loop3: rw=1, want=336, limit=112 attempt to access beyond end of device loop3: rw=1, want=337, limit=112 attempt to access beyond end of device loop3: rw=1, want=2282, limit=112 rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (10499 ticks this GP) idle=c2a/1/0x4000000000000002 softirq=26509/26518 fqs=5224 rcu: (t=10500 jiffies g=30185 q=2570) NMI backtrace for cpu 0 CPU: 0 PID: 16731 Comm: syz-executor4 Not tainted 4.19.0-rc6-next-20181005+ #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1c2/0x22c lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 print_cpu_stall.cold.65+0x1f3/0x3c6 kernel/rcu/tree.c:1334 check_cpu_stall kernel/rcu/tree.c:1408 [inline] rcu_pending kernel/rcu/tree.c:2961 [inline] rcu_check_callbacks+0xac1/0x1400 kernel/rcu/tree.c:2506 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x412/0x10c0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline] smp_apic_timer_interrupt+0x1a1/0x750 arch/x86/kernel/apic/apic.c:1059 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804 RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] RIP: 0010:seccomp_run_filters+0xc6/0x2e0 kernel/seccomp.c:195 Code: ff ff 48 8d bb 78 07 00 00 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 17 02 00 00 4d 8d ac 24 40 ff ff ff 48 8b 9b 78 07 00 00 <48> b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffff88017ecb79d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff100311ee1c7 RBX: ffff8801d947e640 RCX: ffffc90009eda000 RDX: 0000000000040000 RSI: ffffffff817dc91e RDI: ffff880188f70e38 RBP: ffff88017ecb7b00 R08: ffff880188f706c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88017ecb7ad8 R13: ffff88017ecb7a18 R14: dffffc0000000000 R15: 0000000000000000 __seccomp_filter+0xd0/0xe60 kernel/seccomp.c:668 __secure_computing+0x100/0x370 kernel/seccomp.c:795 syscall_trace_enter+0x4e2/0x1260 arch/x86/entry/common.c:120 do_syscall_64+0x601/0x820 arch/x86/entry/common.c:280 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f554d46fcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffc066391bf R14: 00007f554d4709c0 R15: 0000000000000000