The vulnerability of the l2cap_sock_cleanup_listen() function in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the l2capsockcleanuplisten function in the Linux operating system is related to the use of memory after it is freed. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989338)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989338 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: use memset avoid memory leaks Use memset to initialize structs to prevent memory leaks...

kernel-rt security update

An update is available for kernel-rt. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel-rt packages provide the Real Time Linux Kernel, which enables...

kernel security update

An update is available for kernel. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

RockyLinux 8 : kernel-rt (RLSA-2025:19103)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:19103 advisory. kernel: Bluetooth: L2CAP: fix bad unlock balance in l2capdisconnectrsp CVE-2023-53297 kernel: efivarfs: Fix slab-out-of-bounds in efivarfsdcompare...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed null-ptr-deref in l2capsockresumecb. syzbot reported null-ptr-deref in l2capsockresumecb. 0 l2capsockresumecb has a similar issue that was fixed in commit 1bff51ea59a9 “Bluetooth: fixed use-after-free errors i...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix use-after-free in l2capconndel When l2caprecvframe is invoked to receive data, and the cid is L2CAPCIDA2MP, if the channel does not exist, it will create a channel. However, after a channel is created, the...

AlmaLinux 8 : kernel-rt (ALSA-2025:19103)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:19103 advisory. kernel: Bluetooth: L2CAP: fix bad unlock balance in l2capdisconnectrsp CVE-2023-53297 kernel: efivarfs: Fix slab-out-of-bounds in efivarfsdcompare...

AlmaLinux 8 : kernel (ALSA-2025:19102)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:19102 advisory. kernel: Bluetooth: L2CAP: fix bad unlock balance in l2capdisconnectrsp CVE-2023-53297 kernel: efivarfs: Fix slab-out-of-bounds in efivarfsdcompare...

kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix "bad unlock balance" in l2capdisconnectrsp conn-chanlock isn't acquired before l2capgetchanbyscid, if l2capgetchanbyscid returns NULL, then 'bad unlock balance' is triggered...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix "bad unlock balance" in l2capdisconnectrsp conn-chanlock isn't acquired before l2capgetchanbyscid, if l2capgetchanbyscid returns NULL, then 'bad unlock balance' is triggered...

Siemens SIMATIC Devices Classic Buffer Overflow (CVE-2024-35965)

Bluetooth: L2CAP: Fix not validating setsockopt user input Check user input length before copying data. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description...

ALSA-2025:19102 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2capdisconnectrsp CVE-2023-53297 kernel: efivarfs: Fix slab-out-of-bounds in efivarfsdcompare CVE-2025-39817 kernel: Bluetooth: Fix potentia...

Siemens SIMATIC Devices Improper Input Validation (CVE-2024-58009)

Bluetooth: L2CAP: handle NULL sock pointer in l2capsockalloc This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503503; scriptversion"1.2";...

ALSA-2025:19103 Moderate: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2capdisconnectrsp CVE-2023-53297 kernel: efivarfs: Fix slab-out-of-bounds in...

SUSE SLES12 Security Update : kernel (Live Patch 70 for SLE 12 SP5) (SUSE-SU-2025:03662-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03662-1 advisory. This update for the Linux Kernel 4.12.14-122266 fixes several issues. The following security issues were fixed: - CVE-2022-50386: Bluetooth:...

SUSE SLES12 Security Update : kernel (Live Patch 61 for SLE 12 SP5) (SUSE-SU-2025:03653-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03653-1 advisory. This update for the Linux Kernel 4.12.14-122231 fixes several issues. The following security issues were fixed: - CVE-2022-50386: Bluetooth:...

SUSE SLES12 Security Update : kernel (Live Patch 62 for SLE 12 SP5) (SUSE-SU-2025:03656-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03656-1 advisory. This update for the Linux Kernel 4.12.14-122234 fixes several issues. The following security issues were fixed: - CVE-2022-50386: Bluetooth:...

Security update for the Linux Kernel (Live Patch 72 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122272 fixes one issue. The following security issue was fixed: CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free bsc1250302. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zyppe...