SUSE CVE-2026-63921

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6siocdevprivate. After patch 1/2 in this series, vti6update unlinks and relinks the tunnel through t-net. vti6siocdevprivate still uses devnetdev for the collision lookup. For a tunnel moved through...

CVE-2026-63921

CVE-2026-63921 affects the Linux kernel’s IPv6 VTI (ip6: vti) implementation. The root cause is a collision-lookup using dev_net(dev) in vti6_siocdevprivate(), which, after tunnels migrate between namespaces, can cause SIOCCHGTUNNEL to resolve against the wrong netns. This enables a scenario wher...

CVE-2026-63921 ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate().

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6siocdevprivate. After patch 1/2 in this series, vti6update unlinks and relinks the tunnel through t-net. vti6siocdevprivate still uses devnetdev for the collision lookup. For a tunnel moved through...

CVE-2026-63921

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6siocdevprivate. After patch 1/2 in this series, vti6update unlinks and relinks the tunnel through t-net. vti6siocdevprivate still uses devnetdev for the collision lookup. For a tunnel moved through...

SUSE CVE-2026-53221

In the Linux kernel, the following vulnerability has been resolved: ip6vti: fix incorrect tunnel matching in vti6tnllookup In vti6tnllookup, when an exact match for a tunnel fails, the code falls back to searching for wildcard tunnels: - Tunnels matching the packet's local address, with any remot...

PT-2026-50927

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The vti6 init net function fails to set the netns immutable flag on the per-netns fallback tunnel device 'ip6 vti0'. This flag is intended to prevent the device from being moved to anoth...

The vulnerability of the vti_tunnel_xmit() function in the net/ipv4/ip_vti.c module of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the vtitunnelxmit function in the net/ipv4/ipvti.c module of the Linux kernel is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected...