rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (4424 ticks this GP) idle=2c04/1/0x4000000000000000 softirq=16756/16756 fqs=4825
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   996999          3            0
rcu: 	cputime:    29419      14799           34   ==> 44230(ms)
rcu: 	(t=10501 jiffies g=9745 q=3563 ncpus=2)
CPU: 1 UID: 0 PID: 6271 Comm: syz.0.112 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:in_gate_area_no_mm+0x0/0x60
Code: fb 41 0f 92 c6 44 89 f0 5b 41 5e 41 5f 5d c3 cc cc cc cc cc 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 53 48 89 fb e8 62 fb 8b 00 8b 2d 5c da 89 0c bf 02
RSP: 0018:ffffc900001dfc70 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007efd1db8eba9 RCX: a4680c249fe69501
RDX: 0000000000000004 RSI: ffffffff8dba9832 RDI: 00007efd1db8eba9
RBP: 0000000000000001 R08: 0000000000000022 R09: ffffffff8172d195
R10: ffffc900001dfd18 R11: ffffffff81ac4d00 R12: ffff888021385640
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200003bfa2
FS:  00007efd1e9816c0(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011e674000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kernel_text_address+0x2d/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 ieee80211_inform_bss+0xbd9/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b30
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x201c/0x2a90
 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:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 ab 8a 14 f6 e8 16 e7 4b f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc9000438fac0 EFLAGS: 00000282
RAX: a4680c249fe69500 RBX: 0000000000000000 RCX: a4680c249fe69500
RDX: 0000000000000006 RSI: ffffffff8d9ba160 RDI: 0000000000000001
RBP: ffffc9000438fb60 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000871f58
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__local_bh_enable_ip+0x135/0x1c0
Code: 8b e8 6f 78 f5 09 65 66 8b 05 1f d6 1b 11 66 85 c0 75 5a bf 01 00 00 00 e8 78 15 0b 00 e8 33 70 42 00 fb 65 8b 05 fb d5 1b 11 <85> c0 75 05 e8 d2 cc ae ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc9000438fc20 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 0000000000000201 RCX: a4680c249fe69500
RDX: 0000000000000006 RSI: ffffffff8d9ba160 RDI: ffffffff8be33e00
RBP: ffffc9000438fcb0 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: ffffffff8aa8df52
R13: ffff888121879000 R14: dffffc0000000000 R15: 1ffff92000871f84
 kcm_release+0x82/0x5b0
 sock_close+0xc3/0x240
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efd1db8eba9
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:00007efd1e981038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffff2 RBX: 00007efd1ddd5fa0 RCX: 00007efd1db8eba9
RDX: 0000000000000000 RSI: 00000000000089e1 RDI: 0000000000000009
RBP: 00007efd1dc11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efd1ddd6038 R14: 00007efd1ddd5fa0 R15: 00007ffcbca48108
 </TASK>
sched: DL replenish lagged too much
