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From: Andrew Morton <akpm@osdl.org>
To: Dave Jones <davej@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: yet more slab corruption.
Date: Tue, 7 Mar 2006 23:14:14 -0800	[thread overview]
Message-ID: <20060307231414.34c3b3a4.akpm@osdl.org> (raw)
In-Reply-To: <20060307235940.GA16843@redhat.com>

Dave Jones <davej@redhat.com> wrote:
>
> Garg. Is there no end to these ?
> That kernel is based off 2.6.16rc5-git8
> 
> This brings the current count up to 8 different patterns filed
> against our 2.6.16rc tree in Fedora bugzilla.
> (One of them doesn't count as it's against the out-of-tree bcm43xx driver).
> 

A use-after-free on size-2048.  We wrote -1L and 0L apparently 0x6b8 bytes
into the object.  That's an awfully large offset for tty_struct - off the
end.  Sometimes the buffer was used as skb data too.

Unless it was a DMA scribble, CONFIG_DEBUG_PAGEALLOC should catch this.

  reply	other threads:[~2006-03-08  7:16 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-07 23:59 Dave Jones
2006-03-08  7:14 ` Andrew Morton [this message]
2006-04-04 13:44   ` Andreas Gruenbacher
2006-04-04 14:21     ` Jan Niehusmann

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