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Revert "Merge branch 'ipv6-overflow-arith'"

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Linus dislikes these changes. To not hold up the net-merge let's revert
it for now and fix the bug like Linus suggested.

This reverts commit ec3661b422, reversing
changes made to c80dbe0461.

Cc: Linus Torvalds <[email protected]>
Signed-off-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Hannes Frederic Sowa 2015-10-28 13:21:03 +01:00 • committed by David S. Miller
commit 1e0d69a9cc
3 changed files with 1 additions and 27 deletions
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6
net/ipv6/ip6_output.c
View file

@ -28,7 +28,6 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/overflow-arith.h>
#include <linux/string.h>
#include <linux/socket.h>
#include <linux/net.h>
@ -585,10 +584,7 @@ int ip6_fragment(struct sock *sk, struct sk_buff *skb,
if (np->frag_size)
mtu = np->frag_size;
}
if (overflow_usub(mtu, hlen + sizeof(struct frag_hdr), &mtu) ||
mtu <= 7)
goto fail_toobig;
mtu -= hlen + sizeof(struct frag_hdr);
frag_id = ipv6_select_ident(net, &ipv6_hdr(skb)->daddr,
&ipv6_hdr(skb)->saddr);