BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 6157, name: syz.2.42
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
2 locks held by syz.2.42/6157:
 #0: ffff88805e96f2d8 (&sb->s_type->i_lock_key#38){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:44 [inline]
 #0: ffff88805e96f2d8 (&sb->s_type->i_lock_key#38){+.+.}-{3:3}, at: f2fs_drop_inode+0x67e/0x950 fs/f2fs/super.c:1822
 #1: ffffffff8d7aa500 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8d7aa500 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #1: ffffffff8d7aa500 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
 #1: ffffffff8d7aa500 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1c1/0x3e0 kernel/locking/spinlock_rt.c:57
CPU: 1 UID: 0 PID: 6157 Comm: syz.2.42 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 __might_resched+0x44b/0x5d0 kernel/sched/core.c:8925
 iput+0x2b/0xc50 fs/inode.c:1928
 f2fs_drop_inode+0x686/0x950 fs/f2fs/super.c:1823
 iput_final fs/inode.c:1884 [inline]
 iput+0x6dc/0xc50 fs/inode.c:1966
 __dentry_kill+0x209/0x660 fs/dcache.c:669
 dput+0x19f/0x2b0 fs/dcache.c:911
 __fput+0x69d/0xa80 fs/file_table.c:476
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 get_signal+0x11c4/0x1310 kernel/signal.c:2807
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9ea3f6eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9ea21ce038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: 000000000018f000 RBX: 00007f9ea41c5fa0 RCX: 00007f9ea3f6eec9
RDX: 00000000200000c1 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f9ea3ff1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000009000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9ea41c6038 R14: 00007f9ea41c5fa0 R15: 00007fff8da81758
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6157 at fs/inode.c:1933 iput+0x38c/0xc50 fs/inode.c:1933
Modules linked in:
CPU: 1 UID: 0 PID: 6157 Comm: syz.2.42 Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:iput+0x38c/0xc50 fs/inode.c:1933
Code: 80 3d ec e5 ad 0c 01 0f 85 b2 00 00 00 e8 3c 9b 8a ff 4c 89 f7 be 10 00 00 00 e8 ff 87 06 00 e9 2c fd ff ff e8 25 9b 8a ff 90 <0f> 0b 90 e9 70 fd ff ff e8 17 9b 8a ff 90 0f 0b 90 e9 d7 fe ff ff
RSP: 0018:ffffc9000643f970 EFLAGS: 00010246
RAX: ffffffff8233b20b RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000e219000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffff88805e96f310 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2397209 R12: ffff88805e96f430
R13: dffffc0000000000 R14: ffff88805e96f200 R15: 1ffffffff1deeeac
FS:  00007f9ea21ce6c0(0000) GS:ffff888126ccd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f954d770000 CR3: 0000000028682000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 f2fs_drop_inode+0x686/0x950 fs/f2fs/super.c:1823
 iput_final fs/inode.c:1884 [inline]
 iput+0x6dc/0xc50 fs/inode.c:1966
 __dentry_kill+0x209/0x660 fs/dcache.c:669
 dput+0x19f/0x2b0 fs/dcache.c:911
 __fput+0x69d/0xa80 fs/file_table.c:476
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 get_signal+0x11c4/0x1310 kernel/signal.c:2807
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9ea3f6eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9ea21ce038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: 000000000018f000 RBX: 00007f9ea41c5fa0 RCX: 00007f9ea3f6eec9
RDX: 00000000200000c1 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f9ea3ff1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000009000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9ea41c6038 R14: 00007f9ea41c5fa0 R15: 00007fff8da81758
 </TASK>