From: syzbot <syzbot+3f7b29af1baa9d0a55be@syzkaller.appspotmail.com>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
miklos@szeredi.hu, syzkaller-bugs@googlegroups.com
Subject: WARNING: lock held when returning to user space in fuse_lock_inode
Date: Thu, 12 Jul 2018 08:49:02 -0700 [thread overview]
Message-ID: <0000000000006a10de0570cf4d66@google.com> (raw)
Hello,
syzbot found the following crash on:
HEAD commit: c25c74b7476e Merge tag 'trace-v4.18-rc3-2' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=177bcec2400000
kernel config: https://syzkaller.appspot.com/x/.config?x=25856fac4e580aa7
dashboard link: https://syzkaller.appspot.com/bug?extid=3f7b29af1baa9d0a55be
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=13aa7678400000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17492678400000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+3f7b29af1baa9d0a55be@syzkaller.appspotmail.com
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
================================================
WARNING: lock held when returning to user space!
4.18.0-rc4+ #143 Not tainted
------------------------------------------------
syz-executor012/4539 is leaving the kernel with locks still held!
1 lock held by syz-executor012/4539:
#0: (____ptrval____) (&fi->mutex){+.+.}, at: fuse_lock_inode+0xaf/0xe0
fs/fuse/inode.c:363
---
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next reply other threads:[~2018-07-12 15:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-12 15:49 syzbot [this message]
2018-07-17 11:14 ` WARNING: lock held when returning to user space in fuse_lock_inode Miklos Szeredi
2018-07-17 11:36 ` Dmitry Vyukov
2018-07-17 12:46 ` Miklos Szeredi
2018-07-17 17:12 ` Alistair Strachan
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