PT-2026-64631 · Linux · Linux
CVE-2026-64410
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Published
2026-07-25
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Updated
2026-07-25
None
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In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: IPIP tunnel hardware offload is not yet support
No driver supports for IPIP tunnels yet, give up early on setting up the
hardware offload for this scenario.
This patch adds a stub that can be enhanced to add more configuration
that are currently not supported. As of now, the offload work is
enqueued to the worker, then ignored if the hardware offload
configuration is not supported.
Check the NF FLOW HW flag to know if this entry was already tried once
to be offloaded so this is not retried on refresh when unsupported. Move
NF FLOW HW flag check to nf flow offload add(). If this NF FLOW HW flag
is unset the del and stats variants are never called.
This can be updated later on to skip hardware offload work to be queued
in case hardware offload does not support it.
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Related Identifiers
Affected Products
Linux