------------[ cut here ]------------
WARNING: CPU: 0 PID: 6534 at kernel/rcu/tree_stall.h:1015 rcu_check_gp_start_stall+0x2e4/0x470
Modules linked in:
CPU: 0 UID: 0 PID: 6534 Comm: syz.0.193 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:rcu_check_gp_start_stall+0x2e4/0x470
Code: ff ff 48 c7 c7 00 84 af 99 be 04 00 00 00 e8 b3 8f 7b 00 4c 89 f7 b8 01 00 00 00 87 05 e5 c3 07 18 85 c0 0f 85 17 ff ff ff 90 <0f> 0b 90 48 81 ff 80 44 14 8e 74 47 48 c7 c0 30 1a a2 8f 48 c1 e8
RSP: 0018:ffffc90000007bb8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000a02 RCX: ffffffff81a7c00d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8e144480
RBP: ffffc90000007e30 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff335f080 R12: 0000000000002904
R13: 1ffff110096075fa R14: ffffffff8e144480 R15: dffffc0000000000
FS:  000055559315f500(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555d890000 CR3: 000000003b230000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_core+0x5f7/0x1710
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:native_queued_spin_lock_slowpath+0xaf/0x8e0
Code: 00 00 00 c7 44 24 60 00 00 00 00 0f 1f 44 00 00 4c 8d 74 24 60 49 89 df 49 c1 ef 03 41 bd 01 00 00 00 eb 06 89 44 24 60 f3 90 <48> 89 df be 04 00 00 00 e8 84 19 b2 f6 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90007997b20 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff88801dcbf7d8 RCX: ffffffff8b71360c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801dcbf7d8
RBP: ffffc90007997c18 R08: ffff88801dcbf7db R09: 1ffff11003b97efb
R10: dffffc0000000000 R11: ffffed1003b97efc R12: 1ffff92000f32f6c
R13: 0000000000000001 R14: ffffc90007997b80 R15: 1ffff11003b97efb
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 lock_for_kill+0xdc/0x210
 dput+0x18a/0x2b0
 __fput+0x68e/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efcb738e9a9
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:00007ffd19cc2d68 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007efcb75b7ba0 RCX: 00007efcb738e9a9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007efcb75b7ba0 R08: 0000000000000000 R09: 0000001619cc305f
R10: 000000000003fcec R11: 0000000000000246 R12: 00000000000140e4
R13: 00007ffd19cc2e60 R14: ffffffffffffffff R15: 00007ffd19cc2e80
 </TASK>
