rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10473 ticks this GP) idle=a504/1/0x4000000000000000 softirq=46966/47159 fqs=5229
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1280370        537            0
rcu: 	cputime:    31195      21291           40   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=37793 q=1549 ncpus=2)
CPU: 0 UID: 0 PID: 11092 Comm: syz.8.1577 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:memset_orig+0x7/0xb0
Code: 89 d1 f3 aa 4c 89 c8 e9 57 bf 02 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 49 89 fa 40 0f b6 ce <48> b8 01 01 01 01 01 01 01 01 48 0f af c1 41 89 f9 41 83 e1 07 75
RSP: 0018:ffffc90000007410 EFLAGS: 00000202
RAX: 1ffff92000000e01 RBX: ffffc90000007520 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000007538
RBP: dffffc0000000000 R08: ffffc90000007547 R09: 1ffff92000000ea8
R10: ffffc90000007538 R11: fffff52000000ea9 R12: ffffc90000007b68
R13: ffffc90000007538 R14: ffffc900000074e8 R15: ffffc90000007530
FS:  00007f746706f6c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555634a15c8 CR3: 000000003270e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xc98/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 __netdev_alloc_skb+0x108/0x970
 __ieee80211_beacon_get+0xc06/0x1880
 ieee80211_beacon_get_tim+0xb4/0x2b0
 mac80211_hwsim_beacon_tx+0x3ce/0x860
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x1c0
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 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:futex_hash_free+0x3a/0xb0
Code: 00 fc ff df e8 c7 99 0c 00 48 8d bb 10 03 00 00 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8 7d 0c 70 00 48 8b bb 10 03 00 00 <e8> 61 c9 50 00 48 8d bb e8 02 00 00 48 89 f8 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc90002d1f6a8 EFLAGS: 00000246
RAX: 1ffff110040eb46a RBX: ffff88802075a040 RCX: 0000000000080000
RDX: ffffc9002127a000 RSI: 000000000000188d RDI: 0000607e5c00b3e0
RBP: 000000000000023e R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 1ffff110040eb421
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88802075a608
 __mmdrop+0x323/0x580
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 __put_partials+0x65/0x1a0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2d5/0x3c0
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 __kmalloc_noprof+0x224/0x4f0
 sk_prot_alloc+0xe7/0x220
 sk_alloc+0x3a/0x370
 mctp_pf_create+0xce/0x2d0
 __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: 0033:0x7f746618ebe9
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:00007f746706f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f74663c5fa0 RCX: 00007f746618ebe9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000002d
RBP: 00007f7466211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f74663c6038 R14: 00007f74663c5fa0 R15: 00007ffef3e17448
 </TASK>
