[syzbot] WARNING: locking bug in evict

syzbot
2022-10-10T11:53:38Z

Hello,

syzbot found the following issue on:

HEAD commit: bbed346d5a96 Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=14109b24880000
kernel config: https://syzkaller.appspot.com/x/.config?x=3a4a45d2d827c1e
dashboard link: https://syzkaller.appspot.com/bug?extid=0cebf0474baedad38dc5
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e8e91bc79312/disk-bbed346d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c1cb3fb3b77e/vmlinux-bbed346d.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0cebf0474baedad38dc5@syzkaller.appspotmail.com

loop5: detected capacity change from 0 to 4096
ntfs3: loop5: Different NTFS' sector size (1024) and media sector size (512)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3553 at kernel/locking/lockdep.c:466 lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
WARNING: CPU: 1 PID: 3553 at kernel/locking/lockdep.c:466 lock_acquire+0x1cc/0x1f8 kernel/locking/lockdep.c:5668
Modules linked in:
CPU: 1 PID: 3553 Comm: syz-executor.5 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
pc : lock_acquire+0x1cc/0x1f8 kernel/locking/lockdep.c:5668
lr : lockdep_recursion_finish kernel/locking/lockdep.c:466 [inline]
lr : lock_acquire+0x10c/0x1f8 kernel/locking/lockdep.c:5668
sp : ffff80001398b9f0
x29: ffff80001398ba30 x28: 0000000000000000 x27: 0000000000000000
x26: ffff80000d260cbf x25: 0000000000000000 x24: 0000000000000001
x23: 0000000000000000 x22: ffff0000fee439d8 x21: ffff8000085ed654
x20: 0000000000000000 x19: 0000000000000000 x18: 00000000000003b7
x17: ffff80000bffd6bc x16: ffff80000db49158 x15: ffff0000c5d1cf80
x14: 0000000000000008 x13: 00000000ffffffff x12: 0000000000040000
x11: 000000000002557f x10: ffff800012a4d000 x9 : 00000000000000ff
x8 : ffff8001f1d7d000 x7 : ffff8000085ed654 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000008 x1 : ffff80000cb431b1 x0 : ffff80000ce4fec5
Call trace:
lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
lock_acquire+0x1cc/0x1f8 kernel/locking/lockdep.c:5668
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
inode_sb_list_del fs/inode.c:503 [inline]
evict+0x90/0x334 fs/inode.c:654
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
ntfs_fill_super+0x1254/0x14a4 fs/ntfs3/super.c:1190
get_tree_bdev+0x1e8/0x2a0 fs/super.c:1323
ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1358
vfs_get_tree+0x40/0x140 fs/super.c:1530
do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
path_mount+0x358/0x914 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 4746
hardirqs last enabled at (4745): [<ffff800008161dac>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last enabled at (4745): [<ffff800008161dac>] finish_lock_switch+0x94/0xe8 kernel/sched/core.c:4942
hardirqs last disabled at (4746): [<ffff80000bfb5fbc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404
softirqs last enabled at (3572): [<ffff80000801c33c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (3570): [<ffff80000801c308>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
ntfs3: loop5: Mark volume as dirty due to NTFS errors

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