linux-kernel - Re: INFO: task hung in io_uring

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:   Mon, 10 Aug 2020 12:11:36 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Pavel Begunkov <asml.silence@...il.com>,
        syzbot <syzbot+6338dcebf269a590b668@...kaller.appspotmail.com>,
        io-uring@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: INFO: task hung in io_uring_flush

On 8/10/20 10:08 AM, Pavel Begunkov wrote:
> On 10/08/2020 19:04, syzbot wrote:
>> syzbot has bisected this issue to:
>>
>> commit f86cd20c9454847a524ddbdcdec32c0380ed7c9b
>> Author: Jens Axboe <axboe@...nel.dk>
>> Date:   Wed Jan 29 20:46:44 2020 +0000
>>
>>     io_uring: fix linked command file table usage
> 
> There are several known problems with io_uring_cancel_files() including
> races and hangs. I had some drafts and going to patch it in a week or so.

I'll let you deal with this one, thanks.

-- 
Jens Axboe