rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10497 ticks this GP) idle=b62c/1/0x4000000000000000 softirq=17178/17179 fqs=5248
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1030524          0            0
rcu: 	cputime:    23771      28718           84   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=8925 q=3529 ncpus=2)
CPU: 0 UID: 0 PID: 6670 Comm: syz.1.339 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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:kfree+0x103/0x440
Code: 0f 85 61 01 00 00 f3 0f 1e fa 0f 1f 44 00 00 45 31 ed 41 8b 6c 24 08 41 8b 74 24 1c 48 89 df e8 63 0d 86 ff 41 f6 44 24 09 08 <75> 0d 41 8b 74 24 1c 48 89 df e8 7e 4d af 02 48 8b 05 67 a7 89 0d
RSP: 0018:ffffc90000007b50 EFLAGS: 00000246
RAX: 7058ceb0a1758000 RBX: ffff88801fd27dc0 RCX: ffffffff8e13f100
RDX: 0000000000000100 RSI: ffff88801fd27de0 RDI: ffff88801fd27dc0
RBP: 0000000000212008 R08: 0000000000000000 R09: ffffffff81a8b724
R10: dffffc0000000000 R11: ffffffff82190ec0 R12: ffff88801a441780
R13: 0000000000000000 R14: ffffffff82190f20 R15: ffffea00007f49c0
FS:  00007f65fa71d6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f65f77f5fc8 CR3: 0000000029bf6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 slab_free_after_rcu_debug+0x60/0x2a0
 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:__schedule+0x1a7/0x4d00
Code: 74 08 48 89 df e8 69 e0 b3 f6 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 50 e0 b3 f6 48 81 3b 9d 6e ac 57 <0f> 85 26 18 00 00 83 7c 24 70 00 7f 42 49 8d 5e 18 48 89 d8 48 c1
RSP: 0018:ffffc90002bdf5a0 EFLAGS: 00000246
RAX: 1ffff9200057b000 RBX: ffffc90002bd8000 RCX: 7058ceb0a1758000
RDX: 0000000000000000 RSI: ffffffff8be29f60 RDI: ffffffff8be29f20
RBP: ffffc90002bdf7b0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88804b03aac8
R13: dffffc0000000000 R14: ffff88801fbc8000 R15: ffff8880b861f000
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 debug_check_no_obj_freed+0x451/0x470
 __free_frozen_pages+0x509/0xe70
 __put_partials+0x161/0x1c0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2f7/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 security_file_alloc+0x34/0x330
 init_file+0x93/0x2f0
 alloc_empty_file+0x6e/0x1d0
 alloc_file_pseudo+0x13d/0x210
 sock_alloc_file+0xb8/0x2e0
 __sys_socketpair+0x387/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f65f998e9a9
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:00007f65fa71d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f65f9bb5fa0 RCX: 00007f65f998e9a9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001
RBP: 00007f65f9a10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000029c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f65f9bb5fa0 R15: 00007ffebad87bd8
 </TASK>
sched: DL replenish lagged too much
