linux-kernel - Re: [PATCH] net: cgroup: fix out of bounds accesses

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Message-ID: <4FFA9321.4030407@cn.fujitsu.com>
Date:	Mon, 09 Jul 2012 16:15:29 +0800
From:	Gao feng <gaofeng@...fujitsu.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	David Miller <davem@...emloft.net>, nhorman@...driver.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	lizefan@...wei.com, tj@...nel.org
Subject: Re: [PATCH] net: cgroup: fix out of bounds accesses

于 2012年07月09日 15:45, Eric Dumazet 写道:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> dev->priomap is allocated by extend_netdev_table() called from
> update_netdev_tables().
> And this is only called if write_priomap() is called.
> 
> But if write_priomap() is not called, it seems we can have out of bounds
> accesses in cgrp_destroy(), read_priomap() & skb_update_prio()
> 
> With help from Gao Feng
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Neil Horman <nhorman@...driver.com>
> Cc: Gao feng <gaofeng@...fujitsu.com>
> ---
> net/core/dev.c            |    8 ++++++--
> net/core/netprio_cgroup.c |    4 ++--
> 2 files changed, 8 insertions(+), 4 deletions(-)

Acked-by: Gao feng <gaofeng@...fujitsu.com>
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