EUVD-2026-55575

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciqca: Clear memdump state on invalid dump size qcacontrollermemdump allocates qca-qcamemdump before processing the first dump packet. For a sequence-zero packet it then disables IBS, marks memdump collection active,...

CVE-2026-68389

The CVE-2026-68389 entry concerns a Linux kernel Bluetooth HCI driver (Qualcomm/Atheros QCA) issue. A zero/invalid memdump size in qca_controller_memdump() could leave qca->qca_memdump and collection flags in an inconsistent state, causing a later memdump work item to operate on freed memory a...

CVE-2026-68339 Bluetooth: btusb: validate Realtek vendor event length

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: validate Realtek vendor event length btusbrecveventrealtek reads the event code at data0 and the Realtek subevent code at data2 before deciding whether to consume a vendor event as a coredump. For example, the...

EUVD-2026-55290

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Protect UUID list traversal The hcisync conversion moved class-of-device and EIR generation from an HCI request built under hdev-lock to asynchronous command sync work. The worker holds hdev-reqlock, but that...

CVE-2026-68189 Bluetooth: hci_sync: Protect UUID list traversal

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Protect UUID list traversal The hcisync conversion moved class-of-device and EIR generation from an HCI request built under hdev-lock to asynchronous command sync work. The worker holds hdev-reqlock, but that...

CVE-2026-68189

CVE-2026-68189 affects the Linux kernel Bluetooth hci_sync component. A race between asynchronous command sync work and UUID list updates can cause a use-after-free in eir_create due to non-serialized access to hdev->uuids. The fix/mitigation is to hold hdev->lock while generating and commi...

CVE-2026-68189 Bluetooth: hci_sync: Protect UUID list traversal

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Protect UUID list traversal The hcisync conversion moved class-of-device and EIR generation from an HCI request built under hdev-lock to asynchronous command sync work. The worker holds hdev-reqlock, but that...

CVE-2026-68188 Bluetooth: RFCOMM: Fix session UAF in set_termios

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Fix session UAF in settermios rfcommttysettermios tests dlc-session without rfcommmutex and later passes the pointer to rfcommsendrpn. The latter dereferences both session-initiator and session-sock. Meanwhile,...

EUVD-2026-55289

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Fix session UAF in settermios rfcommttysettermios tests dlc-session without rfcommmutex and later passes the pointer to rfcommsendrpn. The latter dereferences both session-initiator and session-sock. Meanwhile,...

CVE-2026-68188

CVE-2026-68188 : In the Linux kernel Bluetooth RFCOMM path, a race caused use-after-free in rfcomm_send_rpn when rfcomm_tty_set_termios tests dlc->session without holding rfcomm_mutex and the DLC/session is freed by krfcommd. The fix adds rfcomm_dlc_send_rpn() that holds rfcomm_mutex while ver...

CVE-2026-68188 Bluetooth: RFCOMM: Fix session UAF in set_termios

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Fix session UAF in settermios rfcommttysettermios tests dlc-session without rfcommmutex and later passes the pointer to rfcommsendrpn. The latter dereferences both session-initiator and session-sock. Meanwhile,...

EUVD-2026-55266

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: clear HCIUARTSENDING when writework is canceled HCIUARTSENDING bit in txstate means writework is pending and blocks queueing it again. Currently this bit is not cleared when canceling the work in hciuartclose,...

CVE-2026-68085 Bluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: clear HCIUARTSENDING when writework is canceled HCIUARTSENDING bit in txstate means writework is pending and blocks queueing it again. Currently this bit is not cleared when canceling the work in hciuartclose,...

CVE-2026-68085 Bluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: clear HCIUARTSENDING when writework is canceled HCIUARTSENDING bit in txstate means writework is pending and blocks queueing it again. Currently this bit is not cleared when canceling the work in hciuartclose,...

CVE-2026-68085

CVE-2026-68085 — Linux kernel (Bluetooth hci_uart) Root cause: when canceling a pending write_work in hci_uart_close(), the HCI_UART_SENDING flag is not cleared, causing future writes to be blocked when the device is reopened. The fix clears HCI_UART_SENDING on cancellation and makes tx_skb handl...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: 6lowpan: resetting the link-local header in the IPv6 receive path The Bluetooth 6lowpan.c netdev module has the headerops function; therefore, it must set the link-local header for the RX skb packet. Otherwise, thin...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: MGMT: Fixed a memory leak in setsspcomplete. The memory leak was fixed in setsspcomplete, where the mgmtpendingcmd structures are not freed after they are removed from the pending list. Commit 302a1f674c00 “Bluetoot...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hcisync: fixed a race condition in hcicmdsyncdequeueonce. The function hcicmdsyncdequeueonce performs a lookup and then cancels the entry under two separate lock sections. Meanwhile, hcicmdsyncwork can also delete t...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: SCO: Fixed UAF in scoconnfree BUG: KASAN: Slab-use-after-free in scoconnfree, net/bluetooth/sco.c:87 inline BUG: KASAN: Slab-use-after-free in krefput, include/linux/kref.h:65 inline BUG: Slab-use-after-free in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bcsp: receives data only if registered Currently, the bcsprecv function can still be called even when the BCSP protocol has not been registered. This leads to a NULL pointer dereference, as shown in the following stack...