CVE-2026-97974 ipv6: null-check fib6_node before accessing in __ip6_del_rt_siblings()

In the Linux kernel, the following vulnerability has been resolved: ipv6: null-check fib6node before accessing in ip6delrtsiblings syzbot reported a null-ptr-deref in ip6delrtsiblings 0. The stack trace hinted towards a null dereference of rt-fib6node when fn-leaf is accessed in ip6delrtsiblings...

CVE-2026-97974

The Linux kernel contains a null-pointer dereference vulnerability within the ipv6 networking stack, specifically in the __ip6_del_rt_siblings() function. The issue occurs because rt->fib6_node can be set to NULL by a concurrent thread (e.g., when replacing an ECMP route via RTM_NEWROUTE with ...

EUVD-2026-86628

In the Linux kernel, the following vulnerability has been resolved: ipv6: null-check fib6node before accessing in ip6delrtsiblings syzbot reported a null-ptr-deref in ip6delrtsiblings 0. The stack trace hinted towards a null dereference of rt-fib6node when fn-leaf is accessed in ip6delrtsiblings...

CVE-2026-97974

In the Linux kernel, the following vulnerability has been resolved: ipv6: null-check fib6node before accessing in ip6delrtsiblings syzbot reported a null-ptr-deref in ip6delrtsiblings 0. The stack trace hinted towards a null dereference of rt-fib6node when fn-leaf is accessed in ip6delrtsiblings...

CVE-2026-97939 ipmr: account multicast table and route memory

In the Linux kernel, the following vulnerability has been resolved: ipmr: account multicast table and route memory A netadmin in a user+net namespace can create many IPv4 and IPv6 multicast routing tables with MRTTABLE and MRT6TABLE. Each unseen id allocates an mrtable via the shared mrtablealloc...

EUVD-2026-86794

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix fib6 walker UAF on seq stop ipv6routeiteractive treats a walker in FWSU at the table root as already unlinked. fib6delroute can move a still-linked walker into that same state when the current leaf is the last route at...

CVE-2026-97940 ipv6: fix fib6 walker UAF on seq stop

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix fib6 walker UAF on seq stop ipv6routeiteractive treats a walker in FWSU at the table root as already unlinked. fib6delroute can move a still-linked walker into that same state when the current leaf is the last route at...

EUVD-2026-86793

In the Linux kernel, the following vulnerability has been resolved: ipmr: account multicast table and route memory A netadmin in a user+net namespace can create many IPv4 and IPv6 multicast routing tables with MRTTABLE and MRT6TABLE. Each unseen id allocates an mrtable via the shared mrtablealloc...

CVE-2026-97940 ipv6: fix fib6 walker UAF on seq stop

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix fib6 walker UAF on seq stop ipv6routeiteractive treats a walker in FWSU at the table root as already unlinked. fib6delroute can move a still-linked walker into that same state when the current leaf is the last route at...

CVE-2026-97940

The Linux kernel is affected by a Use-After-Free (UAF) vulnerability in the ipv6 component. The issue arises because ipv6_route_iter_active() incorrectly treats a walker in FWS_U at the table root as already unlinked. This allows fib6_del_route() to move a still-linked walker into that state when...

CVE-2026-97602 inet: frags: invalidate queues before flushing them

In the Linux kernel, the following vulnerability has been resolved: inet: frags: invalidate queues before flushing them fqdirpreexit flushes the skbs from incomplete queues without changing their completion state. A fragment which found a queue before highthresh was cleared can then acquire the...

CVE-2026-97597 ipv6: flowlabel: cap duplicate leases per socket

In the Linux kernel, the following vulnerability has been resolved: ipv6: flowlabel: cap duplicate leases per socket ipv6flowlabelget allocates an ipv6flsocklist entry for every successful GET. The recheck path for a compatible existing flowlabel links another lease without applying any lease...

CVE-2026-97597

The Linux kernel contains a vulnerability in the ipv6 flowlabel mechanism where the ipv6_flowlabel_get() function fails to apply lease admission checks during the recheck path for compatible existing flowlabels. This allows repeated GET requests for a shareable label to grow a socket's lease list...

EUVD-2026-86728

In the Linux kernel, the following vulnerability has been resolved: ipv6: flowlabel: cap duplicate leases per socket ipv6flowlabelget allocates an ipv6flsocklist entry for every successful GET. The recheck path for a compatible existing flowlabel links another lease without applying any lease...

CVE-2026-97597

In the Linux kernel, the following vulnerability has been resolved: ipv6: flowlabel: cap duplicate leases per socket ipv6flowlabelget allocates an ipv6flsocklist entry for every successful GET. The recheck path for a compatible existing flowlabel links another lease without applying any lease...

CVE-2024-38063-Exploit-Refactoring

CVE-2024-38063 Exploit Advanced exploitation tool with precision error handling and DO-176C compliant execution. Overview This is a specialized security assessment tool for testing Windows IPv6 vulnerability mitigation on target systems. Includes automated network interface detection, packet...

CVE-2021-24086

CVE-2021-24086 这是针对 CVE-2021-24086（“Windows TCP/IP 拒绝服务漏洞”）的概念验证代码，该漏洞是 tcpip.sys 中的一个空指针解引用，微软于 2021 年 2 月修补。根据这条 推文，该漏洞由 @piazzt 发现。它可以通过发送恶意的 IPv6 UDP 数据包远程触发。 你可以在此阅读微软的博客：影响 TCP/IP 的多项安全更新：CVE-2021-24074、CVE-2021-24094 和 CVE-2021-24086。该博客简要讨论了影响和缓解/规避措施。 关于根本原因的更深入讨论可在 doar-e.github.io...

UBUNTU-CVE-2026-98099

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: use rcuassignpointer for rcu list updates Several places in net/ipv6/mcast.c update RCU-protected lists np-ipv6mclist, idev-mclist, idev-mctomb using direct pointer assignments instead of rcuassignpointer: 1. In...

Linux Distros Unpatched Vulnerability : CVE-2026-97940

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv6: fix fib6 walker UAF on seq stop ipv6routeiteractive treats a walker in FWSU at the table root as already unlinked. fib6delroute can move a still-linked...

CVE-2026-91768: Incomplete Comparison with Missing Factors

The IPv6 branch of the FastCGI client access check compares only the first 12 bytes of a 16-byte IPv6 address, so listen.allowedclients matches on a /96 prefix instead of the exact address. An attacker who can source an address sharing the first 96 bits with an allowed one passes the check and...