CVE-2026-74562

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTMNEWROUTE/RTMDELROUTE run...

CVE-2026-74562

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTMNEWROUTE/RTMDELROUTE run...

CVE-2026-74562 nexthop: take nh->lock for f6i_list walks in replace check and notify

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTMNEWROUTE/RTMDELROUTE run...

CVE-2026-74561

Summary: CVE-2026-74561 is a Linux kernel vulnerability where nh_rt_cache_flush walks an f6i_list without proper locking, racing with unlocked IPv6 route add/delete operations and freeing fib6_info. The fix migrates the sernum update to a broader netns scope by using rt_genid_bump_ipv6() instead ...

CVE-2026-74561 nexthop: avoid unlocked f6i_list walk in nh_rt_cache_flush

In the Linux kernel, the following vulnerability has been resolved: nexthop: avoid unlocked f6ilist walk in nhrtcacheflush nhrtcacheflush walks nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock, racing the unlocked IPv6 route add/delete that mutate the list under nh-loc...

CVE-2026-74561

In the Linux kernel, the following vulnerability has been resolved: nexthop: avoid unlocked f6ilist walk in nhrtcacheflush nhrtcacheflush walks nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock, racing the unlocked IPv6 route add/delete that mutate the list under nh-loc...

CVE-2026-74561 nexthop: avoid unlocked f6i_list walk in nh_rt_cache_flush

In the Linux kernel, the following vulnerability has been resolved: nexthop: avoid unlocked f6ilist walk in nhrtcacheflush nhrtcacheflush walks nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock, racing the unlocked IPv6 route add/delete that mutate the list under nh-loc...

EUVD-2026-59626

In the Linux kernel, the following vulnerability has been resolved: nexthop: avoid unlocked f6ilist walk in nhrtcacheflush nhrtcacheflush walks nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock, racing the unlocked IPv6 route add/delete that mutate the list under nh-loc...

Linux Distros Unpatched Vulnerability : CVE-2026-74561

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nexthop: avoid unlocked f6ilist walk in nhrtcacheflush nhrtcacheflush walks nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock, racing...

Linux Distros Unpatched Vulnerability : CVE-2026-74562

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop...

PT-2026-73013

In the Linux kernel, the following vulnerability has been resolved: nexthop: avoid unlocked f6i list walk in nh rt cache flush nh rt cache flush walks nh-f6i list during an RTNL-serialized nexthop replace without holding nh-lock, racing the unlocked IPv6 route add/delete that mutate the list unde...

PT-2026-73014

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6i list walks in replace check and notify fib6 check nh list and nexthop replace notify walk nh-f6i list during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTM NEWROUTE/RTM DELROUTE...

CVE-2026-64576

A flaw was found in the Linux kernel. During nexthop resolution, an uninitialized variable is used if a memory allocation fails. This can lead to the system attempting to access uninitialized stack memory, causing a general protection fault and a kernel panic. This vulnerability results in a Deni...

SUSE 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

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

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...

UBUNTU-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...

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 nexthop: initialize extack in nh_res_bucket_migrate()

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...