CVE-2026-74300

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface HCI component. A malicious Bluetooth controller could send a specially crafted response during the 'Read Local Codec Capabilities' operation. Insufficient validation of the codec capability element length could allow the...

CVE-2026-74529

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface HCI synchronization component. This vulnerability, a Use-After-Free UAF, occurs when a connection object is prematurely released while the hcisync task is still active. A local attacker could potentially exploit this to...

CVE-2026-74531

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: hold conn reference in abortconnsync There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that...

CVE-2026-74300

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: validate codec capability element length Read Local Codec Capabilities returns a sequence of capability elements. Each element starts with a one-byte length followed by that many payload bytes...

UBUNTU-CVE-2026-74300

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: validate codec capability element length Read Local Codec Capabilities returns a sequence of capability elements. Each element starts with a one-byte length followed by that many payload bytes...

CVE-2026-74300

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: validate codec capability element length Read Local Codec Capabilities returns a sequence of capability elements. Each element starts with a one-byte length followed by that many payload bytes...

CVE-2026-74302 Bluetooth: hci_core: Fix UAF in hci_unregister_dev()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: Fix UAF in hciunregisterdev hciunregisterdev does not disable cmdtimer and ncmdtimer before the hcidev structure is freed. If a timeout fires during device teardown, the callback dereferences freed memory...

CVE-2026-74300 Bluetooth: hci: validate codec capability element length

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: validate codec capability element length Read Local Codec Capabilities returns a sequence of capability elements. Each element starts with a one-byte length followed by that many payload bytes...

PT-2026-72738

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci core: Fix UAF in hci unregister dev hci unregister dev does not disable cmd timer and ncmd timer before the hci dev structure is freed. If a timeout fires during device teardown, the callback dereferences freed...

CVE-2026-68389

A flaw was found in the Bluetooth Host Controller Interface HCI Qualcomm Atheros QCA driver within the Linux kernel. This vulnerability occurs when the controller reports an invalid zero memory dump size, leading to improper state cleanup. An attacker could potentially exploit this to cause memor...

CVE-2026-68085

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface HCI Universal Asynchronous Receiver/Transmitter UART driver. This vulnerability occurs when a Bluetooth device is reopened after a pending write operation was canceled, but an internal flag indicating a pending write is no...

CVE-2026-11894

The Realtek BEE Bluetooth HCI driver's send callback, bthcibeesend in drivers/bluetooth/hci/hcibee.c, violated the bthcidriverapi buffer-ownership contract. That contract requires the driver to consume unref the transmit netbuf only on success; on an error return the host caller retains ownership...

CVE-2026-11893

The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x, btbflbsend in drivers/bluetooth/hci/hcibflb.c, violates the bthcidriverapi.send buffer-ownership contract. That contract documented at include/zephyr/drivers/bluetooth.h requires the buffer reference to be consum...

CVE-2026-11894

The Realtek BEE Bluetooth HCI driver's send callback, bthcibeesend in drivers/bluetooth/hci/hcibee.c, violated the bthcidriverapi buffer-ownership contract. That contract requires the driver to consume unref the transmit netbuf only on success; on an error return the host caller retains ownership...

CVE-2026-11894 Double-free / use-after-free in Realtek BEE Bluetooth HCI driver `send()` error paths

The Realtek BEE Bluetooth HCI driver's send callback, bthcibeesend in drivers/bluetooth/hci/hcibee.c, violated the bthcidriverapi buffer-ownership contract. That contract requires the driver to consume unref the transmit netbuf only on success; on an error return the host caller retains ownership...

CVE-2026-11894 Double-free / use-after-free in Realtek BEE Bluetooth HCI driver `send()` error paths

The Realtek BEE Bluetooth HCI driver's send callback, bthcibeesend in drivers/bluetooth/hci/hcibee.c, violated the bthcidriverapi buffer-ownership contract. That contract requires the driver to consume unref the transmit netbuf only on success; on an error return the host caller retains ownership...

CVE-2026-11893

The CVE concerns Bouffalo Lab on‑chip BLE controllers (BL60x/BL70x/BL61x) with Zephyr’s Bluetooth HCI, where bt_bflb_send() in hci_bflb.c violates the bt_hci_driver_api.send() buffer-ownership contract. On error, the driver unrefs the buffer, but the host TX path (send_buf() in subsys/bluetooth/h...

CVE-2026-11893

The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x, btbflbsend in drivers/bluetooth/hci/hcibflb.c, violates the bthcidriverapi.send buffer-ownership contract. That contract documented at include/zephyr/drivers/bluetooth.h requires the buffer reference to be consum...

EUVD-2026-55935

The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x, btbflbsend in drivers/bluetooth/hci/hcibflb.c, violates the bthcidriverapi.send buffer-ownership contract. That contract documented at include/zephyr/drivers/bluetooth.h requires the buffer reference to be consum...

PT-2026-70058

Name of the Vulnerable Software and Affected Versions Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x affected versions not specified Description The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers contains an issue where the bt bflb send function in drivers/bluetooth/hci/hci...