=====================================================
BUG: KMSAN: uninit-value in profile_hit include/linux/profile.h:58 [inline]
BUG: KMSAN: uninit-value in profile_tick+0x1ca/0x1d0 kernel/profile.c:343
 profile_hit include/linux/profile.h:58 [inline]
 profile_tick+0x1ca/0x1d0 kernel/profile.c:343
 tick_sched_handle kernel/time/tick-sched.c:244 [inline]
 tick_sched_timer+0x5e4/0x700 kernel/time/tick-sched.c:1480
 __run_hrtimer+0x298/0x910 kernel/time/hrtimer.c:1685
 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline]
 hrtimer_interrupt+0x78d/0x1440 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x14b/0x5b0 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x95/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x2f/0x50 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:404 [inline]
 __wake_up_common_lock kernel/sched/wait.c:139 [inline]
 __wake_up_sync_key+0x13f/0x1b0 kernel/sched/wait.c:204
 pipe_write+0x2177/0x2e20 fs/pipe.c:594
 call_write_iter include/linux/fs.h:2187 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x830/0x1570 fs/read_write.c:578
 ksys_write+0x21b/0x4e0 fs/read_write.c:631
 __do_sys_write fs/read_write.c:643 [inline]
 __se_sys_write fs/read_write.c:640 [inline]
 __x64_sys_write+0x8f/0xd0 fs/read_write.c:640
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Local variable task_event.i created at:
 perf_event_task kernel/events/core.c:7861 [inline]
 perf_event_fork+0x43/0x220 kernel/events/core.c:7892
 copy_process+0x64f3/0x69f0 kernel/fork.c:2491

CPU: 0 PID: 3531 Comm: syz-executor.3 Not tainted 6.0.0-rc5-syzkaller-48538-g8f4ae27df775 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
=====================================================