciabortconn. Don't use RCU to ensur...

CVE-2026-68392 Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpairdevice/disconnectsync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev-lock for hciconn lookup and hciabortconn. Don't use RCU to ensur...

EUVD-2026-55577

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hciconn in mgmtpendingcmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hciconn in hcisync callbacks also needs to hold refcount to avoi...

PT-2026-69792

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Bluetooth management component where RCU-protected pointers are dereferenced outside of critical sections. This behavior is invalid and can lead to a Use-After-Fre...