CVE-2026-10686

Zephyr IPv6 forwarding path fails to decrement the hop limit, allowing looping unicast packets and potentially causing a forwarding storm (DoS). The issue affects IPv6 routes in the net_route_packet() (explicit-route) and net_route_packet_if() (on-link) paths, across releases v1.8.0 through v4.4....

PT-2026-66770

Zephyr's IPv6 forwarding path re-sent routed unicast packets without ever decrementing the IPv6 hop limit. Both routing branches of ipv6 route packet subsys/net/ip were affected: the explicit-route path net route packet and the on-link cross-interface path net route packet if. Each set the packet...

CVE-2026-15144

The vulnerability CVE-2026-15144 affects @fastify/rate-limit prior to version 11.2.0. It buckets rate-limit keys using the verbatim client IP string from request.ip, allowing an IPv6 client to control a large address range (a /64) and bypass limits by rotating addresses or using different textual...

RLSA-2026:47011 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ipv6: fix possible UAF in icmpv6rcv CVE-2026-53006 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer to...

SUSE-SU-2026:3354-1 Security update for the Linux Kernel (Live Patch 51 for SUSE Linux Enterprise 15 SP4)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.205 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc126406...

Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.136 fixes various security issues: The following security issues were fixed: CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060...

CVE-2026-64542

In the Linux kernel, the following vulnerability has been resolved: ipv6: ndisc: fix NULL deref in acceptuntrackedna acceptuntrackedna re-fetches the inet6dev with in6devgetdev and dereferences idev-cnf.acceptuntrackedna without a NULL check, even though its only caller ndiscrecvna already fetche...

CVE-2026-64538

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix null-ptr-deref in fib6nhmtuchange. fib6nhmtuchange re-fetches idev via in6devgetarg-dev and dereferences idev-cnf.mtu6 without a NULL check. addrconfifdown clears dev-ip6ptr with RCUINITPOINTER after rt6disableip has...

kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels

A flaw was found in the Linux kernel's IPv6 networking implementation, specifically within the seg6 and rpl lwtunnels. A race condition can occur when handling destination cache entries, where a NOREF no reference destination object is used after it has been freed. This use-after-free vulnerabili...

Oracle Linux 9 : kernel (ELSA-2026-43307)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-43307 advisory. - net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels Antoine Tenart RHEL-179297 CVE-2026-46099 - fanotify: fix false positive on permission events...

CVE-2026-63922

A flaw was found in the Linux kernel's IPv6 extension header processing. When processing the Home Address Option HAO, the cached network header pointer may become invalid if the packet's memory is reallocated. This can lead to incorrect parsing of subsequent IPv6 Type-Length-Value TLV options,...

SUSE CVE-2026-63968

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6selectpath Found while auditing the same pattern Sashiko reported in rt6fillnode 1. Apply the same fix as commit f8d8ce1b515a "ipv6: fix possible infinite loop in fib6infousesdev". Writers...

CVE-2026-64116

A flaw was found in the Linux kernel's IPv6 In-situ Operations, Administration, and Maintenance IOAM module. This vulnerability allows a remote attacker to cause a system crash, leading to a Denial of Service DoS. The flaw occurs because the ipv6hopioam function does not properly validate a point...

Important: kernel-livepatch-6.12.88-119.157

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path CVE-2026-53362 Affected Packages: kernel-livepatch-6.12.88-119.157 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

CVE-2026-64132 ipv6: ioam: refresh hdr pointer before ioam6_event()

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: refresh hdr pointer before ioam6event Reported by Sashiko: In ipv6hopioam, the hdr pointer is initialized to point into the skb's linear data buffer. Later, the code calls skbensurewritable, which might reallocate the...

EUVD-2026-45742

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in rt6fillnode Sashiko reported this issue 1. Apply the same fix as commit f8d8ce1b515a "ipv6: fix possible infinite loop in fib6infousesdev". Writers holding tb6lock can listdelrcu&rt-fib6sibling...

EUVD-2026-45693

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

EUVD-2026-45690

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6changelink. ip netns add ns1 ip netns add ns2 ip -n ns1 link add vti6test type vti6 remote ::1 local ::2 key 7 ip -n ns1 link set vti6test netns ns2 ip -n ns2 link set vti6test type vti6 remote ::3...

CVE-2026-63912 xfrm: esp: restore combined single-frag length gate

In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: restore combined single-frag length gate The ESP out-of-place fast path appends the trailer in espoutputhead before espoutputtail allocates the destination page frag. The head-side gate currently checks skb-datalen and...

CVE-2026-63870

The CVE-2026-63870 issue affects linux ieee802154/6lowpan where non‑IPv6 packets (e.g., from an aoe driver) queued for transmission on a 6LoWPAN interface bypass the IPv6 check. The header creation function returns early and leaves lowpan_addr_info uninitialized in skb headroom; the transmit path...