Re: use-after-free" with v5.10.y caused by backport of a298232ee6b9 ("io_uring: fix link timeout refs")

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On Mon, Jul 26, 2021 at 11:57:22AM +0100, Pavel Begunkov wrote:
> On 7/26/21 11:29 AM, Sudip Mukherjee wrote:
> > Hi Pavel,
> > 
> > We had been running syzkaller on v5.10.y and a "use after free" is being
> > reported for v5.10.43+ kernels.
> 
> "... # 5.12+", weird, but perhaps due to dependencies.
> Thanks for letting know.
> 
> 
> Greg, Sasha, should be same as reported for 5.12
> 
> https://www.spinics.net/lists/stable/msg485116.html
> 
> Can you try to apply it to 5.10 or should I resend?

I just tried applying those patches and they did not work.  So can you
provide some new backports?

thanks,

greg k-h



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