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From: Cong Wang <amwang@redhat.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: netdev@vger.kernel.org, bugs@syam.in,
	David Ward <david.ward@ll.mit.edu>,
	Stephen Hemminger <stephen@networkplumber.org>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [Patch net] garp: fix a NULL pointer dereference bug
Date: Mon, 04 Mar 2013 17:55:55 +0800	[thread overview]
Message-ID: <1362390955.2383.2.camel@cr0> (raw)
In-Reply-To: <1362374790.15793.87.camel@edumazet-glaptop>

On Sun, 2013-03-03 at 21:26 -0800, Eric Dumazet wrote:
> 
> Nope this patch doesnt solve the problem
> 
> Crash is in :
> 
> 49 8b 1c c6             mov    (%r14,%rax,8),%rbx 
> 
> Thats because r14 (port) is NULL
> 
> 
> 

Hmm, but I can't see how it can be NULL, the only place of NULL'ing it
is inside garp_release_port(), right after the piece of code that I
patched.

Thanks!

  reply	other threads:[~2013-03-04  9:56 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-04  3:36 [Patch net] garp: fix a NULL pointer dereference bug Cong Wang
2013-03-04  3:41 ` Cong Wang
2013-03-04  5:26 ` Eric Dumazet
2013-03-04  9:55   ` Cong Wang [this message]
2013-03-04 14:56     ` Eric Dumazet

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