Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

There are use-after-free vulnerabilities in the net/bluetooth/l2capcore.c files, specifically in the l2capconnect and l2capleconnectreq functions. These vulnerabilities may allow code execution and the leakage of kernel memory remotely via Bluetooth. A remote attacker can execute code that leaks...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005148)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005148 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix uaf in l2capconnect Syzbot reported BUG: KASAN: slab-use-after-free in...

kernel: Bluetooth: L2CAP: Fix slab-use-after-free in l2cap_connect()

A use-after-free vulnerability exists in the Bluetooth stack of the Linux kernel. The l2capconnect does not return void during the function return, potentially leading to a loss of system availability...

Bluetooth: L2CAP: Fix uaf in l2cap_connect

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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 Bluetooth L2CAP protocol post-release reuse issue in l2capconnect...

The vulnerability of the l2cap_connect() function in the Linux operating system’s Bluetooth kernel implementation allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the l2capconnect function in the net/bluetooth/l2capcore.c module of the Linux operating system’s Bluetooth kernel implementation is related to the reallocation of previously freed memory due to concurrent access to resources. Exploiting this vulnerability could allow an...

DEBIAN-CVE-2024-36013

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free in l2capconnect Extend a critical section to prevent chan from early freeing. Also make the l2capconnect return type void. Nothing is using the returned value but it is ugly to return a...

kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

Vulnerability of the l2cap_connect and l2cap_le_connect_req functions (net/bluetooth/l2cap_core.c) in Linux kernel, allowing a hacker to execute arbitrary code

The vulnerability of the l2capconnect and l2capleconnectreq functions net/bluetooth/l2capcore.c in Linux kernel systems relates to the possibility of exploiting memory after it is freed. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code...