rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10427 ticks this GP) idle=fd94/1/0x4000000000000000 softirq=43449/43450 fqs=5236
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   898131          0            0
rcu: 	cputime:    37383      15106           57   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=35821 q=1491 ncpus=2)
CPU: 0 UID: 0 PID: 11520 Comm: syz.3.1612 Not tainted syzkaller #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_read_unlock+0x93/0xa0
Code: c7 c7 20 6c 90 8b be 66 03 00 00 48 c7 c2 c0 6c 90 8b e8 f0 79 d2 ff 48 8d 35 00 00 00 00 48 c7 c7 20 a1 13 8e e8 cd 5f d2 ff <5b> e9 57 0b dc ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000006dd0 EFLAGS: 00000282
RAX: 9ef7f26a68aeb900 RBX: 0000000000000001 RCX: 9ef7f26a68aeb900
RDX: 0000000000000008 RSI: ffffffff8dba9832 RDI: ffffffff8be33e00
RBP: ffffc90000006ed8 R08: 0000000000000000 R09: ffffffff81cb1857
R10: dffffc0000000000 R11: fffff91fe28cbd4c R12: 0000000000000001
R13: 1ffff92000000dc8 R14: 0000000000000000 R15: ffff8880224dec28
FS:  00007f4e0621a6c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d26af2fc8 CR3: 0000000022bb2000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 trace_call_bpf+0x7dd/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x27a/0x4f0
 sctp_bind_addrs_to_raw+0xff/0x360
 sctp_make_init+0x150/0xd30
 sctp_sf_t1_init_timer_expire+0x1e9/0x530
 sctp_do_sm+0x1e7/0x5a20
 sctp_generate_timeout_event+0x22e/0x360
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 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:rcu_read_unlock_special+0x87/0x4b0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 d2 a2 f9 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90006a7f780 EFLAGS: 00000206
RAX: 9ef7f26a68aeb900 RBX: 1ffff92000d4fef4 RCX: 9ef7f26a68aeb900
RDX: 0000000000000006 RSI: ffffffff8d9ba160 RDI: ffffffff8be33e00
RBP: ffffc90006a7f860 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: ffffffff8e13f400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x84/0xe0
 trace_call_bpf+0x5ae/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 kmem_cache_alloc_noprof+0x44/0x3c0
 alloc_empty_file+0x55/0x1d0
 alloc_file_pseudo+0x13d/0x210
 anon_inode_getfile+0xc5/0x1a0
 __se_sys_perf_event_open+0xf20/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e0538eba9
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:00007f4e0621a038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f4e055d5fa0 RCX: 00007f4e0538eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007f4e05411e19 R08: 000000000000000a R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4e055d6038 R14: 00007f4e055d5fa0 R15: 00007ffcaee459c8
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 101801987205 wd_nsec: 101801989477
