kvm [10760]: vcpu0, guest rIP: 0xc5 Hyper-V unhandled rdmsr: 0x4000000d kvm_hv_set_msr: 2 callbacks suppressed kvm [10760]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x4000006a data 0xffff0032784a kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 10761 Comm: syz-executor.5 Not tainted 5.3.0-next-20190916 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__apic_accept_irq+0x46/0xbc0 arch/x86/kvm/lapic.c:1029 Code: c0 44 89 45 d4 4c 89 4d c8 e8 46 b4 5c 00 49 8d 86 98 00 00 00 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 65 0a 00 00 4d 8b be 98 00 00 00 0f 1f 44 00 00 RSP: 0018:ffff8880669c7820 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880669c7958 RCX: ffffc900109d6000 RDX: 0000000000000013 RSI: ffffffff8115f16a RDI: 0000000000000000 RBP: ffff8880669c7878 R08: 0000000000000000 R09: 0000000000000000 R10: fffff5200032b071 R11: ffffc9000195838b R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888038594b80 FS: 00007f5a5bedb700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000068686000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_apic_set_irq+0x10b/0x170 arch/x86/kvm/lapic.c:558 stimer_notify_direct arch/x86/kvm/hyperv.c:648 [inline] stimer_expiration arch/x86/kvm/hyperv.c:659 [inline] kvm_hv_process_stimers+0xd55/0x1a10 arch/x86/kvm/hyperv.c:686 vcpu_enter_guest+0x4d2/0x6230 arch/x86/kvm/x86.c:7920 vcpu_run arch/x86/kvm/x86.c:8176 [inline] kvm_arch_vcpu_ioctl_run+0x424/0x17a0 arch/x86/kvm/x86.c:8384 kvm_vcpu_ioctl+0x4dc/0xfc0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2764 vfs_ioctl fs/ioctl.c:47 [inline] file_ioctl fs/ioctl.c:539 [inline] do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:726 ksys_ioctl+0xab/0xd0 fs/ioctl.c:743 __do_sys_ioctl fs/ioctl.c:750 [inline] __se_sys_ioctl fs/ioctl.c:748 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:748 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4598e9 Code: fd b7 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 b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5a5bedac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5a5bedb6d4 R13: 00000000004c2c68 R14: 00000000004d6330 R15: 00000000ffffffff Modules linked in: ---[ end trace 07dfc4fbd4c3d32f ]--- RIP: 0010:__apic_accept_irq+0x46/0xbc0 arch/x86/kvm/lapic.c:1029 Code: c0 44 89 45 d4 4c 89 4d c8 e8 46 b4 5c 00 49 8d 86 98 00 00 00 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 65 0a 00 00 4d 8b be 98 00 00 00 0f 1f 44 00 00 RSP: 0018:ffff8880669c7820 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880669c7958 RCX: ffffc900109d6000 RDX: 0000000000000013 RSI: ffffffff8115f16a RDI: 0000000000000000 RBP: ffff8880669c7878 R08: 0000000000000000 R09: 0000000000000000 R10: fffff5200032b071 R11: ffffc9000195838b R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888038594b80 FS: 00007f5a5bedb700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc0fd63bdb8 CR3: 0000000068686000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400