CVE-2026-74475 vxlan: use neigh_ha_snapshot() in route_shortcircuit()

In the Linux kernel, the following vulnerability has been resolved: vxlan: use neighhasnapshot in routeshortcircuit The neighbour hardware address n-ha can be updated asynchronously by the neighbour subsystem, protected by n-halock seqlock. Reading n-ha without holding the seqlock loop can lead t...

EUVD-2026-59668

In the Linux kernel, the following vulnerability has been resolved: vxlan: use neighhasnapshot in routeshortcircuit The neighbour hardware address n-ha can be updated asynchronously by the neighbour subsystem, protected by n-halock seqlock. Reading n-ha without holding the seqlock loop can lead t...

CVE-2026-74475

The CVE-2026-74475 vulnerability affects the Linux kernel’s VXLAN path: route_shortcircuit() now uses neigh_ha_snapshot() to copy n->ha under read_seqbegin()/read_seqretry(), preventing torn reads or partially updated MAC addresses caused by asynchronous updates to the neighbour hardware addre...