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Commit 24fc7979 authored by Stefano Brivio's avatar Stefano Brivio Committed by Steffen Klassert
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ip_tunnel: Clamp MTU to bounds on new link



Otherwise, it's possible to specify invalid MTU values directly
on creation of a link (via 'ip link add'). This is already
prevented on subsequent MTU changes by commit b96f9afe
("ipv4/6: use core net MTU range checking").

Fixes: c5441932 ("GRE: Refactor GRE tunneling code.")
Signed-off-by: default avatarStefano Brivio <sbrivio@redhat.com>
Acked-by: default avatarSabrina Dubroca <sd@queasysnail.net>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent dd1df247
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