rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10466 ticks this GP) idle=cf7c/1/0x4000000000000000 softirq=19263/19842 fqs=5197
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1088306       1410            0
rcu: 	cputime:    34559      17924           54   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=10225 q=1485 ncpus=2)
CPU: 0 UID: 0 PID: 6816 Comm: syz.1.274 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #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:its_return_thunk+0x0/0x10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <c3> cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 cb ea c1 f5 cc
RSP: 0018:ffffc90000007048 EFLAGS: 00000246
RAX: ffffffff81746e1d RBX: ffff888034e6b800 RCX: ffff888106563980
RDX: 0000000000000100 RSI: ffff888034e6b800 RDI: ffffffff7fffffff
RBP: ffffc900000071f0 R08: 000000006c604830 R09: 1ffff1100455559c
R10: dffffc0000000000 R11: ffffed100455559d R12: ffff888030d788a8
R13: dffffc0000000000 R14: ffffffff8ae072c9 R15: dffffc0000000000
FS:  00007f017743c6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd31a9f6d00 CR3: 000000010fcf2000 CR4: 00000000000006f0
DR0: 0000000000000003 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __phys_addr+0x2d/0x180
 kfree+0x77/0x440
 ieee80211_inform_bss+0xbd9/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b20
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x22fc/0x2d80
 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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+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 1b 2d 21 f6 e8 56 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900069877a0 EFLAGS: 00000286
RAX: f12d993f5c149900 RBX: 0000000000000000 RCX: f12d993f5c149900
RDX: 0000000000000007 RSI: ffffffff8d998874 RDI: 0000000000000001
RBP: ffffc90006987840 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000d30ef4
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:mas_start+0x0/0x560
Code: 00 00 44 89 f1 80 e1 07 80 c1 03 38 c1 7c bc 4c 89 f7 e8 63 9b bd f6 eb b2 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 40 48 89 fb 48 bd 00 00 00
RSP: 0018:ffffc90006987900 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000d30f47 RCX: ffff888106563980
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffc90006987a00
RBP: dffffc0000000000 R08: ffff888106563980 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90006987a38 R14: ffffc90006987a00 R15: ffffc90006987a38
 mas_find+0x760/0xc10
 acct_collect+0x18c/0x770
 do_exit+0x5c3/0x22e0
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f017658e9a9
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:00007f017743c038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000006 RBX: 00007f01767b6080 RCX: 00007f017658e9a9
RDX: affffff7ffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007f0176610d69 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f01767b6080 R15: 00007ffc07887228
 </TASK>
