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: net: ipv4: Issues with TCP reordering of sysctl writes and MTU probe sizes were addressed. Invalid values of net.ipv4.tcpreordering are now rejected before they reach the TCP socket state. The sysctl value is stored as an int...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-101966)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101966 advisory. In the Linux kernel, the following vulnerability has been resolved: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes Reject invalid...

CVE-2026-64422

A flaw was found in the Linux kernel's IPv4 networking stack. Invalid values for net.ipv4.tcpreordering, particularly negative inputs, can lead to an integer overflow when processed. When tcpmtuprobing is enabled, this overflow can cause an out-of-bounds read within the tcpmtuprobe function. This...

CVE-2026-64422 net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes

In the Linux kernel, the following vulnerability has been resolved: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes Reject invalid net.ipv4.tcpreordering values before they reach TCP socket state. The sysctl is stored as an int but copied into the u32 tp-reordering field for new...

CVE-2026-64422: Integer Overflow or Wraparound

In the Linux kernel, the following vulnerability has been resolved: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes Reject invalid net.ipv4.tcpreordering values before they reach TCP socket state. The sysctl is stored as an int but copied into the u32 tp-reordering field for new...