AZL-60270 CVE-2025-21969 affecting package kernel for versions less than 6.6.85.1-2

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...

AZL-60251 CVE-2025-21969 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...

CVE-2025-21969 Bluetooth: L2CAP: Fix slab-use-after-free Read in l2cap_send_cmd

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...

CVE-2025-21969

CVE-2025-21969 is a Linux kernel vulnerability in the Bluetooth stack (L2CAP). The issue is a slab-use-after-free in l2cap_send_cmd when the hci sync path releases l2cap_conn but a worker still references it. The root cause is a race between the hci receive data work queue and the l2cap_conn life...

UBUNTU-CVE-2023-53017

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix memory leak in hciupdateadvdata When hcicmdsyncqueue failed in hciupdateadvdata, instptr is not freed, which will cause memory leak, convert to use ERRPTR/PTRERR to pass the instance to callback so no memo...

UBUNTU-CVE-2023-53018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix memory leaks When hcicmdsyncqueue failed in hcileterminatebig or hcilebigterminate, the memory pointed by variable d is not freed, which will cause memory leak. Add release process to error path...

CVE-2023-53018 Bluetooth: hci_conn: Fix memory leaks

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix memory leaks When hcicmdsyncqueue failed in hcileterminatebig or hcilebigterminate, the memory pointed by variable d is not freed, which will cause memory leak. Add release process to error path...

CVE-2023-53017 Bluetooth: hci_sync: fix memory leak in hci_update_adv_data()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix memory leak in hciupdateadvdata When hcicmdsyncqueue failed in hciupdateadvdata, instptr is not freed, which will cause memory leak, convert to use ERRPTR/PTRERR to pass the instance to callback so no memo...

Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2024-26924: scsi: lpfc: Release hbalock before calling lpfcworkerwakeup bsc1225820. CVE-2024-27397: netfilter: nftables: use timestamp to check for set...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a memory leak when Bluetooth hciconn terminates BIG...

The vulnerability of the hci_cb_list() function in the Linux kernel Bluetooth driver allows a hacker to induce a service failure.

The vulnerability of the hcicblist function in the Linux kernel Bluetooth driver is related to synchronization errors. Exploiting this vulnerability can allow an attacker to cause a service failure...

2025-03 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5053638)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

CVE-2025-27840

Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 Write memory...

CVE-2025-27840

Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 Write memory...

CVE-2025-27840

Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 Write memory...

CVE-2025-27840

CVE-2025-27840 concerns Espressif ESP32 family chips. The public materials describe 29 hidden HCI/debug commands (notably 0xFC02: Write memory) that are undocumented and could enable memory writes in affected devices. Espressif explicitly states these are internal debug commands not remotely acce...

Linux Distros Unpatched Vulnerability : CVE-2023-2002

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found in the HCI sockets implementation due to a missing capability check in net/bluetooth/hcisock.c in the Linux Kernel. This flaw allows a...

CVE-2022-49111

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use after free in hcisendacl This fixes the following trace caused by receiving HCIEVDISCONNPHYLINKCOMPLETE which does call hciconndel without first checking if conn-type is in fact AMPLINK and in case it is do...

UBUNTU-CVE-2025-21735

In the Linux kernel, the following vulnerability has been resolved: NFC: nci: Add bounds checking in ncihcicreatepipe The "pipe" variable is a u8 which comes from the network. If it's more than 127, then it results in memory corruption in the caller, ncihciconnectgate...

SUSE CVE-2022-49202

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: add missing NULL check in h5enqueue Syzbot hit general protection fault in pmruntimeresume. The problem was in missing NULL check. hu-serdev can be NULL and we should not blindly pass &serdev-dev somewhere,...