===================================================== BUG: KMSAN: uninit-value in profile_hit include/linux/profile.h:58 [inline] BUG: KMSAN: uninit-value in profile_tick+0x1dd/0x1e0 kernel/profile.c:339 profile_hit include/linux/profile.h:58 [inline] profile_tick+0x1dd/0x1e0 kernel/profile.c:339 tick_sched_handle kernel/time/tick-sched.c:244 [inline] tick_sched_timer+0x5ea/0x700 kernel/time/tick-sched.c:1480 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x583/0x1140 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x4f8/0x1eb0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0x14f/0x5b0 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x99/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:649 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x33/0x50 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline] unlock_task_sighand include/linux/sched/signal.h:753 [inline] do_send_sig_info+0x1d8/0x240 kernel/signal.c:1297 do_send_specific+0x21e/0x350 kernel/signal.c:3914 do_tkill kernel/signal.c:3940 [inline] __do_sys_tgkill kernel/signal.c:3959 [inline] __se_sys_tgkill kernel/signal.c:3953 [inline] __x64_sys_tgkill+0x30c/0x3f0 kernel/signal.c:3953 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 pt.i.i created at: ep_send_events fs/eventpoll.c:1644 [inline] ep_poll fs/eventpoll.c:1823 [inline] do_epoll_wait+0x7bb/0x2df0 fs/eventpoll.c:2258 do_epoll_pwait fs/eventpoll.c:2292 [inline] __do_sys_epoll_pwait fs/eventpoll.c:2305 [inline] __se_sys_epoll_pwait+0x26c/0x530 fs/eventpoll.c:2299 CPU: 1 PID: 4996 Comm: syz-fuzzer Tainted: G W 6.2.0-syzkaller-81151-g224e1375d540 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 =====================================================