rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10204 ticks this GP) idle=7cb4/1/0x4000000000000000 softirq=23987/23987 fqs=4485
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   996175          0            0
rcu: 	cputime:    31182      21296           49   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=17297 q=3383 ncpus=2)
CPU: 1 UID: 0 PID: 8545 Comm: syz.2.736 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:__rcu_read_unlock+0x4/0xe0
Code: 07 80 c1 03 38 c1 7c dc 48 89 df e8 b6 09 7c 00 eb d2 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <41> 57 41 56 41 55 41 54 53 49 bf 00 00 00 00 00 fc ff df 65 48 8b
RSP: 0018:ffffc900001dfc28 EFLAGS: 00000282
RAX: fec764580eed5c00 RBX: 0000000000000000 RCX: fec764580eed5c00
RDX: 0000000000000007 RSI: ffffffff8dba5cac RDI: ffffffff8be33300
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81cea296
R10: ffffc900001dfd18 R11: ffffffff81ac3930 R12: 0000000000000aa4
R13: dffffc0000000000 R14: 00007fb279d8ebe9 R15: 0000000000000000
FS:  00007fb27ac0f6c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ed273 CR3: 000000010ee7c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602
Call Trace:
 <IRQ>
 is_bpf_text_address+0x292/0x2b0
 kernel_text_address+0xa5/0xe0
 __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:unwind_next_frame+0x214/0x2390
Code: ef 08 8b 15 1e 2f 4b 0c 8d 42 ff 44 39 f8 0f 86 65 18 00 00 44 89 f8 4c 8d 2c 85 3c 07 e0 90 4c 89 e8 48 c1 e8 03 0f b6 04 28 <84> c0 48 89 eb 0f 85 1c 1c 00 00 45 8b 6d 00 44 89 f8 ff c0 48 8d
RSP: 0018:ffffc9000296ee98 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: 0000000000000001 RCX: fec764580eed5c00
RDX: 00000000000a7d05 RSI: ffffffff8be332e0 RDI: ffffffff8be332a0
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8172c195
R10: ffffc9000296efb8 R11: ffffffff81ac3930 R12: ffffffff8206d7ce
R13: ffffffff90e42298 R14: ffffc9000296ef68 R15: 00000000000106d7
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0x157/0x9c0
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:xas_start+0x19f/0x770
Code: 00 e8 85 9b 48 f6 e9 7a 02 00 00 4c 89 f0 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 4c 89 f7 e8 f1 0f ac f6 <4d> 8b 26 49 8d 5c 24 48 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48
RSP: 0018:ffffc9000296f7c8 EFLAGS: 00000246
RAX: 1ffff9200052df12 RBX: 0000000000000003 RCX: ffff8880227b8000
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8b77c010
R10: ffffc9000296f8b0 R11: fffff5200052df19 R12: 0000000000000003
R13: ffffc9000296f8a8 R14: ffffc9000296f890 R15: 1ffff9200052df15
 xas_load+0x2c/0x5b0
 xa_load+0x118/0x210
 memcg_list_lru_alloc+0x12f/0x7e0
 __memcg_slab_post_alloc_hook+0x13c/0x7f0
 kmem_cache_alloc_lru_noprof+0x2c7/0x3d0
 __d_alloc+0x36/0x7a0
 d_alloc_pseudo+0x21/0xc0
 alloc_file_pseudo+0xcc/0x210
 anon_inode_getfile+0xc5/0x1a0
 __se_sys_perf_event_open+0xf20/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb279d8ebe9
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:00007fb27ac0f038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fb279fb6090 RCX: 00007fb279d8ebe9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007fb279e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000b R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb279fb6128 R14: 00007fb279fb6090 R15: 00007ffeb8bba1b8
 </TASK>
sched: DL replenish lagged too much
