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u32: negative offset fix
authorstephen hemminger <shemminger@vyatta.com>
Mon, 2 Aug 2010 13:44:13 +0000 (13:44 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 3 Aug 2010 05:07:45 +0000 (22:07 -0700)
commit66d50d25502cd9b7d6e3ebbf4e241259c1283eaf
treea8738a77a087122167a2d881a8d0833255bbadb4tree | snapshot (tar.bz2 tar.gz zip)
parenteabd8ba9060444cac5b89a3306e607c15ec37418commit | diff
u32: negative offset fix

It was possible to use a negative offset in a u32 match to reference
the ethernet header or other parts of the link layer header.
This fixes the regression caused by:

commit fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d
Author: Changli Gao <xiaosuo@gmail.com>
Date:   Wed Jun 2 07:32:42 2010 -0700

    cls_u32: use skb_header_pointer() to dereference data safely

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/cls_u32.c diff | blob | blame | history
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