From: Eric Dumazet <edumazet@google.com>
Date: Fri, 13 Mar 2015 16:49:59 +0000 (-0700)
Subject: inet_diag: fix possible overflow in inet_diag_dump_one_icsk()
X-Git-Tag: omap-for-v4.2/o2_dc~296^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8e2c80d7ec00d020320f905822bf49c5ad85250;p=pandora-kernel.git

inet_diag: fix possible overflow in inet_diag_dump_one_icsk()

inet_diag_dump_one_icsk() allocates too small skb.

Add inet_sk_attr_size() helper right before inet_sk_diag_fill()
so that it can be updated if/when new attributes are added.

iproute2/ss currently does not use this dump_one() interface,
this might explain nobody noticed this problem yet.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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