CVE-2026-53236

In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SOATTACHFILTER to priv users This patch restricts the use of SOATTACHFILTER cBPF on TCP sockets to users with CAPNETADMIN capability. This blocks potential side-channel attack where an unprivileged application...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001936)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001936 advisory. The tcpreadsock function in net/ipv4/tcp.c in the Linux kernel before 2.6.34 does not properly manage skb consumption, which allows local users to cause a denial of...

CVE-2022-50838 net: stream: purge sk_error_queue in sk_stream_kill_queues()

In the Linux kernel, the following vulnerability has been resolved: net: stream: purge skerrorqueue in skstreamkillqueues Changheon Lee reported TCP socket leaks, with a nice repro. It seems we leak TCP sockets with the following sequence: 1 SOFTIMESTAMPINGTXACK is enabled on the socket. Each ACK...

PT-2025-44148

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel had a flaw in the Network Block Device NBD module where it permitted the use of various socket types, leading to potential abuse. Specifically, a testing tool named syzb...

kernel: tcp: properly terminate timers for kernel sockets

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

kernel: net/ulp: use-after-free in listening ULP sockets

A use-after-free flaw was found in the Linux kernel’s TLS protocol functionality in how a user installs a tls context struct tlscontext on a connected TCP socket. This flaw allows a local user to crash or potentially escalate their privileges on the system...

UBUNTU-CVE-2023-0461

There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIGTLS or CONFIGXFRMESPINTCP has to be configured, but the operation does not require any privilege. There is a...