watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.1:21826] Modules linked in: irq event stamp: 1711071 hardirqs last enabled at (1711070): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (1711070): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:184 hardirqs last disabled at (1711071): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3586): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3605): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3605): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 21826 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 7c 31 d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 fb eb e6 f8 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ba007bb8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: 0000000000000286 RCX: 1ffff11012295137 RDX: dffffc0000000000 RSI: ffff8880914a8998 RDI: 0000000000000286 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b40 R14: 0000000000000000 R15: ffff8880ba022b40 FS: 00007f0bb0b8b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe708f1c1b0 CR3: 000000004390e000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mod_timer kernel/time/timer.c:1071 [inline] mod_timer+0x4ea/0x1010 kernel/time/timer.c:1114 pie_timer+0x67b/0x740 net/sched/sch_pie.c:438 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:211 [inline] RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline] RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline] RIP: 0010:check_memory_region+0x20/0x170 mm/kasan/kasan.c:267 Code: 0f 1f 84 00 00 00 00 00 66 90 48 85 f6 0f 84 3f 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 44 0f b6 c2 48 39 c7 0f 86 20 01 00 00 <4c> 8d 54 37 ff 41 54 48 b8 00 00 00 00 00 fc ff df 4d 89 d1 55 48 RSP: 0018:ffff8880a2b1fb00 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 RAX: ffff7fffffffffff RBX: ffff888092727b48 RCX: ffffffff8157bd99 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88804d00e420 RBP: ffff88804d00e400 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a2b1fb78 R13: ffff88804d00e420 R14: 00007f0bb2328000 R15: ffff888055aca080 atomic_inc include/asm-generic/atomic-instrumented.h:109 [inline] mark_wake_futex+0xb9/0x160 kernel/futex.c:1548 futex_wake+0x3a7/0x480 kernel/futex.c:1699 do_futex+0x2ca/0x1880 kernel/futex.c:3894 __do_sys_futex kernel/futex.c:3950 [inline] __se_sys_futex+0x28f/0x3b0 kernel/futex.c:3918 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f0bb2216049 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0bb0b8b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f0bb2328f68 RCX: 00007f0bb2216049 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f0bb2328f6c RBP: 00007f0bb2328f60 R08: 0000023fe79ee5d7 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000246 R12: 00007f0bb2328f6c R13: 00007ffd3508315f R14: 00007f0bb0b8b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 21814 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x1e6/0x420 kernel/smp.c:302 Code: 48 8b 54 24 10 48 8d 74 24 40 8b 7c 24 1c e8 a1 f9 ff ff 41 89 c5 eb 07 e8 e7 03 0a 00 f3 90 44 8b 64 24 58 31 ff 41 83 e4 01 <44> 89 e6 e8 42 05 0a 00 45 85 e4 75 e1 e8 c8 03 0a 00 e8 c3 03 0a RSP: 0018:ffff88809fb8fa60 EFLAGS: 00000202 RAX: ffff8880b331e100 RBX: 1ffff11013f71f50 RCX: ffffffff8158819e RDX: 0000000000000000 RSI: ffffffff81588189 RDI: 0000000000000000 RBP: ffff88809fb8fb30 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: ffff8880303146bc FS: 00005555565d6400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555557043848 CR3: 000000009f2fd000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: task_function_call+0xe0/0x170 kernel/events/core.c:115 event_function_call+0x228/0x430 kernel/events/core.c:283 perf_remove_from_context+0x9b/0x1c0 kernel/events/core.c:2113 perf_event_release_kernel+0x169/0xcd0 kernel/events/core.c:4607 perf_release+0x33/0x40 kernel/events/core.c:4703 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff4c8c8cc8b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe63fd0890 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007ff4c8c8cc8b RDX: 0000001b30220000 RSI: 0000001b30221918 RDI: 0000000000000004 RBP: 00007ff4c8dee960 R08: 0000000000000000 R09: 000000003253460c R10: 0010e97cdda150c0 R11: 0000000000000293 R12: 00000000002299ae R13: 00007ffe63fd0990 R14: 00007ff4c8ded030 R15: 0000000000000032 ---------------- Code disassembly (best guess): 0: 48 c7 c0 88 82 f1 89 mov $0xffffffff89f18288,%rax 7: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx e: fc ff df 11: 48 c1 e8 03 shr $0x3,%rax 15: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) 19: 75 2f jne 0x4a 1b: 48 83 3d 7c 31 d8 01 cmpq $0x0,0x1d8317c(%rip) # 0x1d8319f 22: 00 23: 74 15 je 0x3a 25: 48 89 df mov %rbx,%rdi 28: 57 push %rdi 29: 9d popfq * 2a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction 2f: eb b2 jmp 0xffffffe3 31: e8 fb eb e6 f8 callq 0xf8e6ec31 36: eb c0 jmp 0xfffffff8 38: 0f 0b ud2 3a: 0f 0b ud2 3c: 48 rex.W 3d: c7 .byte 0xc7 3e: c7 (bad) 3f: 88 .byte 0x88