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

In the Linux kernel, the following vulnerability has been resolved: ip6gre: made ip6greheader more robust. Over the years, syzbot has identified many ways in which the kernel can crash due to issues related to ip6greheader. This involves the ability of team or bonding drivers to dynamically chang...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ipv4: ipgre: made ipgreheader more robust. A corresponding commit db5b4e39c4e6 has been made for “ip6gre: made ip6greheader more robust.” Over the years, syzbot has identified many ways in which the kernel can crash due to issues...

CVE-2025-71098

The CVE CVE-2025-71098 affects the Linux kernel’s IP6_GRE path. Syzbot crashes were caused by ip6gre_header() relying on dynamic dev->needed_headroom/dev->hard_header_len, enabling skb underflow when an skb with insufficient headroom was used (e.g., during mld_sendpack/mld_finish_output pat...

PT-2026-4673

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the ipv4/ip gre module related to the ipgre header function. This issue can lead to kernel crashes when devices dynamically change their headroom or...