CVE-2026-80978

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised neededheadroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

CVE-2026-80978

CVE-2026-80978 affects the Linux kernel networking subsystem, specifically the IP tunnel devices. When a local attacker stacks user-created IP tunnel devices, the derived needed_headroom can exceed the 16-bit skb header offset range, causing those offsets to wrap during skb head expansion. The fi...

EUVD-2026-76301

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised neededheadroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

PT-2026-90108

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description IP tunnel devices derive their advertised needed headroom from lower output devices. In stacked configurations of user-created devices, this derived value can exceed the capacity of 16-b...

PT-2026-85717

In the Linux kernel, the following vulnerability has been resolved: batman-adv: reject unrepresentable multicast TVLV offsets The network and transport header fields in struct sk buff are 16-bit offsets from skb-head, and U16 MAX is reserved as the unset transport header value. batadv tvlv call...