rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=eaa4/1/0x4000000000000000 softirq=78791/78793 fqs=4206
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1028851          0            0
rcu: 	cputime:    29387      23092           51   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=64641 q=4156 ncpus=2)
CPU: 0 UID: 0 PID: 18609 Comm: syz.3.3692 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:cfg80211_inform_single_bss_data+0xc03/0x1b70
Code: 00 48 89 c3 49 83 c7 30 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 79 46 35 f7 48 8d 43 68 48 89 44 24 28 4d 8b 3f <4c> 89 74 24 10 48 89 5c 24 48 0f 1f 44 00 00 e8 b9 fa ca f6 65 8b
RSP: 0018:ffffc900000072e0 EFLAGS: 00000246
RAX: ffff888111412c68 RBX: ffff888111412c00 RCX: ffff88816f021d40
RDX: 0000000000000100 RSI: 0000000000000001 RDI: ffff888111412c40
RBP: ffffc900000074d0 R08: 0000000000000000 R09: 1ffff11022282598
R10: dffffc0000000000 R11: ffffed1022282599 R12: dffffc0000000000
R13: ffffc90000007810 R14: ffff888020cd0150 R15: ffffc90000007a00
FS:  00007f10400676c0(0000) GS:ffff88818de63000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010ee74000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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 63 c5 e4 f5 e8 1e 60 1e f6 fb bf 01 00 00 00 <e8> c3 a6 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 f4 61 1e f6 bf 01
RSP: 0018:ffffc9000496f610 EFLAGS: 00000206
RAX: 00000000000004d7 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8def4b7d RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff90118bb7 R09: 1ffffffff2023176
R10: dffffc0000000000 R11: fffffbfff2023177 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0x1d5/0x23c0
Code: 48 83 f3 01 48 c7 c2 c0 a4 c9 8b 49 29 dc 0f 84 b2 02 00 00 49 81 fc 00 00 00 81 0f 92 c0 49 81 fc b8 ba b1 8b 0f 93 c1 08 c1 <0f> 85 05 01 00 00 48 c7 c0 00 00 00 81 4d 89 e7 49 29 c7 49 c1 ef
RSP: 0018:ffffc9000496f738 EFLAGS: 00000246
RAX: 1ffff9200092df00 RBX: 0000000000000001 RCX: 0000000080000000
RDX: ffffffff8bc9a4c0 RSI: ffffffff8c27b3e0 RDI: ffffffff8c27b3a0
RBP: dffffc0000000000 R08: ffffffff81767de5 R09: ffffffff8e75e3e0
R10: ffffc9000496f858 R11: ffffffff81b0bfa0 R12: ffffffff822fb05d
R13: ffffc9000496f858 R14: ffffc9000496f808 R15: ffffc9000496f850
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5c/0x80
 kfree+0x1c1/0x630
 btf_new_fd+0x553/0xd10
 __sys_bpf+0x4e5/0x950
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f103f19c799
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:00007f1040067028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f103f415fa0 RCX: 00007f103f19c799
RDX: 0000000000000028 RSI: 0000200000000300 RDI: 0000000000000012
RBP: 00007f103f232c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f103f416038 R14: 00007f103f415fa0 R15: 00007ffe78edef78
 </TASK>
