From: syzbot <syzbot+eb6201248f684e99b9f8@syzkaller.appspotmail.com>
To: chao@kernel.org, jaegeuk@kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: [syzbot] [f2fs?] WARNING: lock held when returning to user space in f2fs_write_single_data_page
Date: Mon, 01 May 2023 10:05:05 -0700 [thread overview]
Message-ID: <0000000000000534da05faa4d3d4@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 58390c8ce1bd Merge tag 'iommu-updates-v6.4' of git://git.k..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=136e6ef8280000
kernel config: https://syzkaller.appspot.com/x/.config?x=5eadbf0d3c2ece89
dashboard link: https://syzkaller.appspot.com/bug?extid=eb6201248f684e99b9f8
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16bbb03c280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=140d36f8280000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/60130779f509/disk-58390c8c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/d7f0cdd29b71/vmlinux-58390c8c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/de415ad52ae4/bzImage-58390c8c.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/dc89d01cd6e9/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+eb6201248f684e99b9f8@syzkaller.appspotmail.com
syz-executor768: attempt to access beyond end of device
loop0: rw=2049, sector=77824, nr_sectors = 2048 limit=63271
syz-executor768: attempt to access beyond end of device
loop0: rw=2049, sector=79872, nr_sectors = 2048 limit=63271
================================================
WARNING: lock held when returning to user space!
6.3.0-syzkaller-12049-g58390c8ce1bd #0 Not tainted
------------------------------------------------
syz-executor768/4998 is leaving the kernel with locks still held!
1 lock held by syz-executor768/4998:
#0: ffff88807e800448 (&sbi->node_write){++++}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2087 [inline]
#0: ffff88807e800448 (&sbi->node_write){++++}-{3:3}, at: f2fs_write_single_data_page+0xa10/0x1d50 fs/f2fs/data.c:2842
---
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next reply other threads:[~2023-05-01 17:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 17:05 syzbot [this message]
2023-09-15 5:49 ` [syzbot] [f2fs?] WARNING: lock held when returning to user space in f2fs_write_single_data_page syzbot
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