kernel: Bluetooth: L2CAP: Fix potential user-after-free

A use-after-free flaw was identified in the Linux kernel’s Bluetooth L2CAP implementation. In certain conditions, when allocating a socket buffer via allocskb, the kernel may release and later reacquire the channel lock; if the channel is disconnected in the meantime, a subsequent reference to th...

kernel: Bluetooth: L2CAP: Fix potential user-after-free

A use-after-free flaw was identified in the Linux kernel’s Bluetooth L2CAP implementation. In certain conditions, when allocating a socket buffer via allocskb, the kernel may release and later reacquire the channel lock; if the channel is disconnected in the meantime, a subsequent reference to th...

kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

A flaw was found in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol L2CAP implementation. A remote Bluetooth Low Energy BLE device can exploit this by sending a specially crafted L2CAP ECRED reconfiguration response. This can lead to the corruption of the channel list,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb3: A missing lock occurs when picking the channel. Coverity has identified a point where we should have held the channel lock when accessing the ses channel index. Address-Coverity: 1582039 “Data race condition MISSINGLOCK”...

kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

A flaw was found in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol L2CAP implementation. A remote Bluetooth Low Energy BLE device can exploit this by sending a specially crafted L2CAP ECRED reconfiguration response. This can lead to the corruption of the channel list,...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: fixed the “bad unlock balance” issue in l2capdisconnectrsp. The conn-chanlock is not acquired before l2capgetchanbyscid. If l2capgetchanbyscid returns NULL, then the “bad unlock balance” issue will be trigger...

PT-2026-65474

The EVTCHNOP expand array hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP reset, resulting in dereferencing a NULL pointer...

AZL-93788 CVE-2026-64408 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: pin L2CAP connection during netdev registration bnepaddconnection reads the L2CAP connection without holding the channel lock, then passes its HCI device to registernetdev. Controller teardown can clear and relea...

CVE-2026-64408

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: pin L2CAP connection during netdev registration bnepaddconnection reads the L2CAP connection without holding the channel lock, then passes its HCI device to registernetdev. Controller teardown can clear and relea...

CVE-2026-64408 Bluetooth: bnep: pin L2CAP connection during netdev registration

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: pin L2CAP connection during netdev registration bnepaddconnection reads the L2CAP connection without holding the channel lock, then passes its HCI device to registernetdev. Controller teardown can clear and relea...

CVE-2026-64408

The CVE concerns the Linux kernel Bluetooth BNEP path: during netdev registration, bnep_add_connection() reads the L2CAP connection without holding the channel lock, and passes the HCI device to register_netdev() while a controller teardown could clear the connection. The published fix is to take...

EUVD-2026-48952

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: pin L2CAP connection during netdev registration bnepaddconnection reads the L2CAP connection without holding the channel lock, then passes its HCI device to registernetdev. Controller teardown can clear and relea...

CVE-2026-64408 Bluetooth: bnep: pin L2CAP connection during netdev registration

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: pin L2CAP connection during netdev registration bnepaddconnection reads the L2CAP connection without holding the channel lock, then passes its HCI device to registernetdev. Controller teardown can clear and relea...

PT-2026-64629

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Bluetooth BNEP Bluetooth Network Encapsulation Protocol component where the bnep add connection function reads the L2CAP connection without holding the channel loc...

RockyLinux 9 : kernel (RLSA-2026:43307)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:43307 advisory. kernel: crypto: afalg - zero initialize memory allocated via sockkmalloc CVE-2025-71113 kernel: scsi: core: Wake up the error handler when final...

kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

A flaw was found in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol L2CAP implementation. A remote Bluetooth Low Energy BLE device can exploit this by sending a specially crafted L2CAP ECRED reconfiguration response. This can lead to the corruption of the channel list,...

SUSE CVE-2026-53071

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2capecredreconfrsp l2capecredreconfrsp calls l2capchandel without holding l2capchanlock. Every other l2capchandel caller in the file acquires the lock first. A remote BLE device can sen...

Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

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CVE-2026-53071 Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2capecredreconfrsp l2capecredreconfrsp calls l2capchandel without holding l2capchanlock. Every other l2capchandel caller in the file acquires the lock first. A remote BLE device can sen...

EUVD-2026-38939

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2capecredreconfrsp l2capecredreconfrsp calls l2capchandel without holding l2capchanlock. Every other l2capchandel caller in the file acquires the lock first. A remote BLE device can sen...