linux-kernel - [syzbot] [f2fs?] WARNING: lock held when returning

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Message-ID: <000000000000ac12e3061fd623b8@google.com>
Date: Fri, 16 Aug 2024 17:27:22 -0700
From: syzbot <syzbot+16c06d2c27b585e352f8@...kaller.appspotmail.com>
To: chao@...nel.org, jaegeuk@...nel.org, 
	linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [f2fs?] WARNING: lock held when returning

Hello,

syzbot found the following issue on:

HEAD commit:    9e6869691724 Add linux-next specific files for 20240812
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=177f4b7d980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=61ba6f3b22ee5467
dashboard link: https://syzkaller.appspot.com/bug?extid=16c06d2c27b585e352f8
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14e46af5980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=158ea2ed980000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/f1b086192f50/disk-9e686969.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/b457920fb52e/vmlinux-9e686969.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e63ba9cce98a/bzImage-9e686969.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/b1fc2a52ac10/mount_0.gz

The issue was bisected to:

commit 7566a155c666dd23b413a002a50cd9ae7b95f053
Author: Chao Yu <chao@...nel.org>
Date:   Tue Jun 25 03:13:49 2024 +0000

    f2fs: atomic: fix to not allow GC to pollute atomic_file

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1416b183980000
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1616b183980000
console output: https://syzkaller.appspot.com/x/log.txt?x=1216b183980000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+16c06d2c27b585e352f8@...kaller.appspotmail.com
Fixes: 7566a155c666 ("f2fs: atomic: fix to not allow GC to pollute atomic_file")

F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
syz-executor161: attempt to access beyond end of device
loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
================================================
WARNING: lock held when returning


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.

syzbot will keep track of this issue. See:
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For information about bisection process see: https://goo.gl/tpsmEJ#bisection

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

If you want to overwrite report's subsystems, reply with:
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If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup