From: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Date: Fri, 3 Aug 2012 10:57:52 +0000 (+0900)
Subject: net_sched: gact: Fix potential panic in tcf_gact().
X-Git-Tag: v3.6-rc2~24^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=696ecdc10622d86541f2e35cc16e15b6b3b1b67e;p=pandora-kernel.git

net_sched: gact: Fix potential panic in tcf_gact().

gact_rand array is accessed by gact->tcfg_ptype whose value
is assumed to less than MAX_RAND, but any range checks are
not performed.

So add a check in tcf_gact_init(). And in tcf_gact(), we can
reduce a branch.

Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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