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...

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...

PT-2026-51965

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Bluetooth Logical Link Control and Adaptation Protocol L2CAP implementation. A remote Bluetooth Low Energy BLE device can trigger the issue by sending a specially...

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...

CVE-2026-23226

CVE-2026-23226 involves a kernel vulnerability in ksmbd where the ksmbd_chann_list xarray was lacking synchronization, allowing a use-after-free in multi-channel sessions between lookup_chann_list() and ksmbd_chann_del. The provided documents confirm the root cause and the fix: the patch adds a n...

CVE-2025-71221

In the Linux kernel, the following vulnerability has been resolved: dmaengine: mmppdma: Fix race condition in mmppdmaresidue Add proper locking in mmppdmaresidue to prevent use-after-free when accessing descriptor list and descriptor contents. The race occurs when multiple threads call txstatus...

CVE-2025-71221 dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue()

In the Linux kernel, the following vulnerability has been resolved: dmaengine: mmppdma: Fix race condition in mmppdmaresidue Add proper locking in mmppdmaresidue to prevent use-after-free when accessing descriptor list and descriptor contents. The race occurs when multiple threads call txstatus...

PT-2026-20452

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel’s ksmbd module contains a synchronization issue within the ksmbd chann list xarray. This lack of synchronization can lead to a use-after-free condition in multi-channel...

CVE-2023-54214

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

SUSE CVE-2023-54214

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

EUVD-2023-60427

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

CVE-2023-54214

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

CVE-2023-54214

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

UBUNTU-CVE-2023-54214

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

CVE-2023-54214 Bluetooth: L2CAP: Fix potential user-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...

CVE-2023-54214 Bluetooth: L2CAP: Fix potential user-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling allocskb which may release the chan lock and reacquire later which makes it possible that the chan is...