On Wed, Nov 11, 2015 at 10:19:28AM +0100, Francois Romieu wrote:
> Dave Jones <da...@codemonkey.org.uk> :
> > This happens during boot, (and then there's a flood of traces that happen
> > so fast
> > afterwards it completely overwhelms serial console; not sure if they're the
> > same/related or not).
> >
> > ==================================================================
> > BUG: KASAN: use-after-free in rtl8169_poll+0x4b6/0xb70 at addr
> > ffff8801d43b3288
> > Read of size 1 by task kworker/0:3/188
> > =============================================================================
> > BUG kmalloc-256 (Not tainted): kasan: bad access detected
> > -----------------------------------------------------------------------------
> >
> > Disabling lock debugging due to kernel taint
> > INFO: Slab 0xffffea000750ecc0 objects=16 used=16 fp=0x (null)
> > flags=0x8000000000000080
> > INFO: Object 0xffff8801d43b3200 @offset=512 fp=0xffff8801d43b3800
> >
> > Bytes b4 ffff8801d43b31f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > ................
> > Object ffff8801d43b3200: 00 38 3b d4 01 88 ff ff 00 00 00 00 00 00 00 00
> > .8;.............
>
> Does the patch below cure it ?
It did, thanks for the quick turnaround! It also turns out this was responsible
for the flood of spew afterwards. It's completely silent when I apply your diff.
Dave
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