Re: possible deadlock in f_getown

[Desmond Cheong Zhi Xi]

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

This bugs happens in a different function from "possible deadlock in
do_fcntl":
https://syzkaller.appspot.com/bug?extid=e6d5398a02c516ce5e70

But I believe it can be fixed with the same patch.

Best,
Desmond

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+807303...@syzkaller.appspotmail.com

Tested on:

commit: 3dbdb38e Merge branch 'for-5.14' of git://git.kernel.org/p..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=6b741412bc5295b5
dashboard link: https://syzkaller.appspot.com/bug?extid=8073030e235a5a84dd31
compiler: Debian clang version 11.0.1-2
patch: https://syzkaller.appspot.com/x/patch.diff?x=146f903c300000

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