linux-kernel - Re: possible deadlock in vfs

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Date:   Tue, 22 Jan 2019 06:26:03 -0800
From:   syzbot <syzbot+148c2885d71194f18d28@...kaller.appspotmail.com>
To:     arve@...roid.com, devel@...verdev.osuosl.org, dvyukov@...gle.com,
        ebiggers3@...il.com, gregkh@...uxfoundation.org, joelaf@...gle.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        maco@...roid.com, penguin-kernel@...ove.sakura.ne.jp,
        syzkaller-bugs@...glegroups.com, tkjos@...roid.com,
        tkjos@...gle.com
Subject: Re: possible deadlock in vfs_fallocate

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger  
crash:

Reported-and-tested-by:  
syzbot+148c2885d71194f18d28@...kaller.appspotmail.com

Tested on:

commit:         48b161983ae5 Merge tag 'xarray-5.0-rc3' of git://git.infra..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=dd3a020d055fa2e8
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16e6d908c00000

Note: testing is done by a robot and is best-effort only.