Re: WARNING: lock held when returning to user space in ovl_write_iter

From: syzbot
Date: Thu Mar 12 2020 - 14:35:04 EST


Hello,

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

Reported-and-tested-by: syzbot+9331a354f4f624a52a55@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358
dashboard link: https://syzkaller.appspot.com/bug?extid=9331a354f4f624a52a55
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
patch: https://syzkaller.appspot.com/x/patch.diff?x=134ceef9e00000

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