linux-kernel - Re: [syzbot] possible deadlock in iter_file_splice

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Date:   Wed, 28 Jul 2021 13:57:07 -0700
From:   syzbot <syzbot+4bdbcaa79e8ee36fe6af@...kaller.appspotmail.com>
To:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-unionfs@...r.kernel.org, miklos@...redi.hu,
        mszeredi@...hat.com, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: [syzbot] possible deadlock in iter_file_splice_write (2)

Hello,

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

Reported-and-tested-by: syzbot+4bdbcaa79e8ee36fe6af@...kaller.appspotmail.com

Tested on:

commit:         cdaddca6 ovl: fix deadlock in splice write
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=4aa932b5eaeee9ef
dashboard link: https://syzkaller.appspot.com/bug?extid=4bdbcaa79e8ee36fe6af
compiler:       Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.1

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