===================================================== 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:339 profile_hit include/linux/profile.h:58 [inline] profile_tick+0x1ca/0x1d0 kernel/profile.c:339 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:1096 [inline] __sysvec_apic_timer_interrupt+0x14b/0x5b0 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x95/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x2f/0x50 kernel/locking/spinlock.c:194 task_rq_unlock kernel/sched/sched.h:1621 [inline] wait_task_inactive+0x24a/0x550 kernel/sched/core.c:3309 ptrace_check_attach+0x521/0x5f0 kernel/ptrace.c:272 __do_sys_ptrace kernel/ptrace.c:1291 [inline] __se_sys_ptrace+0x276/0x780 kernel/ptrace.c:1269 __x64_sys_ptrace+0xb9/0x110 kernel/ptrace.c:1269 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 iovstack_r created at: process_vm_rw+0x88/0xf80 mm/process_vm_access.c:261 __do_sys_process_vm_readv mm/process_vm_access.c:295 [inline] __se_sys_process_vm_readv mm/process_vm_access.c:291 [inline] __x64_sys_process_vm_readv+0x11b/0x1a0 mm/process_vm_access.c:291 CPU: 0 PID: 3507 Comm: strace-static-x Not tainted 6.1.0-rc4-syzkaller-62821-gcb231e2f67ec #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 =====================================================