ntfs3: loop3: ino=5, "/" directory corrupted
======================================================
WARNING: possible circular locking dependency detected
5.15.170-syzkaller #0 Not tainted
------------------------------------------------------
syz.3.559/7034 is trying to acquire lock:
ffff0000dca58fc0 (&ni->ni_lock){+.+.}-{3:3}, at: ntfs_set_state+0x1a4/0x584 fs/ntfs3/fsntfs.c:925
but task is already holding lock:
ffff0000dca5c360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff0000dca5c360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf8/0x1f8 fs/ntfs3/namei.c:82
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&ni->ni_lock/4){+.+.}-{3:3}:
__mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
mi_read+0x26c/0x4d8 fs/ntfs3/record.c:148
ntfs_read_mft fs/ntfs3/inode.c:69 [inline]
ntfs_iget5+0x358/0x2be0 fs/ntfs3/inode.c:525
ni_update_parent+0x6f0/0xac8 fs/ntfs3/frecord.c:3154
ni_write_inode+0x8a0/0xe38 fs/ntfs3/frecord.c:3252
ntfs3_write_inode+0x70/0x98 fs/ntfs3/inode.c:1037
write_inode fs/fs-writeback.c:1495 [inline]
__writeback_single_inode+0x584/0x13a4 fs/fs-writeback.c:1705
writeback_single_inode+0x1c0/0x79c fs/fs-writeback.c:1760
write_inode_now+0x240/0x2d0 fs/fs-writeback.c:2800
ntfs_extend+0x310/0x408 fs/ntfs3/file.c:455
ntfs3_setattr+0x240/0x974 fs/ntfs3/file.c:770
notify_change+0xa34/0xcf8 fs/attr.c:505
do_truncate+0x1c0/0x28c fs/open.c:65
vfs_truncate+0x2e0/0x388 fs/open.c:111
do_sys_truncate+0xec/0x1b4 fs/open.c:134
__do_sys_truncate fs/open.c:146 [inline]
__se_sys_truncate fs/open.c:144 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:144
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
-> #0 (&ni->ni_lock){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain kernel/locking/lockdep.c:3788 [inline]
__lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012
lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
__mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
ntfs_set_state+0x1a4/0x584 fs/ntfs3/fsntfs.c:925
indx_read+0x738/0xb3c
indx_find+0x404/0xa34 fs/ntfs3/index.c:1187
dir_search_u+0x180/0x324 fs/ntfs3/dir.c:254
ntfs_lookup+0x108/0x1f8 fs/ntfs3/namei.c:83
lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1563
filename_create+0x230/0x468 fs/namei.c:3836
do_mkdirat+0xac/0x610 fs/namei.c:4080
__do_sys_mkdirat fs/namei.c:4105 [inline]
__se_sys_mkdirat fs/namei.c:4103 [inline]
__arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ni->ni_lock/4);
lock(&ni->ni_lock);
lock(&ni->ni_lock/4);
lock(&ni->ni_lock);
*** DEADLOCK ***
3 locks held by syz.3.559/7034:
#0: ffff0000d89f2460 (sb_writers
#13){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377
#1: ffff0000dca5c600
(&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:824 [inline]
(&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3835
#2: ffff0000dca5c360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
#2: ffff0000dca5c360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf8/0x1f8 fs/ntfs3/namei.c:82
stack backtrace:
CPU: 1 PID: 7034 Comm: syz.3.559 Not tainted 5.15.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
dump_stack+0x1c/0x58 lib/dump_stack.c:113
print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011
check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain kernel/locking/lockdep.c:3788 [inline]
__lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012
lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
__mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
ntfs_set_state+0x1a4/0x584 fs/ntfs3/fsntfs.c:925
indx_read+0x738/0xb3c
indx_find+0x404/0xa34 fs/ntfs3/index.c:1187
dir_search_u+0x180/0x324 fs/ntfs3/dir.c:254
ntfs_lookup+0x108/0x1f8 fs/ntfs3/namei.c:83
lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1563
filename_create+0x230/0x468 fs/namei.c:3836
do_mkdirat+0xac/0x610 fs/namei.c:4080
__do_sys_mkdirat fs/namei.c:4105 [inline]
__se_sys_mkdirat fs/namei.c:4103 [inline]
__arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
ntfs3: loop3: Mark volume as dirty due to NTFS errors