rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=ee94/1/0x4000000000000000 softirq=99046/99046 fqs=4776
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1228991          0            0
rcu: 	cputime:    34954      17525           38   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=90449 q=3036 ncpus=2)
CPU: 0 UID: 0 PID: 21863 Comm: syz.0.4465 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:__read_once_word_nocheck+0x3/0x10
Code: 00 48 ba 00 00 00 00 00 fc ff df e9 88 fc ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 <e9> 98 0a 3b 0a cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000006a90 EFLAGS: 00000246
RAX: ffffffff810014ca RBX: ffffc90006d8f700 RCX: 0000000000000001
RDX: 0000000000000002 RSI: ffffc90006d90000 RDI: ffffc90006d8f700
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8e75e5e0
R10: ffffc90000006bb8 R11: ffffffff81b0c390 R12: ffffc90006d90000
R13: 1ffff92000000d6f R14: ffffc90000006b68 R15: ffffc90006d88000
FS:  00007fcd937f66c0(0000) GS:ffff88818de5c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3211affc CR3: 000000016a610000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xe52/0x23c0
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x35c/0x760
 ieee802_11_parse_elems_full+0x159/0x2ab0
 ieee80211_inform_bss+0x161/0x1160
 cfg80211_inform_single_bss_data+0xd08/0x1b70
 cfg80211_inform_bss_data+0x266/0x3c40
 cfg80211_inform_bss_frame_data+0x3c7/0x760
 ieee80211_bss_info_update+0x794/0xa40
 ieee80211_scan_rx+0x552/0xa40
 ieee80211_rx_list+0x29e5/0x3710
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x2da/0x4b0
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 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+0x48/0xa0
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 53 bf 01 00 00 00 e8 e3 e7 e3 f5 e8 4e 86 1d f6 fb bf 01 00 00 00 <e8> c3 a6 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 24 88 1d f6 bf 01
RSP: 0018:ffffc90006d8f7b0 EFLAGS: 00000202
RAX: 00000000000019e3 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000006 RSI: ffffffff8def8ec0 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9011b3b7 R09: 1ffffffff2023676
R10: dffffc0000000000 R11: fffffbfff2023677 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memset_orig+0x42/0xb0
Code: 41 83 e1 07 75 74 48 89 d1 48 c1 e9 06 74 39 66 0f 1f 84 00 00 00 00 00 48 ff c9 48 89 07 48 89 47 08 48 89 47 10 48 89 47 18 <48> 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8
RSP: 0018:ffffc90006d8f8d8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000dc0 RCX: 0000000000000001
RDX: 0000000000000200 RSI: 0000000000000000 RDI: ffffc90006d8fa60
RBP: ffffc90006d8fb08 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc90006d8f8e0 R11: ffffed10226a0944 R12: ffff8881b2ed4000
R13: 0000000000000dc0 R14: ffff8881b2ed5000 R15: ffffc90006d8f8e0
 kasan_save_track+0x2f/0x80
 __kasan_kmalloc+0x93/0xb0
 __kvmalloc_node_noprof+0x528/0x8a0
 fanout_add+0x73d/0x12a0
 packet_setsockopt+0xc34/0x1510
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13d/0x1b0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcd9299c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcd937f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fcd92c15fa0 RCX: 00007fcd9299c799
RDX: 0000000000000012 RSI: 0000000000000107 RDI: 000000000000000a
RBP: 00007fcd92a32c99 R08: 0000000000000004 R09: 0000000000000000
R10: 00002000000008c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcd92c16038 R14: 00007fcd92c15fa0 R15: 00007ffc9595fd18
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 93012192982 wd_nsec: 93012199861
