CVE-2026-68301

A flaw was found in the Linux kernel's High-availability Seamless Redundancy HSR networking module. When an HSR slave device is unregistered, the system fails to properly remove synced Virtual Local Area Networks VLANs. This oversight causes the slave device to retain a reference count on these...

UBUNTU-CVE-2026-68301

In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix memory leak on slave unregistration by removing synced VLANs When an HSR master device is brought UP, it auto-adds VLAN 0 via vlanvid0add, which propagates VID 0 to its slave devices slave A and B. If a slave device...

EUVD-2026-55402

In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix memory leak on slave unregistration by removing synced VLANs When an HSR master device is brought UP, it auto-adds VLAN 0 via vlanvid0add, which propagates VID 0 to its slave devices slave A and B. If a slave device...

CVE-2026-68301 net: hsr: fix memory leak on slave unregistration by removing synced VLANs

In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix memory leak on slave unregistration by removing synced VLANs When an HSR master device is brought UP, it auto-adds VLAN 0 via vlanvid0add, which propagates VID 0 to its slave devices slave A and B. If a slave device...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: hsr: It is necessary to hold the rcu lock and dev lock during the execution of hsrgetportndev. The hsrgetportndev function calls hsrforeachport, which requires holding the rcu lock. On the other hand, before returning the port...

Linux Distros Unpatched Vulnerability : CVE-2026-68301

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: hsr: fix memory leak on slave unregistration by removing synced VLANs When an HSR master device is brought UP, it auto-adds VLAN 0 via vlanvid0add, which...

SUSE CVE-2026-64000

In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix potential OOB access in supervision frame handling Ensure the entire TLV header is linearized before access by adding sizeofstruct hsrsuptlv to the pskbmaypull calls. Without this, a truncated frame could cause an...

CVE-2026-64123

A flaw was found in the Linux kernel's High-availability Seamless Redundancy HSR networking component. When HSR node-list and node-status operations are performed, a generic-netlink reader might retain a pointer to a freed node table. This can lead to a use-after-free vulnerability, potentially...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-64000

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: hsr: fix potential OOB access in supervision frame handling Ensure the entire TLV header is linearized before access by adding sizeofstruct hsrsuptlv to th...

CVE-2026-64123 net: hsr: defer node table free until after RCU readers

In the Linux kernel, the following vulnerability has been resolved: 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 through hsrgetnextnode and hsrgetnodedata, but RTMDELLINK teardown remov...

CVE-2026-64123

In the Linux kernel, the following vulnerability has been resolved: 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 through hsrgetnextnode and hsrgetnodedata, but RTMDELLINK teardown remov...

EUVD-2026-45808

In the Linux kernel, the following vulnerability has been resolved: 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 through hsrgetnextnode and hsrgetnodedata, but RTMDELLINK teardown remov...

CVE-2026-64123

In the Linux kernel, the following vulnerability has been resolved: 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 through hsrgetnextnode and hsrgetnodedata, but RTMDELLINK teardown remov...

CVE-2026-64000

In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix potential OOB access in supervision frame handling Ensure the entire TLV header is linearized before access by adding sizeofstruct hsrsuptlv to the pskbmaypull calls. Without this, a truncated frame could cause an...

PT-2026-61317

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds access issue exists in the handling of supervision frames within the High-availability Seamless Redundancy HSR network protocol. The problem occurs when a truncated fram...

SUSE CVE-2026-53353

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...

Linux Distros Unpatched Vulnerability : CVE-2026-53353

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - hsr: Remove WARNONCE in hsraddrisself. syzbot reported the warning 0 in hsraddrisself, whose assumption is simply wrong. hsr-selfnode is cleared in...

CVE-2026-53353

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...

CVE-2026-53353

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...