CVE-2026-89562 ip6_gre: fix hardware header length for NBMA tunnels

In the Linux kernel, the following vulnerability has been resolved: ip6gre: fix hardware header length for NBMA tunnels ip6gretnllinkconfigroute accumulates the lower device's hardware header length into dev-hardheaderlen whenever headerops is set. This is incorrect for both users of headerops...

CVE-2026-89562

In the Linux kernel, the following vulnerability has been resolved: ip6gre: fix hardware header length for NBMA tunnels ip6gretnllinkconfigroute accumulates the lower device's hardware header length into dev-hardheaderlen whenever headerops is set. This is incorrect for both users of headerops...

PT-2026-96421

In the Linux kernel, the following vulnerability has been resolved: ip6 gre: fix hardware header length for NBMA tunnels ip6gre tnl link config route accumulates the lower device's hardware header length into dev-hard header len whenever header ops is set. This is incorrect for both users of head...