Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098711)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098711 advisory. In the Linux kernel, the following vulnerability has been resolved: atm: lec: fix null-ptr-deref in lecarpclearvccs syzkaller reported a null-ptr-deref in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the atm: lec section, there was a issue with null-ptr-deref in lecarpclearvccs. Syzkaller reported a null-ptr-deref in lecarpclearvccs. This issue can be easily reproduced using the syzkaller reproducer. In the ATM LANE LAN...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: atm: clip: Fixed NULL pointer dereferencing in vccsendmsg atmarpddevops does not implement the send method, which may cause crashes as described below. BUG: NULL pointer dereferencing in the kernel, address: 0000000000000000 P...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099730)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099730 advisory. In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The AT...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the ATM send path sendmsg - vccsendmsg - sigdsend, the vcc pointer is read from msg-vcc and used directly without any validation. This pointer comes from the user space via sendmsg, and can be arbitrarily forged: int fd =...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: atm: fix crash due to unvalidated vcc pointer in sigdsend CVE-2026-31411 kernel: tcp: fix potential race in tcpv6synrecvsock CVE-2026-43198 Bug Fixes and Enhancements: AlmaLinux 9.8...

EUVD-2026-26649

In the Linux kernel, the following vulnerability has been resolved: atm: lec: fix use-after-free in sockdefreadable A race condition exists between lecatmclose setting priv-lecd to NULL and concurrent access to priv-lecd in sendtolecd, lechandlebridge, and lecatmsend. When the socket is freed via...

CVE-2026-43050 atm: lec: fix use-after-free in sock_def_readable()

In the Linux kernel, the following vulnerability has been resolved: atm: lec: fix use-after-free in sockdefreadable A race condition exists between lecatmclose setting priv-lecd to NULL and concurrent access to priv-lecd in sendtolecd, lechandlebridge, and lecatmsend. When the socket is freed via...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007437)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007437 advisory. In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix memory leak of struct clipvcc. ioctlATMARPMKIP allocates struct clipvcc and set it...

SUSE CVE-2026-31411

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The ATM send path sendmsg - vccsendmsg - sigdsend reads the vcc pointer from msg-vcc and uses it directly without any validation. This...

EUVD-2026-20469

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The ATM send path sendmsg - vccsendmsg - sigdsend reads the vcc pointer from msg-vcc and uses it directly without any validation. This...

UBUNTU-CVE-2026-31411

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The ATM send path sendmsg - vccsendmsg - sigdsend reads the vcc pointer from msg-vcc and uses it directly without any validation. This...

CVE-2026-31411 net: atm: fix crash due to unvalidated vcc pointer in sigd_send()

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The ATM send path sendmsg - vccsendmsg - sigdsend reads the vcc pointer from msg-vcc and uses it directly without any validation. This...

CVE-2026-31411

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The ATM send path sendmsg - vccsendmsg - sigdsend reads the vcc pointer from msg-vcc and uses it directly without any validation. This...

CVE-2026-31411

CVE-2026-31411: Linux kernel ATM signaling path (net/atm) allowed forged user pointers via sendmsg(), leading to potential memory safety risks. A fix adds find_get_vcc() to validate the vcc pointer against the vcc_hash and uses sock_hold() to keep the object alive during processing of signaling o...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the lack of verification of the vcc pointer in the sigdsend function. This vulnerability could le...

CVE-2026-31411

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigdsend Reproducer available at 1. The ATM send path sendmsg - vccsendmsg - sigdsend reads the vcc pointer from msg-vcc and uses it directly without any validation. This...

PT-2026-31306

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the ATM send path sendmsg - vcc sendmsg - sigd send. The system reads the vcc pointer from msg-vcc without validation, and this pointer originates fro...

SUSE CVE-2026-23286

In the Linux kernel, the following vulnerability has been resolved: atm: lec: fix null-ptr-deref in lecarpclearvccs syzkaller reported a null-ptr-deref in lecarpclearvccs. This issue can be easily reproduced using the syzkaller reproducer. In the ATM LANE LAN Emulation module, the same atmvcc can...

CVE-2026-23286

In the Linux kernel, the following vulnerability has been resolved: atm: lec: fix null-ptr-deref in lecarpclearvccs syzkaller reported a null-ptr-deref in lecarpclearvccs. This issue can be easily reproduced using the syzkaller reproducer. In the ATM LANE LAN Emulation module, the same atmvcc can...