rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2668 jiffies s: 80393 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: 9653 Comm: syz.0.1766 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:36 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:__cant_sleep+0x84/0x220 kernel/sched/core.c:9978
Code: f2 4b 89 04 3c 43 c7 44 3c 08 f8 f3 f3 f3 43 c6 44 3c 08 00 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 f7 44 24 40 00 02 00 00 <43> c6 44 3c 08 f8 74 56 65 8b 05 55 da a7 7e 25 ff ff ff 7f 39 d0
RSP: 0018:ffffc900001e06c0 EFLAGS: 00000046
RAX: f2f2f2f8f1f1f1f1 RBX: ffffffff8cb7fca0 RCX: ffff888026b55940
RDX: 0000000000000000 RSI: 000000000000006a RDI: ffffffff8a917ce0
RBP: ffffc900001e0770 R08: 0000000000000001 R09: ffff8880b8f35558
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 1ffff9200003c0d8
R13: 1ffff9200003c0fc R14: ffff8880b8f35558 R15: dffffc0000000000
FS:  00007f03454776c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000075aa5000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000008d24
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 trace_call_bpf+0x89/0x6b0 kernel/trace/bpf_trace.c:106
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:9997
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
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 92 31 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:ffffc900001e0aa0 EFLAGS: 00000206
RAX: bf56a2aac1041400 RBX: 1ffff9200003c15c RCX: bf56a2aac1041400
RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0de0
RBP: ffffc900001e0b90 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
 __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:1747 [inline]
 __hrtimer_run_queues+0x560/0xd70 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 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:cred_label security/apparmor/include/cred.h:24 [inline]
RIP: 0010:aa_cred_raw_label security/apparmor/include/cred.h:49 [inline]
RIP: 0010:aa_current_raw_label security/apparmor/include/cred.h:89 [inline]
RIP: 0010:begin_current_label_crit_section+0x45/0x1d0 security/apparmor/include/cred.h:162
Code: 48 8b 1d 8e 60 2e 7c 48 81 c3 a0 08 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 21 52 ff fd 41 be 90 00 00 00 <4c> 03 33 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 02
RSP: 0018:ffffc90005a3fd98 EFLAGS: 00000246
RAX: 1ffff11004d6ac3c RBX: ffff888026b561e0 RCX: ffff888026b55940
RDX: ffffc9000cbe1000 RSI: 000000000000009d RDI: 000000000000009e
RBP: 0000000000000002 R08: ffffc90005a3feb0 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000000
R13: ffffffff8c651a60 R14: 0000000000000090 R15: dffffc0000000000
 apparmor_socket_create+0x48/0x110 security/apparmor/lsm.c:862
 security_socket_create+0x75/0xb0 security/security.c:2237
 __sock_create+0xd2/0x940 net/socket.c:1504
 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: 0033:0x7f034459c799
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:00007f0345477028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f0344815fa0 RCX: 00007f034459c799
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a
RBP: 00007f0344632bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0344816038 R14: 00007f0344815fa0 R15: 00007ffcd20e1218
 </TASK>