rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10459 ticks this GP) idle=c6c4/1/0x4000000000000000 softirq=18009/18010 fqs=4090
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1180467          0            0
rcu: 	cputime:    32135      20353           40   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=11021 q=2306 ncpus=2)
CPU: 0 UID: 0 PID: 6730 Comm: syz.1.261 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:unwind_next_frame+0x130e/0x2390
Code: c1 e8 3f 48 01 c8 48 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 27 49 63 07 4c 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 49
RSP: 0018:ffffc90000006b98 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffffff8fb18560 RCX: dffffc0000000000
RDX: ffffffff8fb18504 RSI: ffffffff902a91c0 RDI: ffffffff8be332a0
RBP: ffffffff8fb18504 R08: 0000000000000018 R09: ffffffff8172c195
R10: ffffc90000006cb8 R11: ffffffff81ac3930 R12: ffffffff810014c9
R13: ffffffff8fb18504 R14: ffffc90000006c68 R15: ffffffff8fb18530
FS:  00007fa9a3de66c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdd183d068 CR3: 000000010fc2c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 kvfree_call_rcu+0xbb/0x410
 cfg80211_update_known_bss+0x634/0x1330
 __cfg80211_bss_update+0x147/0x2120
 cfg80211_inform_single_bss_data+0xba9/0x1ac0
 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 fb 78 15 f6 e8 36 d3 4c 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:ffffc90006e366c0 EFLAGS: 00000282
RAX: 2ceefe5ec4b32300 RBX: 0000000000000000 RCX: 2ceefe5ec4b32300
RDX: 0000000000000006 RSI: ffffffff8d9b6a7d RDI: 0000000000000001
RBP: ffffc90006e36770 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000dc6cd8
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0x374/0x2390
Code: ea 48 01 d2 48 01 f2 48 bd 00 00 00 00 00 fc ff df 0f 84 37 01 00 00 4c 8d 62 04 4c 8d 6a 05 4c 89 e0 48 c1 e8 03 0f b6 04 28 <84> c0 0f 85 6d 19 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f
RSP: 0018:ffffc90006e36838 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffffff9027672c RCX: ffffffff90276730
RDX: ffffffff90db64fc RSI: ffffffff90db64fc RDI: ffffffff8be332a0
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8172c195
R10: ffffc90006e36958 R11: ffffffff81ac3930 R12: ffffffff90db6500
R13: ffffffff90db6501 R14: ffffc90006e36908 R15: ffffffff9027672c
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 __set_page_owner+0x25c/0x4a0
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 alloc_pages_noprof+0xa9/0x190
 stack_depot_save_flags+0x777/0x860
 kasan_save_track+0x4f/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 __request_module+0x2b5/0x5e0
 crypto_alg_mod_lookup+0xeb/0x5f0
 crypto_type_has_alg+0x28/0x60
 xfrm_probe_algs+0x9e/0x360
 pfkey_register+0x113/0x890
 pfkey_sendmsg+0xbfe/0x1090
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa9a2f8eba9
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:00007fa9a3de6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa9a31d5fa0 RCX: 00007fa9a2f8eba9
RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000000000000008
RBP: 00007fa9a3011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa9a31d6038 R14: 00007fa9a31d5fa0 R15: 00007ffdf9022688
 </TASK>
