CVE-2026-64576

In the Linux kernel, the following vulnerability has been resolved: nexthop: initialize extack in nhresbucketmigrate nhresbucketmigrate passes an uninitialized netlinkextack to callnexthopresbucketnotifiers. When nhnotifierresbucketinfoinit fails e.g. the kzalloc returns -ENOMEM, the error is...

CVE-2026-64576

The CVE-2026-64576 issue affects the Linux kernel’s nexthop resolution path (nh_res_bucket_migrate in net/ipv4/nexthop.c), where an uninitialized netlink_ext_ack could be used when allocation fails, leading to a kernel panic. The root cause is the use of an uninitialized extack, which may derefer...