netdev - Re: [Bugme-new] [Bug 27212] New: Warning kmemcheck: Caught 64-bit read from uninitialized memory in netlink_broadcast

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Date:	Thu, 27 Jan 2011 14:41:29 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org, casteyde.christian@...e.fr,
	akpm@...ux-foundation.org
Subject: Re: [Bugme-new] [Bug 27212] New: Warning kmemcheck: Caught 64-bit
 read from uninitialized memory in netlink_broadcast_filtered

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 26 Jan 2011 10:18:38 +0100

> [PATCH] net: add kmemcheck annotation in __alloc_skb()
> 
> pskb_expand_head() triggers a kmemcheck warning when copy of
> skb_shared_info is done in pskb_expand_head()
> 
> This is because destructor_arg field is not necessarily initialized at
> this point. Add kmemcheck_annotate_variable() call in __alloc_skb() to
> instruct kmemcheck this is a normal situation.
> 
> Resolves bugzilla.kernel.org 27212
> 
> Reference: https://bugzilla.kernel.org/show_bug.cgi?id=27212
> Reported-by: Christian Casteyde <casteyde.christian@...e.fr>
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
> CC: Andrew Morton <akpm@...ux-foundation.org>

Applied, thanks Eric.
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