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(parent: 7a85c01) | patch
ip_tunnel: Clamp MTU to bounds on new link
authorStefano Brivio <sbrivio@redhat.com>
Thu, 15 Mar 2018 16:16:28 +0000 (17:16 +0100)
committerSteffen Klassert <steffen.klassert@secunet.com>
Mon, 19 Mar 2018 07:45:50 +0000 (08:45 +0100)
commite08d48997a848dcb9200643a8fa65c5c244dedf2
tree8c037f94e733a5a9d1f312c59b7c2c0a1697ac39tree | snapshot
parent7a85c019051d6197c79213cc5d5f9ee72ca2e0c2commit | diff
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 f79ab95c16fc
("ipv4/6: use core net MTU range checking").

Fixes: 65fe948e5424 ("GRE: Refactor GRE tunneling code.")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
net/ipv4/ip_tunnel.c diff | blob | history
Linux Kernel Source Tree.