rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=8ff4/1/0x4000000000000000 softirq=19093/19098 fqs=4958
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   735439          1            0
rcu: 	cputime:    37857      14631           71   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=11417 q=3204 ncpus=2)
CPU: 0 UID: 0 PID: 6773 Comm: syz.1.260 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:lock_release+0x2b5/0x3e0
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 0b 4d 03 11 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90000006970 EFLAGS: 00000206
RAX: 545daf2ccf715300 RBX: 0000000000000202 RCX: 545daf2ccf715300
RDX: 0000000000000002 RSI: ffffffff8dba9b9a RDI: ffffffff8be33e80
RBP: ffff888021e2c4c0 R08: ffffc90003edfcd0 R09: 0000000000000000
R10: ffffc90000006af8 R11: fffff52000000d61 R12: 0000000000000002
R13: 0000000000000002 R14: ffffffff8e13a120 R15: ffff888021e2b980
FS:  00007fbb149f66c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000002 CR3: 000000002659a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 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
 ieee802_11_parse_elems_full+0x152/0x2ab0
 ieee80211_inform_bss+0x10c/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:__schedule+0x1b3/0x4cc0
Code: f6 48 8b 1b 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 f4 17 a8 f6 48 81 3b 9d 6e ac 57 <0f> 85 b7 18 00 00 45 85 ed 7f 54 49 8d 5e 18 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc90003edfac0 EFLAGS: 00000246
RAX: 1ffff920007db000 RBX: ffffc90003ed8000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffffff8be33e60 RDI: ffffffff8be33e20
RBP: ffffc90003edfcd0 R08: ffffffff8fa3ab37 R09: 1ffffffff1f47566
R10: dffffc0000000000 R11: fffffbfff1f47567 R12: ffff8880b8613000
R13: 0000000000000001 R14: ffff888021e2b980 R15: 1ffff11009607551
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__put_user_4+0xf/0x20
Code: 01 31 c9 0f 1f 00 e9 50 45 03 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 cb 48 c1 fb 3f 48 09 d9 0f 1f 00 89 01 <31> c9 0f 1f 00 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003edfe50 EFLAGS: 00000206
RAX: 000000000000000b RBX: 0000000000000000 RCX: 0000200000000000
RDX: 0000000000000000 RSI: ffffffff8dba9b9a RDI: ffffffff8be33e80
RBP: 000000000000000b R08: 0000000000000000 R09: ffffffff820bc870
R10: dffffc0000000000 R11: ffffed1003f39f99 R12: 0000000000000800
R13: 0000200000000000 R14: 0000000000000021 R15: 0000000000000800
 __sys_socketpair+0xb7/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbb13b8eba9
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:00007fbb149f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fbb13dd6180 RCX: 00007fbb13b8eba9
RDX: 0000000000000006 RSI: 0000000000000800 RDI: 0000000000000021
RBP: 00007fbb13c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbb13dd6218 R14: 00007fbb13dd6180 R15: 00007fffcdc03f78
 </TASK>
sched: DL replenish lagged too much
