On Sat, Sep 17, 2016 at 09:43:02PM +0200, Christian Lamparter wrote:
> Ben Greear reported:
> > I see lots of instability as soon as I load up the carl9710 NIC.
> > My application is going to be poking at it's debugfs files...
> >
> > BUG: KASAN: slab-out-of-bounds in carl9170_debugfs_read+0xd5/0x2a0
> > [carl9170] at addr ffff8801bc1208b0
> > Read of size 8 by task btserver/5888
> > =======================================================================
> > BUG kmalloc-256 (Tainted: G        W      ): kasan: bad access detected
> > -----------------------------------------------------------------------
> >
> > INFO: Allocated in seq_open+0x50/0x100 age=2690 cpu=2 pid=772
> >...
> 
> This breakage was caused by the introduction of intermediate
> fops in debugfs by commit 9fd4dcece43a
> ("debugfs: prevent access to possibly dead file_operations at file open")

Because of this, these should all be backported to 4.7-stable, and
4.8-stable, right?

thanks,

greg k-h

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