rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=d3ec/1/0x4000000000000000 softirq=14667/14668 fqs=4750
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   952186          0            0
rcu: 	cputime:    37339      15132           55   ==> 52480(ms)
rcu: 	(t=10501 jiffies g=8577 q=3246 ncpus=2)
CPU: 0 UID: 0 PID: 6554 Comm: syz.0.200 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:ieee802_11_parse_elems_full+0x1a0/0x2ab0
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 94 24 98 00 00 00 80 3c 02 00 48 89 4c 24 08 74 0d 48 89 df e8 f5 65 5b f7 48 8b 4c 24 08 <48> 89 5c 24 68 4c 89 ac 24 e0 00 00 00 48 8b 44 24 28 4c 89 b0 30
RSP: 0018:ffffc90000006e80 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88811445a330 RCX: ffff88811445a000
RDX: 1ffff1102288b466 RSI: ffffffff8bbf0e40 RDI: ffffffff8bbf0e00
RBP: ffffc90000007090 R08: 0000000000000920 R09: 00000000ffffffff
R10: 0000000000000013 R11: ffffffffa0000810 R12: 1ffff92000000e26
R13: 1ffff92000000e00 R14: 0000000000000078 R15: 0000000000000028
FS:  00007fef2e4fb6c0(0000) GS:ffff88818eb38000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3001cffc CR3: 00000001bc136000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 ieee80211_inform_bss+0x10c/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x203/0x3b40
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x749/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x2192/0x2c10
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1f0
 tasklet_action_common+0x36c/0x580
 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:__local_bh_enable_ip+0x135/0x1c0
Code: 8b e8 5f 3a c2 09 65 66 8b 05 2f be e9 10 66 85 c0 75 5a bf 01 00 00 00 e8 08 32 0b 00 e8 93 03 43 00 fb 65 8b 05 0b be e9 10 <85> c0 75 05 e8 f2 75 ae ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc90007f7f660 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000201 RCX: 2d5fbd5b53ec7c00
RDX: 0000000000000000 RSI: ffffffff8d70f0cc RDI: ffffffff8bbf0e60
RBP: ffffc90007f7f6f0 R08: ffffffff8f7cee77 R09: 1ffffffff1ef9dce
R10: dffffc0000000000 R11: fffffbfff1ef9dcf R12: ffffffff8966c3ff
R13: 1ffff11020757aa7 R14: dffffc0000000000 R15: 1ffff92000fefecc
 netlink_insert+0x106f/0x1370
 netlink_autobind+0x22e/0x300
 netlink_sendmsg+0x523/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fef2d58f749
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:00007fef2e4fb038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fef2d7e5fa0 RCX: 00007fef2d58f749
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000008
RBP: 00007fef2d613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fef2d7e6038 R14: 00007fef2d7e5fa0 R15: 00007ffcb7e9ced8
 </TASK>
sched: DL replenish lagged too much
