linux-kernel - Re: [PATCH 0/3] iopoll fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 24 Jun 2020 20:03:00 +0300
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] iopoll fixes

On 24/06/2020 19:50, Pavel Begunkov wrote:
> Did more comprehensive iopoll testing and found some more problems.
> 
> [1] is from the previous series. Actually, v2 for this one, addressing
> the double-reissue bug found by Jens. It maybe not as efficient, but
> simple and easy to backport.
> 
> [2,3] current->mm NULL deref

And yet there are issues left... I'll resend

> 
> Pavel Begunkov (3):
>   io_uring: fix hanging iopoll in case of -EAGAIN
>   io_uring: fix current->mm NULL dereference on exit
>   io_uring: fix NULL-mm for linked reqs
> 
>  fs/io_uring.c | 33 ++++++++++++++++++++++-----------
>  1 file changed, 22 insertions(+), 11 deletions(-)
> 

-- 
Pavel Begunkov