rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=d8d4/1/0x4000000000000000 softirq=28882/28883 fqs=4701
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   944558          0            0
rcu: 	cputime:    26269      26210          101   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=20145 q=4464 ncpus=2)
CPU: 1 UID: 0 PID: 8090 Comm: syz.0.549 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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 5b 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 cc 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e09c0 EFLAGS: 00000206
RAX: 4c242a22f8ea2900 RBX: 0000000000000a02 RCX: 4c242a22f8ea2900
RDX: 0000000000000002 RSI: ffffffff8d998874 RDI: 0000000000000001
RBP: ffffc900001e0a58 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff8881073fd308 R14: ffffffff99cf1d28 R15: 1ffff9200003c138
FS:  00007f2a74fdb6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000018c0 CR3: 000000012d79c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 debug_check_no_obj_freed+0x451/0x470
 kmem_cache_free+0x113/0x400
 __put_task_struct+0x2c0/0x460
 delayed_put_task_struct+0x11f/0x2f0
 rcu_core+0xca8/0x1710
 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:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 1b 2d 21 f6 e8 56 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900064e7c40 EFLAGS: 00000286
RAX: 4c242a22f8ea2900 RBX: 0000000000000000 RCX: 4c242a22f8ea2900
RDX: 0000000000000000 RSI: ffffffff8d998874 RDI: 0000000000000001
RBP: ffffc900064e7ce0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000c9cf88
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:netlink_create+0x404/0x590
Code: 01 00 00 49 81 c6 d0 03 00 00 4c 89 f0 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 80 3c 20 00 74 08 4c 89 f7 e8 9c 1b 8e f8 <4d> 8b 3e 44 8b 35 9a e2 c2 05 bf 41 00 00 00 44 89 f6 e8 f5 fb 2a
RSP: 0018:ffffc900064e7da8 EFLAGS: 00000246
RAX: 1ffff1102516748a RBX: ffff88802baa6600 RCX: 0000000000000000
RDX: ffff888107a65640 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10060f2cd7 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888128b3a450 R15: 0000000000000000
 __sock_create+0x4b3/0x9f0
 __sys_socket+0xd7/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2a7418e9a9
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:00007f2a74fdb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f2a743b5fa0 RCX: 00007f2a7418e9a9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007f2a74210d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2a743b5fa0 R15: 00007ffcb9787858
 </TASK>
