=====================================================
BUG: KMSAN: uninit-value in profile_hit include/linux/profile.h:53 [inline]
BUG: KMSAN: uninit-value in profile_tick+0x1ae/0x1b0 kernel/profile.c:339
 profile_hit include/linux/profile.h:53 [inline]
 profile_tick+0x1ae/0x1b0 kernel/profile.c:339
 tick_sched_handle kernel/time/tick-sched.c:277 [inline]
 tick_nohz_handler+0x588/0x690 kernel/time/tick-sched.c:297
 __run_hrtimer kernel/time/hrtimer.c:1687 [inline]
 __hrtimer_run_queues+0x56f/0xe40 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x3ab/0x1490 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0xa6/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x7e/0x90 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:94 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x33/0x60 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 skb_dequeue+0x1c7/0x2a0 net/core/skbuff.c:3860
 wireless_nlevent_flush net/wireless/wext-core.c:353 [inline]
 wext_netdev_notifier_call+0x9e/0x260 net/wireless/wext-core.c:371
 notifier_call_chain kernel/notifier.c:93 [inline]
 raw_notifier_call_chain+0xe8/0x440 kernel/notifier.c:461
 call_netdevice_notifiers_info+0x1be/0x2b0 net/core/dev.c:1950
 __netdev_upper_dev_unlink+0x37e/0x1940 net/core/dev.c:7894
 netdev_upper_dev_unlink+0x47/0x60 net/core/dev.c:7926
 ipvlan_link_delete+0x631/0x750 drivers/net/ipvlan/ipvlan_main.c:667
 default_device_exit_batch+0x12ec/0x15a0 net/core/dev.c:11635
 ops_exit_list net/core/net_namespace.c:178 [inline]
 cleanup_net+0x10f3/0x1c80 net/core/net_namespace.c:640
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa81/0x1bd0 kernel/workqueue.c:3348
 worker_thread+0xea5/0x1560 kernel/workqueue.c:3429
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Local variable layer created at:
 caif_device_notify+0x58/0x1ac0
 notifier_call_chain kernel/notifier.c:93 [inline]
 raw_notifier_call_chain+0xe8/0x440 kernel/notifier.c:461

CPU: 1 PID: 17869 Comm: kworker/u8:1 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: netns cleanup_net
=====================================================