rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (7 ticks this GP) idle=b01/1/0x4000000000000000 softirq=37435/37435 fqs=5247 
	(detected by 1, t=10502 jiffies, g=54117, q=1194)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14543 Comm: syz.8.2135 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:225 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x4/0x80 kernel/kcov.c:299
Code: 77 22 89 ff 89 f6 4a c7 44 02 08 05 00 00 00 4a 89 7c 02 10 4a 89 74 02 18 4a 89 44 02 20 48 ff c1 48 89 0a c3 90 48 8b 04 24 <65> 48 8b 0d 74 48 89 7e 65 8b 15 75 48 89 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc900000073b8 EFLAGS: 00000046
RAX: ffffffff81980f04 RBX: ffffc90000007560 RCX: ffff88802a2bbb80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000074b0 R08: ffffc90000007537 R09: ffffc90000007500
R10: dffffc0000000000 R11: fffff52000000ea7 R12: dffffc0000000000
R13: ffffc90000007566 R14: 0000000000000000 R15: ffffc900000076c0
FS:  00007efe3af006c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32923ffc CR3: 0000000063db5000 CR4: 00000000003506f0
DR0: 0000000000000004 DR1: 0000200000000300 DR2: 0000000000000007
DR3: 0000000000000007 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_prepare_sample+0xda4/0x1cb0 kernel/events/core.c:7742
 __perf_event_output kernel/events/core.c:7812 [inline]
 perf_event_output_forward+0x185/0x2e0 kernel/events/core.c:7832
 __perf_event_overflow+0x35f/0x550 kernel/events/core.c:9525
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10057
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10031
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
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 fc 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007b00 EFLAGS: 00000206
RAX: 1bc39b55d383e100 RBX: 1ffff92000000f64 RCX: 1bc39b55d383e100
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a4b80
RBP: ffffc90000007bd8 R08: ffffffff902140cf R09: 1ffffffff2042819
R10: dffffc0000000000 R11: fffffbfff204281a R12: ffffffff8c323400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x132/0x140 net/mac80211/util.c:831
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4ea/0xb60 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:kmalloc include/linux/slab.h:608 [inline]
RIP: 0010:kzalloc include/linux/slab.h:738 [inline]
RIP: 0010:inetdev_init+0x58/0x4d0 net/ipv4/devinet.c:259
Code: 3d 2b 7a fd 04 01 0f 85 9d 03 00 00 e8 b1 28 ff f8 48 bd 00 00 00 00 00 fc ff df 48 c7 c0 a8 21 e4 8b 48 c1 e8 03 80 3c 28 00 <74> 0c 48 c7 c7 a8 21 e4 8b e8 9a 6d 44 f9 48 8b 3d cb 26 6a 03 ba
RSP: 0018:ffffc90002defa68 EFLAGS: 00000246
RAX: 1ffffffff17c8435 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000e6b9000 RSI: 000000000003aeba RDI: 000000000003aebb
RBP: dffffc0000000000 R08: ffffffff8d44d7a7 R09: 1ffffffff1a89af4
R10: dffffc0000000000 R11: fffffbfff1a89af5 R12: 1ffff1100f4ae06b
R13: dffffc0000000000 R14: ffff88807a570000 R15: 0000000000000005
 inetdev_event+0x26f/0x1350 net/ipv4/devinet.c:1543
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:391
 call_netdevice_notifiers_extack net/core/dev.c:2074 [inline]
 call_netdevice_notifiers net/core/dev.c:2088 [inline]
 register_netdevice+0x12a8/0x1720 net/core/dev.c:10454
 tun_set_iff+0x847/0xdd0 drivers/net/tun.c:2816
 __tun_chr_ioctl+0x762/0x1f30 drivers/net/tun.c:3076
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7efe3cca8199
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:00007efe3af00028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efe3cf2ffa0 RCX: 00007efe3cca8199
RDX: 0000200000000040 RSI: 00000000400454ca RDI: 0000000000000004
RBP: 00007efe3cd3f8e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efe3cf30038 R14: 00007efe3cf2ffa0 R15: 00007ffe9ccfbcc8
 </TASK>