INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 5226 Comm: syz.7.55 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 assign_lock_key+0x224/0x258 kernel/locking/lockdep.c:974
 register_lock_class+0x1ac/0x694 kernel/locking/lockdep.c:1287
 __lock_acquire+0x150/0x6544 kernel/locking/lockdep.c:4928
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
 ntfs_set_size+0x130/0x200 fs/ntfs3/inode.c:845
 ntfs_extend+0x130/0x444 fs/ntfs3/file.c:353
 ntfs3_setattr+0x248/0x924 fs/ntfs3/file.c:712
 notify_change+0xb0c/0xdcc fs/attr.c:499
 do_truncate+0x178/0x1f0 fs/open.c:65
 vfs_truncate+0x23c/0x2b0 fs/open.c:111
 do_sys_truncate+0xe8/0x1b0 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+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
ntfs3: loop7: ino=19, "file1" attr_set_size
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(sem->magic != sem): count = 0x1, magic = 0x0, owner = 0xffff0000d6055340, curr 0xffff0000d6055340, list not empty
WARNING: CPU: 1 PID: 5226 at kernel/locking/rwsem.c:1366 __up_write kernel/locking/rwsem.c:1366 [inline]
WARNING: CPU: 1 PID: 5226 at kernel/locking/rwsem.c:1366 up_write+0x3b8/0x5c0 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 5226 Comm: syz.7.55 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __up_write kernel/locking/rwsem.c:1366 [inline]
pc : up_write+0x3b8/0x5c0 kernel/locking/rwsem.c:1626
lr : __up_write kernel/locking/rwsem.c:1366 [inline]
lr : up_write+0x3b8/0x5c0 kernel/locking/rwsem.c:1626
sp : ffff8000213a7830
x29: ffff8000213a7840 x28: 1fffe0001f79aa78 x27: dfff800000000000
x26: dfff800000000000 x25: 0000000000000001 x24: ffff0000d6055340
x23: ffff0000d6055340 x22: 0000000000000000 x21: ffff0000fbcd52b8
x20: ffff0000fbcd52c8 x19: ffff0000fbcd5260 x18: ffff800011a5bd40
x17: 1fffe00033eebd7e x16: ffff800008042d90 x15: 0000000040000000
x14: 0000000000000002 x13: 0000000000ff0100 x12: 0000000000ff0100
x11: ff0080000804801c x10: 0000000040000002 x9 : a26387e474897d00
x8 : a26387e474897d00 x7 : 0000000000000004 x6 : ffff8000082532dc
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff8000213a73c0 x1 : 0000000000000000 x0 : ffff800008253370
Call trace:
 __up_write kernel/locking/rwsem.c:1366 [inline]
 up_write+0x3b8/0x5c0 kernel/locking/rwsem.c:1626
 ntfs_set_size+0x164/0x200 fs/ntfs3/inode.c:850
 ntfs_extend+0x130/0x444 fs/ntfs3/file.c:353
 ntfs3_setattr+0x248/0x924 fs/ntfs3/file.c:712
 notify_change+0xb0c/0xdcc fs/attr.c:499
 do_truncate+0x178/0x1f0 fs/open.c:65
 vfs_truncate+0x23c/0x2b0 fs/open.c:111
 do_sys_truncate+0xe8/0x1b0 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+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 107627
hardirqs last  enabled at (107627): [<ffff800008253370>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (107627): [<ffff800008253370>] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5003
hardirqs last disabled at (107626): [<ffff8000119d0a7c>] __schedule+0x298/0x1b18 kernel/sched/core.c:6459
softirqs last  enabled at (107588): [<ffff8000081aa3e0>] softirq_handle_end kernel/softirq.c:439 [inline]
softirqs last  enabled at (107588): [<ffff8000081aa3e0>] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624
softirqs last disabled at (107487): [<ffff800008020164>] __do_softirq+0x14/0x20 kernel/softirq.c:630
---[ end trace 0000000000000000 ]---