CVE-2026-43019

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in setcigparamssync hciconn lookup and field access must be covered by hdev lock in setcigparamssync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hciconn from...

CVE-2026-43019

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in setcigparamssync hciconn lookup and field access must be covered by hdev lock in setcigparamssync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hciconn from...

CVE-2026-43019

The CVE-2026-43019 issue affects the Linux kernel Bluetooth HCI path, where hci_conn lookups and field access in set_cig_params_sync were not properly protected by the hdev lock, allowing a use-after-free when an hci_conn could be freed concurrently. The documented fix is to take the hdev lock to...

CVE-2026-43019 Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in setcigparamssync hciconn lookup and field access must be covered by hdev lock in setcigparamssync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hciconn from...

EUVD-2026-26618

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in setcigparamssync hciconn lookup and field access must be covered by hdev lock in setcigparamssync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hciconn from...

CVE-2026-43018 Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

CVE-2026-43018 Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

EUVD-2026-26617

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

CVE-2026-43018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

CVE-2026-43018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

CVE-2026-43018

The CVE-2026-43018 entry is confirmed: a Use-After-Free in Linux kernel Bluetooth HCI event handling (hci_le_remote_conn_param_req_evt) due to insufficient locking during hci_conn lookup/access. The vulnerability arises from hci_conn lookup and field access not always being protected by the hdev ...

CVE-2026-43017

CVE-2026-43017 concerns the Linux kernel Bluetooth MGMT mesh path. It fixes missing validation of adv_data_len in mesh_send, which could allow out-of-bounds access in queued commands. The description and connected advisories indicate: affected software is the Linux kernel; root cause is failure t...

CVE-2026-43017 Bluetooth: MGMT: validate mesh send advertising payload length

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length meshsend currently bounds MGMTOPMESHSEND by total command length, but it never verifies that the bytes supplied for the flexible advdata array actually match the...

CVE-2026-43017

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length meshsend currently bounds MGMTOPMESHSEND by total command length, but it never verifies that the bytes supplied for the flexible advdata array actually match the...

CVE-2026-43017 Bluetooth: MGMT: validate mesh send advertising payload length

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length meshsend currently bounds MGMTOPMESHSEND by total command length, but it never verifies that the bytes supplied for the flexible advdata array actually match the...

EUVD-2026-26616

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length meshsend currently bounds MGMTOPMESHSEND by total command length, but it never verifies that the bytes supplied for the flexible advdata array actually match the...

CVE-2026-43017

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length meshsend currently bounds MGMTOPMESHSEND by total command length, but it never verifies that the bytes supplied for the flexible advdata array actually match the...

CVE-2026-31773 Bluetooth: SMP: derive legacy responder STK authentication from MITM state

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SMP: derive legacy responder STK authentication from MITM state The legacy responder path in smprandom currently labels the stored STK as authenticated whenever pendingseclevel is BTSECURITYHIGH. That reflects what the...

CVE-2026-31773

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SMP: derive legacy responder STK authentication from MITM state The legacy responder path in smprandom currently labels the stored STK as authenticated whenever pendingseclevel is BTSECURITYHIGH. That reflects what the...

CVE-2026-31773

The CVE-2026-31773 entry concerns the Linux kernel Bluetooth SMP implementation. The root cause is that the legacy responder path in smp_random() marks the STK as authenticated whenever pending_sec_level is BT_SECURITY_HIGH, which reflects the requested security level rather than the actual pairi...