kernel msg: ebtables bug: please report to author: entries_size too small watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor2:20069] Modules linked in: irq event stamp: 311268 hardirqs last enabled at (311267): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (311268): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (308858): [] __do_softirq+0x74d/0xa74 kernel/softirq.c:318 softirqs last disabled at (308851): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (308851): [] irq_exit+0x1d6/0x210 kernel/softirq.c:412 CPU: 1 PID: 20069 Comm: syz-executor2 Not tainted 4.19.0-rc2+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rep_nop arch/x86/include/asm/processor.h:665 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:670 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x3eb/0x5c0 kernel/smp.c:302 Code: 48 c1 e8 03 4c 01 e8 c6 00 f8 48 89 44 24 28 e8 9b 3b 0c 00 45 85 e4 74 67 48 8b 44 24 28 48 83 c3 18 49 89 c4 e8 75 3a 0c 00 90 48 89 d8 41 c6 04 24 04 48 c1 e8 03 42 0f b6 04 28 84 c0 74 RSP: 0018:ffff8801cdaaf3a0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801b1c1c4c0 RBX: ffff8801cdaaf418 RCX: ffffffff817094fc RDX: 0000000000000000 RSI: ffffffff817094ab RDI: 0000000000000005 RBP: ffff8801cdaaf4f0 R08: ffff8801b1c1c4c0 R09: ffffed003b605b98 R10: ffffed003b605b98 R11: ffff8801db02dcc7 R12: ffffed0039b55e90 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000001395940(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc85ea1d000 CR3: 00000001d021a000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: loaded_vmcs_clear arch/x86/kvm/vmx.c:2218 [inline] vmx_vcpu_load+0x873/0xfe0 arch/x86/kvm/vmx.c:3062 kvm_arch_vcpu_load+0x22b/0x940 arch/x86/kvm/x86.c:3106 vcpu_load+0x32/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:164 kvm_unload_vcpu_mmu arch/x86/kvm/x86.c:8852 [inline] kvm_free_vcpus arch/x86/kvm/x86.c:8867 [inline] kvm_arch_destroy_vm+0x1f9/0x7c0 arch/x86/kvm/x86.c:8967 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:752 [inline] kvm_put_kvm+0x73f/0x1060 arch/x86/kvm/../../../virt/kvm/kvm_main.c:773 kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2407 __fput+0x38a/0xa40 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x410c51 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffc5fc2d9f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000410c51 RDX: 0000000000000000 RSI: 0000000000731870 RDI: 0000000000000007 RBP: 0000000000000000 R08: ffffffffffffffff R09: ffffffffffffffff R10: 00007ffc5fc2d920 R11: 0000000000000293 R12: 000000000000000f R13: 00000000000cc92d R14: 00000000000005d0 R15: badc0ffeebadface Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 20082 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x18f/0x5020 kernel/locking/lockdep.c:3288 Code: b6 14 02 48 c7 c0 20 78 b5 89 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 21 12 00 00 8b 1d 99 2f 56 08 85 db 0f 84 5d 09 00 00 <44> 8b 1d 2a 7e b8 06 45 85 db 0f 85 95 00 00 00 45 31 c0 83 fe 01 RSP: 0018:ffff88018a1bec60 EFLAGS: 00000046 RAX: 0000000000000086 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 1ffffffff10237c4 RSI: 0000000000000000 RDI: ffffffff8811be20 RBP: ffff88018a1beff0 R08: 0000000000000000 R09: 0000000000000001 R10: fffff52000389e47 R11: ffffc90001c4f23b R12: 0000000000000001 R13: ffffc90001c4fda8 R14: ffff8801d9824400 R15: 0000000000000002 FS: 00007f0e758ae700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000930060 CR3: 00000001b3bb8000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1e4/0x4f0 kernel/locking/lockdep.c:3901 rcu_lock_acquire include/linux/rcupdate.h:244 [inline] srcu_read_lock include/linux/srcu.h:199 [inline] kvm_arch_vcpu_put+0x171/0x420 arch/x86/kvm/x86.c:3178 kvm_sched_out+0x91/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3985 __fire_sched_out_preempt_notifiers kernel/sched/core.c:2497 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:2505 [inline] prepare_task_switch kernel/sched/core.c:2611 [inline] context_switch kernel/sched/core.c:2790 [inline] __schedule+0xf1e/0x1df0 kernel/sched/core.c:3473 preempt_schedule_common+0x22/0x60 kernel/sched/core.c:3597 _cond_resched+0x1d/0x30 kernel/sched/core.c:4963 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x292/0x710 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:697 [inline] mmu_topup_memory_cache arch/x86/kvm/mmu.c:917 [inline] mmu_topup_memory_caches+0xf7/0x3a0 arch/x86/kvm/mmu.c:963 kvm_mmu_load+0x21/0x1260 arch/x86/kvm/mmu.c:4957 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest+0x3c8b/0x61a0 arch/x86/kvm/x86.c:7495 vcpu_run arch/x86/kvm/x86.c:7693 [inline] kvm_arch_vcpu_ioctl_run+0x373/0x16d0 arch/x86/kvm/x86.c:7870 kvm_vcpu_ioctl+0x7b8/0x1280 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0e758adc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f0e758ae6d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000000