Re: [BUG] NULL pointer dereference in skb_dequeue

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From: Jarek Poplawski <jarkao2@...>

To: David Miller <davem@...>

Cc: <emil.s.tantilov@...>, <jeffrey.t.kirsher@...>, <netdev@...>

Subject: Re: [BUG] NULL pointer dereference in skb_dequeue

Date: Sunday, August 3, 2008 - 5:50 am

On Sun, Aug 03, 2008 at 11:29:26AM +0200, Jarek Poplawski wrote:
...
quoted text> After some re-checking one more question: why do you think this
> qdisc_root_lock() is safe as sch_tree_lock() (or anywhere else)? It
> seems, eg. during deactivation it can get root_lock of qdisc_default,
> and proceed with another qdisc?

I've just seen this new patch with ASSERT_RTNL(), so now I understand.

Jarek P.
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Messages in current thread:

[BUG] NULL pointer dereference in skb_dequeue, Jeff Kirsher, (Fri Aug 1, 7:40 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Fri Aug 1, 9:03 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Fri Aug 1, 9:20 pm)

RE: [BUG] NULL pointer dereference in skb_dequeue, Tantilov, Emil S, (Sat Aug 2, 5:36 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sat Aug 2, 9:37 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sat Aug 2, 12:27 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Sat Aug 2, 3:18 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sat Aug 2, 4:19 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sun Aug 3, 5:29 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Sun Aug 3, 5:56 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sun Aug 3, 6:08 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sun Aug 3, 5:50 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Sat Aug 2, 3:22 pm)

RE: [BUG] NULL pointer dereference in skb_dequeue, Tantilov, Emil S, (Sat Aug 2, 3:45 pm)

RE: [BUG] NULL pointer dereference in skb_dequeue, Tantilov, Emil S, (Sat Aug 2, 5:46 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Sat Aug 2, 10:26 pm)

RE: [BUG] NULL pointer dereference in skb_dequeue, Tantilov, Emil S, (Fri Aug 8, 3:38 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, David Miller, (Sat Aug 9, 3:29 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sat Aug 9, 6:32 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Sun Aug 10, 3:04 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Mon Aug 11, 6:01 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Paul E. McKenney, (Mon Aug 11, 7:26 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Tue Aug 12, 2:36 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Paul E. McKenney, (Tue Aug 12, 9:42 am)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Tue Aug 12, 2:09 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Paul E. McKenney, (Tue Aug 12, 4:18 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Jarek Poplawski, (Tue Aug 12, 5:15 pm)

Re: [BUG] NULL pointer dereference in skb_dequeue, Paul E. McKenney, (Tue Aug 12, 6:33 pm)

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