On Oct 23, 2012, at 1:28 PM, Dan Carpenter wrote:
> Hello Ed L. Cashin,
>
> The patch 6fde53abc51d: "aoe: print warning regarding a common reason
> for dropped transmits" from Oct 23, 2012, leads to the following
> warning:
> drivers/block/aoe/aoenet.c:62 tx()
> error: 'skb' was already used up by dev_queue_xmit()
>
> 61) if (dev_queue_xmit(skb) == NET_XMIT_DROP && net_ratelimit())
> 62) pr_warn("aoe: packet could not be sent on %s. %s\n",
> 63) skb->dev ? skb->dev->name : "netif",
> 64) "consider increasing tx_queue_len");
>
> It's a use after free bug.
Thanks for the report. The Documentation/SubmittingPatches says,
Please note that this tag should not be added without the
reporter's permission, especially if the problem was not
reported in a public forum.
Which surprisingly means that I should ask you for permission before
mentioning you in a "Reported-by:" tag, even though you reported it in
a public forum. So is it OK?
--
Ed Cashin
ecashin@xxxxxxxxxx
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