From: Tilman Schmidt <tilman@imap.cc>
Date: Sat, 11 Oct 2014 11:46:29 +0000 (+0200)
Subject: isdn/gigaset: limit raw CAPI message dump length
X-Git-Tag: omap-for-v3.19/prcm-cleanup~58^2~49^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=097933ddcd28ef99c116651b20fd2e06717e0f0d;p=pandora-kernel.git

isdn/gigaset: limit raw CAPI message dump length

In dump_rawmsg, the length field from a received data package was
used unscrutinized, allowing an attacker to control the size of the
allocated buffer and the number of times the output loop iterates.
Fix by limiting to a reasonable value.

Spotted with Coverity.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
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