kernel: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: use skbvlaninetprepare in ip6tnlrcv Blamed commit did not take care of VLAN encapsulations as spotted by syzbot 1. Use skbvlaninetprepare instead of pskbinetmaypull. 1 BUG: KMSAN: uninit-value in INETECNdecapsulate...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: ip6tunnel: Fixed the handling of NEXTHDRFRAGMENT in ip6tnlparsetlvenclim. syzbot pointed out that the handling of NEXTHDRFRAGMENT is incorrect. The “fragoff” operation can only be performed if enough bytes are pulled into the...

SUSE CVE-2026-74597

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6send. The clone still carries the outer packet's inet6skbparm in...

CVE-2026-74597

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6send. The clone still carries the outer packet's inet6skbparm in...

AZL-97350 CVE-2026-74597 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6send. The clone still carries the outer packet's inet6skbparm in...

CVE-2026-74597

This vulnerability affects the Linux kernel 's ip6_tunnel module, specifically the ip6ip6_err() function. When processing an outer IPv6 ICMP error packet, the function clones and pulls the skb to the quoted inner IPv6 packet but fails to clear skb2->cb[], leaving the outer packet's inet6_skb_p...

EUVD-2026-64534

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6send. The clone still carries the outer packet's inet6skbparm in...

CVE-2026-74597 ip6_tunnel: clear skb2->cb[] in ip6ip6_err()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6send. The clone still carries the outer packet's inet6skbparm in...

CVE-2026-74597 ip6_tunnel: clear skb2->cb[] in ip6ip6_err()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6send. The clone still carries the outer packet's inet6skbparm in...

Linux Distros Unpatched Vulnerability : CVE-2026-74597

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ip6tunnel: clear skb2-cb in ip6ip6err ip6ip6err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to...

CVE-2026-72051

A flaw was found in the Linux kernel's IPv6 tunnel ip6tunnel handling. A local attacker, privileged in one network namespace but not another, could exploit a missing capability check in the ip6tnlchangelink function. This vulnerability allows the attacker to modify an IPv6 tunnel residing in a...

CVE-2026-72051

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

CVE-2026-72051

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

UBUNTU-CVE-2026-72051

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

CVE-2026-72051

The CVE-2026-72051 issue affects the Linux kernel’s ip6_tunnel code: ip6_tnl_changelink() incorrectly checks CAP_NET_ADMIN only against the device netns (dev_net(dev)), allowing a caller privileged in that netns but not in the tunnel’s netns (t->net) to rewrite a tunnel. The remediation is toG...

CVE-2026-72051 net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

EUVD-2026-59009

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

Linux Distros Unpatched Vulnerability : CVE-2026-72051

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink operates on at most two netns, devnetdev and the tunnel link netns t-net...

SUSE-SU-2026:22761-1 Security update for the Linux Kernel (Live Patch 2 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.7.1 fixes various security issues The following security issues were fixed: - CVE-2025-71089: iommu: disable SVA when CONFIGX86 is set bsc1256615. - CVE-2026-23393: bridge: cfm: Fix race condition in peermep deletion bsc1260524. -...

SUSE-SU-2026:22870-1 Security update for the Linux Kernel (Live Patch 10 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.31.1 fixes various security issues The following security issues were fixed: - CVE-2026-31505: iavf: fix out-of-bounds writes in iavfgetethtoolstats bsc1263094. - CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of...