Linux Distros Unpatched Vulnerability : CVE-2026-64123

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: hsr: defer node table free until after RCU readers HSR node-list and node-status generic-netlink operations run under rcureadlock. They walk hsr-nodedb...

CVE-2026-53353 hsr: Remove WARN_ONCE() in hsr_addr_is_self().

In the Linux kernel, the following vulnerability has been resolved: hsr: Remove WARNONCE in hsraddrisself. syzbot reported the warning 0 in hsraddrisself, whose assumption is simply wrong. hsr-selfnode is cleared in hsrdelselfnode, which is called from hsrdellink. Since dev-rtnllinkops-dellink is...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Networking layer: hsr – Fixed potential use-after-free issues. The skb structure is passed to netifrx, which may free it. After this call, dereferencing the skb structure may lead to a use-after-free condition...

SUSE CVE-2025-39872

In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsrgetportndev hsrgetportndev calls hsrforeachport, which need to hold rcu lock. On the other hand, before return the port device, we need to hold the device reference to avoid UaF in the caller...

CVE-2024-26707

In the Linux kernel, the following vulnerability has been resolved: net: hsr: remove WARNONCE in sendhsrsupervisionframe Syzkaller reported 1 hitting a warning after failing to allocate resources for skb in hsrinitskb. Since a WARNONCE call will not help much in this case, it might be prudent to...