=====================================================
BUG: KMSAN: uninit-value in profile_hit include/linux/profile.h:58 [inline]
BUG: KMSAN: uninit-value in profile_tick+0x1a8/0x1b0 kernel/profile.c:339
 profile_hit include/linux/profile.h:58 [inline]
 profile_tick+0x1a8/0x1b0 kernel/profile.c:339
 tick_sched_handle kernel/time/tick-sched.c:255 [inline]
 tick_sched_timer+0x595/0x690 kernel/time/tick-sched.c:1492
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x570/0x1110 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x47b/0x14a0 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x9f/0x390 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x75/0x90 arch/x86/kernel/apic/apic.c:1074
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:645
 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [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]
 unlock_task_sighand include/linux/sched/signal.h:750 [inline]
 ptrace_unfreeze_traced kernel/ptrace.c:229 [inline]
 __do_sys_ptrace kernel/ptrace.c:1307 [inline]
 __se_sys_ptrace+0x6dd/0x750 kernel/ptrace.c:1278
 __x64_sys_ptrace+0xbd/0x110 kernel/ptrace.c:1278
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Local variable r.i.i created at:
 __do_sys_wait4 kernel/exit.c:1807 [inline]
 __se_sys_wait4 kernel/exit.c:1804 [inline]
 __x64_sys_wait4+0xa8/0x310 kernel/exit.c:1804
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80

CPU: 0 PID: 4989 Comm: strace-static-x Not tainted 6.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
=====================================================