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(parent: 7a67e69) | patch
vti6: Fix dev->max_mtu setting
authorStefano Brivio <sbrivio@redhat.com>
Thu, 15 Mar 2018 16:17:13 +0000 (17:17 +0100)
committerSteffen Klassert <steffen.klassert@secunet.com>
Mon, 19 Mar 2018 07:45:50 +0000 (08:45 +0100)
commitf8a554b4aa9686bb2c12f6bae516e58783289a03
tree62c9d02997f5bd64d8868dc4c754eef7eaa2a84etree | snapshot
parent7a67e69a339a6824be2fc483073782ab2f47fcd2commit | diff
vti6: Fix dev->max_mtu setting

We shouldn't allow a tunnel to have IP_MAX_MTU as MTU, because
another IPv6 header is going on top of our packets. Without this
patch, we might end up building packets bigger than IP_MAX_MTU.

Fixes: b96f9afee4eb ("ipv4/6: use core net MTU range checking")
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/ipv6/ip6_vti.c diff | blob | history
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