From: Nikolay Aleksandrov <ra...@blackwall.org>
Date: Sat, 21 Nov 2015 19:46:19 +0100
> From: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
>
> When vrf's ->newlink is called, if register_netdevice() fails then it
> does free_netdev(), but that's also done by rtnl_newlink() so a second
> free happens and memory gets corrupted, to reproduce execute the
> following line a couple of times (1 - 5 usually is enough):
> $ for i in `seq 1 5`; do ip link add vrf: type vrf table 1; done;
> This works because we fail in register_netdevice() because of the wrong
> name "vrf:".
>
> And here's a trace of one crash:
...
> Fixes: 193125dbd8eb ("net: Introduce VRF device driver")
> Signed-off-by: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
Applied and queued up for -stable, thanks.
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