Re: KASAN: slab-out-of-bounds Write in validate_chain

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Eric Biggers wrote:
> Hi John,
> 
> On Tue, Jun 25, 2019 at 04:07:00PM -0700, syzbot wrote:
> > syzbot has bisected this bug to:
> > 
> > commit e9db4ef6bf4ca9894bb324c76e01b8f1a16b2650
> > Author: John Fastabend <john.fastabend@xxxxxxxxx>
> > Date:   Sat Jun 30 13:17:47 2018 +0000
> > 
> >     bpf: sockhash fix omitted bucket lock in sock_close
> > 
> 
> Are you working on this?  This is the 6th open syzbot report that has been
> bisected to this commit, and I suspect it's the cause of many of the other
> 30 open syzbot reports I assigned to the bpf subsystem too
> (https://lore.kernel.org/bpf/20190624050114.GA30702@sol.localdomain/).
> 
> Also, this is happening in mainline (v5.2-rc6).
> 
> - Eric

Should have a fix today. It seems syzbot has found this bug repeatedly.

.John



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