===================================================== BUG: KMSAN: uninit-value in do_profile_hits kernel/profile.c:308 [inline] BUG: KMSAN: uninit-value in profile_hits+0xbd1/0x12f0 kernel/profile.c:398 CPU: 0 PID: 8229 Comm: syz-executor.0 Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 do_profile_hits kernel/profile.c:308 [inline] profile_hits+0xbd1/0x12f0 kernel/profile.c:398 profile_hit include/linux/profile.h:64 [inline] profile_tick+0x215/0x220 kernel/profile.c:408 tick_sched_handle kernel/time/tick-sched.c:227 [inline] tick_sched_timer+0x472/0x5b0 kernel/time/tick-sched.c:1369 __run_hrtimer+0x48b/0xd20 kernel/time/hrtimer.c:1537 __hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline] hrtimer_interrupt+0x6e2/0x1b50 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0xfd/0x470 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0xc1/0xf0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650 RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 kernel/locking/spinlock.c:192 Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 21 ca b6 f2 eb be 44 89 f7 e8 17 ca b6 RSP: 0018:ffff888084583ba0 EFLAGS: 00000206 RAX: ffff8880a7ecc674 RBX: ffff88813fd95840 RCX: 00000000a82cc674 RDX: ffff8880a82cc674 RSI: 0000000000000150 RDI: ffff8880a86cc674 RBP: ffff888084583bb8 R08: ffffea000000000f R09: ffff88813fffa000 R10: 00000000b9d61c83 R11: 0000000000000000 R12: ffff8880a86cc674 R13: ffff88811205c908 R14: 0000000000000000 R15: 0000000000000200 task_rq_unlock kernel/sched/sched.h:1298 [inline] wake_up_new_task+0xb90/0x1270 kernel/sched/core.c:3862 kernel_clone+0x889/0x1350 kernel/fork.c:2526 __do_compat_sys_ia32_clone arch/x86/kernel/sys_ia32.c:254 [inline] __se_compat_sys_ia32_clone+0x222/0x350 arch/x86/kernel/sys_ia32.c:240 __ia32_compat_sys_ia32_clone+0x5d/0x80 arch/x86/kernel/sys_ia32.c:240 do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline] __do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142 do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f07549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ff98b100 EFLAGS: 00000206 ORIG_RAX: 0000000000000078 RAX: ffffffffffffffda RBX: 0000000001200011 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000969d3e8 RBP: 000000000816c000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Local variable ----fl.i@locks_remove_file created at: locks_remove_flock fs/locks.c:2737 [inline] locks_remove_file+0xf6/0x2060 fs/locks.c:2791 locks_remove_flock fs/locks.c:2737 [inline] locks_remove_file+0xf6/0x2060 fs/locks.c:2791 =====================================================