The vulnerability of the ipip6_tunnel_xmit() function in the net/ipv6/sit.c module of the Linux kernel’s IPv6 implementation allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the ipip6tunnelxmit function in the net/ipv6/sit.c module of the Linux kernel’s IPv6 implementation is related to the dereferencing of a pointer with an expired validity period. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality,...

CVE-2026-53228: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6tunnelxmit caches the inner IPv6 header pointer at function entry and continues using it after iptunnelhandleoffloads. For GSO skbs, iptunnelhandleoffloads calls...