CVE-2026-64406

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in btacceptdequeue btacceptget takes a temporary reference before dropping the accept queue lock. btacceptdequeue currently drops that reference before btacceptunlink, leaving only the queue reference...

CVE-2026-64406 Bluetooth: fix UAF in bt_accept_dequeue()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in btacceptdequeue btacceptget takes a temporary reference before dropping the accept queue lock. btacceptdequeue currently drops that reference before btacceptunlink, leaving only the queue reference...

CVE-2026-64406

CVE-2026-64406 affects the Linux kernel Bluetooth subsystem. Multiple vendors report a use-after-free in bt_accept_dequeue() where a temporary reference to the accept queue is dropped too early, causing sock_hold() to access freed memory during listening L2CAP socket cleanup. The fix retains the ...

EUVD-2026-48949

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix null ptr deref in hciabortconn hciabortconn read hciskbeventhdev-sentcmd when a connection was pending, but hdev-sentcmd can be NULL while reqstatus is still HCIREQPEND, leading to a NULL pointer dereferen...

CVE-2026-64406 Bluetooth: fix UAF in bt_accept_dequeue()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in btacceptdequeue btacceptget takes a temporary reference before dropping the accept queue lock. btacceptdequeue currently drops that reference before btacceptunlink, leaving only the queue reference...

CVE-2026-64406 Bluetooth: fix UAF in bt_accept_dequeue()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in btacceptdequeue btacceptget takes a temporary reference before dropping the accept queue lock. btacceptdequeue currently drops that reference before btacceptunlink, leaving only the queue reference...

CVE-2026-64405 Bluetooth: hci_conn: Fix null ptr deref in hci_abort_conn()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix null ptr deref in hciabortconn hciabortconn read hciskbeventhdev-sentcmd when a connection was pending, but hdev-sentcmd can be NULL while reqstatus is still HCIREQPEND, leading to a NULL pointer dereferen...

CVE-2026-64404

CVE-2026-64404 is a NULL pointer dereference in the Linux kernel's Bluetooth ISO subsystem , specifically in the iso_conn_big_sync() function. The function drops the socket lock to call hci_get_route() and re-acquires it, but dereferences iso_pi(sk)->conn->hcon without re-validating that co...

EUVD-2026-48948

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid NULL deref of conn in isoconnbigsync isoconnbigsync drops the socket lock to call hcigetroute and then re-acquires it, but dereferences isopisk-conn-hcon afterwards without re-checking that conn is still...

CVE-2026-64404 Bluetooth: ISO: avoid NULL deref of conn in iso_conn_big_sync()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid NULL deref of conn in isoconnbigsync isoconnbigsync drops the socket lock to call hcigetroute and then re-acquires it, but dereferences isopisk-conn-hcon afterwards without re-checking that conn is still...

CVE-2026-64404

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid NULL deref of conn in isoconnbigsync isoconnbigsync drops the socket lock to call hcigetroute and then re-acquires it, but dereferences isopisk-conn-hcon afterwards without re-checking that conn is still...

CVE-2026-64404 Bluetooth: ISO: avoid NULL deref of conn in iso_conn_big_sync()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid NULL deref of conn in isoconnbigsync isoconnbigsync drops the socket lock to call hcigetroute and then re-acquires it, but dereferences isopisk-conn-hcon afterwards without re-checking that conn is still...

CVE-2026-64403 Bluetooth: L2CAP: validate option length before reading conf opt value

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate option length before reading conf opt value l2capgetconfopt derives the option length from the attacker-controlled opt-len field and immediately dereferences opt-val as u8, getunalignedle16 or...

EUVD-2026-48947

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate option length before reading conf opt value l2capgetconfopt derives the option length from the attacker-controlled opt-len field and immediately dereferences opt-val as u8, getunalignedle16 or...

CVE-2026-64403 Bluetooth: L2CAP: validate option length before reading conf opt value

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate option length before reading conf opt value l2capgetconfopt derives the option length from the attacker-controlled opt-len field and immediately dereferences opt-val as u8, getunalignedle16 or...

CVE-2026-64403

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate option length before reading conf opt value l2capgetconfopt derives the option length from the attacker-controlled opt-len field and immediately dereferences opt-val as u8, getunalignedle16 or...

CVE-2026-64403 Bluetooth: L2CAP: validate option length before reading conf opt value

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate option length before reading conf opt value l2capgetconfopt derives the option length from the attacker-controlled opt-len field and immediately dereferences opt-val as u8, getunalignedle16 or...

CVE-2026-64403

CVE-2026-64403 covers a Linux kernel Bluetooth L2CAP bug. l2cap_get_conf_opt() derives the option length from opt->len and dereferences opt->val before ensuring the buffer contains opt->len bytes, allowing an out-of-bounds read (up to 4 bytes) before a check. Callers detect malformed opt...

CVE-2026-64364 HID: multitouch: fix out-of-bounds bit access on mt_io_flags

In the Linux kernel, the following vulnerability has been resolved: HID: multitouch: fix out-of-bounds bit access on mtioflags mtioflags is a single unsigned long, but mtprocessslot, mtreleasependingpalms and mtreleasecontacts use it as a per-slot bitmap indexed by the slot number. That slot numb...

PT-2026-64692

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free and double-free issue exists in the Bluetooth btusb component. The problem occurs when controller registration fails, and sibling interfaces are not properly released,...