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

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: Use RCU protection in ip6defaultadvmss. ip6defaultadvmss requires RCU protection to ensure that the network structure it reads does not disappear...

SUSE CVE-2026-80847

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

AZL-99588 CVE-2026-80847 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

CVE-2026-80847

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

EUVD-2026-71297

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

CVE-2026-80847 tcp: clamp route advmss to TCP_MIN_MSS

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

CVE-2026-80847

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

CVE-2026-80847 tcp: clamp route advmss to TCP_MIN_MSS

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAXADVMSS is one way to get...

CVE-2026-80847

CVE-2026-80847 affects the Linux kernel TCP subsystem. The root cause is a divide-by-zero in tcp_select_initial_window(), which assumes the advertised MSS (advmss) is at least 1. Route-derived advmss values can violate this assumption—either via an explicit too-small RTAX_ADVMSS or through the de...

PT-2026-91345

In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCP MIN MSS tcp select initial window assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate that assumption. A too-small explicit RTAX ADVMSS is one way to g...

Linux Distros Unpatched Vulnerability : CVE-2026-80847

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: clamp route advmss to TCPMINMSS tcpselectinitialwindow assumes that callers never pass an MSS smaller than 1, but route-derived advmss values can violate...

PT-2026-85725

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A divide-by-zero issue exists in the TCP implementation. The tcp select initial window function assumes that the Maximum Segment Size MSS passed to it is never smaller than 1. However,...

SUSE CVE-2025-21765

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6defaultadvmss ip6defaultadvmss needs rcu protection to make sure the net structure it reads does not disappear...

DEBIAN-CVE-2025-21765

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6defaultadvmss ip6defaultadvmss needs rcu protection to make sure the net structure it reads does not disappear...

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 the ip6defaultadvmss function not being RCU-protected, which could lead to reuse after release...

PT-2025-8877

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue is related to the function ip6 default advmss, which requires RCU protection to prevent the net structure it reads from...