xfrm: Prevent locally generated packets from direct output in tunnel mode

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[ Upstream commit 59630e2ccd ]

Add a check to ensure locally generated packets (skb->sk != NULL) do
not use direct output in tunnel mode, as these packets require proper
L2 header setup that is handled by the normal XFRM processing path.

Fixes: 5eddd76ec2 ("xfrm: fix tunnel mode TX datapath in packet offload mode")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jianbo Liu 2025-10-29 11:50:25 +02:00 • committed by Greg Kroah-Hartman

parent 18a9f216d6

commit f15a3d7910

1 changed files with 5 additions and 1 deletions

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net/xfrm/xfrm_output.c

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