rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2645 jiffies s: 156713 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30255 Comm: syz.3.6711 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:asm_sysvec_irq_work+0x0/0x20 arch/x86/include/asm/idtentry.h:722
Code: e9 b5 03 00 00 90 90 90 90 90 0f 01 ca fc 6a ff e8 b5 02 00 00 48 89 c4 48 89 e7 e8 7a 21 ef ff e9 95 03 00 00 90 90 90 90 90 <0f> 01 ca fc 6a ff e8 95 02 00 00 48 89 c4 48 89 e7 e8 4a 26 ef ff
RSP: 0018:ffffc900001e0a98 EFLAGS: 00000006
RAX: 606853c1f975ce00 RBX: 1ffff9200003c160 RCX: 606853c1f975ce00
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: ffffffff8adf2060
RBP: ffffc900001e0bb0 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
FS:  00007f9ad0ff06c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f551cbdfff8 CR3: 000000001ba82000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 82 30 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900001e0ac0 EFLAGS: 00000206
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1832
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:stack_trace_save+0x8d/0xf0 kernel/stacktrace.c:122
Code: f3 f3 f3 f3 66 42 c7 44 33 04 00 00 42 c6 44 33 06 00 48 89 7c 24 20 89 74 24 28 ff c2 89 54 24 2c 48 c7 44 24 30 00 00 00 00 <65> 48 8b 15 6b 49 91 7e 48 c7 c7 30 26 71 81 48 89 c6 31 c9 e8 aa
RSP: 0018:ffffc9000d2779c0 EFLAGS: 00000202
RAX: ffffc9000d2779e0 RBX: 1ffff92001a4ef38 RCX: f3f8f8f8f1f1f1f1
RDX: 0000000000000001 RSI: 0000000000000040 RDI: ffffc9000d277a70
RBP: ffffc9000d277a60 R08: ffffc9000d277c6f R09: ffffc9000d277a70
R10: dffffc0000000000 R11: fffff52001a4ef8e R12: ffffffff8c65a9e8
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffc9000d277a70
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 apparmor_sk_alloc_security+0x74/0x100 security/apparmor/lsm.c:812
 security_sk_alloc+0x6a/0xa0 security/security.c:2332
 sk_prot_alloc+0x101/0x210 net/core/sock.c:2055
 sk_alloc+0x36/0x340 net/core/sock.c:2108
 inet6_create+0x7ef/0x1240 net/ipv6/af_inet6.c:192
 __sock_create+0x4a2/0x940 net/socket.c:1549
 sock_create net/socket.c:1605 [inline]
 __sys_socket_create net/socket.c:1642 [inline]
 __sys_socket+0xc4/0x190 net/socket.c:1670
 __do_sys_socket net/socket.c:1683 [inline]
 __se_sys_socket net/socket.c:1681 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1681
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9ad019ce59
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:00007f9ad0ff0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f9ad0415fa0 RCX: 00007f9ad019ce59
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 000000000000000a
RBP: 00007f9ad0232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9ad0416038 R14: 00007f9ad0415fa0 R15: 00007ffe2dd6b388
 </TASK>