Re: [PATCH] bonding: Fix use after free in unregister path

Chris Wright
2007-06-21T00:09:55Z

* Jeff Garzik (jeff@garzik.org) wrote:
> Jay Vosburgh wrote:
> > The following patch (based on a patch from Stephen Hemminger
> ><shemminger@linux-foundation.org>) removes use after free conditions in
> >the unregister path for the bonding master. Without this patch, an
> >operation of the form "echo -bond0 > /sys/class/net/bonding_masters"
> >would trigger a NULL pointer dereference in sysfs. I was not able to
> >induce the failure with the non-sysfs code path, but for consistency I
> >updated that code as well.
> >
> > I also did some testing of the bonding /proc file being open
> >while the bond is being deleted, and didn't see any problems there.
> >
> >Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
>
> applied to #upstream-fixes

This was originally discovered on 2.6.21.5 IIRC, so plan to send this
to -stable as well?

thanks,
-chris