kvm: pic: non byte read
kvm: pic: non byte read
kasan: GPF could be caused by NULL-ptr deref or user memory access
kvm: pic: non byte read
kvm: pic: non byte read
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 31591 Comm: syz-executor2 Not tainted 4.20.0-rc1-next-20181109+ #110
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop4' (00000000c92c0529): kobject_uevent_env
RIP: 0010:kvm_pv_send_ipi+0x364/0xdd0 arch/x86/kvm/lapic.c:579
Code: 45 84 ed 0f 84 da 07 00 00 e8 38 75 66 00 48 8d 4b 14 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 8d 70 fe ff ff 48 c1 ea 03 <0f> b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f5
RSP: 0018:ffff8801d85e6ee0 EFLAGS: 00010203
kobject: 'loop4' (00000000c92c0529): fill_kobj_path: path = '/devices/virtual/block/loop4'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000014
RDX: 0000000000000002 RSI: ffffffff81193378 RDI: 0000000000000005
RBP: ffff8801d85e7080 R08: ffff8801bc0786c0 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801d85e7058
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801d85e6fd8
FS:  00007f55b9ff0700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop5' (00000000608d32a7): kobject_uevent_env
CR2: 0000000000000000 CR3: 00000001bb89a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop5' (00000000608d32a7): fill_kobj_path: path = '/devices/virtual/block/loop5'
Call Trace:
kobject: 'loop3' (00000000b3459b32): kobject_uevent_env
 kvm_emulate_hypercall+0x5e2/0xf20 arch/x86/kvm/x86.c:6999
kobject: 'loop3' (00000000b3459b32): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000608d32a7): kobject_uevent_env
 handle_vmcall+0x15/0x20 arch/x86/kvm/vmx.c:7510
 vmx_handle_exit+0x338/0x4630 arch/x86/kvm/vmx.c:10600
kobject: 'loop5' (00000000608d32a7): fill_kobj_path: path = '/devices/virtual/block/loop5'
 vcpu_enter_guest arch/x86/kvm/x86.c:7809 [inline]
 vcpu_run arch/x86/kvm/x86.c:7872 [inline]
 kvm_arch_vcpu_ioctl_run+0x3e15/0x72b0 arch/x86/kvm/x86.c:8072
 kvm_vcpu_ioctl+0x5c8/0x1150 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2596
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f55b9fefc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f55b9ff06d4
R13: 00000000004c034e R14: 00000000004d0bc0 R15: 00000000ffffffff
Modules linked in:
kobject: 'kvm' (000000005d610be4): kobject_uevent_env
kvm: pic: non byte read
kobject: 'kvm' (000000005d610be4): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kvm: pic: non byte read
kobject: 'kvm' (000000005d610be4): kobject_uevent_env
kobject: 'kvm' (000000005d610be4): kobject_uevent_env
kobject: 'kvm' (000000005d610be4): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000005d610be4): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c92c0529): kobject_uevent_env
kobject: 'kvm' (000000005d610be4): kobject_uevent_env
---[ end trace 6be57031a8c96612 ]---
kobject: 'loop4' (00000000c92c0529): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'kvm' (000000005d610be4): kobject_uevent_env
kobject: 'kvm' (000000005d610be4): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RIP: 0010:kvm_pv_send_ipi+0x364/0xdd0 arch/x86/kvm/lapic.c:579
kobject: 'kvm' (000000005d610be4): fill_kobj_path: path = '/devices/virtual/misc/kvm'
Code: 45 84 ed 0f 84 da 07 00 00 e8 38 75 66 00 48 8d 4b 14 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 8d 70 fe ff ff 48 c1 ea 03 <0f> b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f5
RSP: 0018:ffff8801d85e6ee0 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000014
RDX: 0000000000000002 RSI: ffffffff81193378 RDI: 0000000000000005
RBP: ffff8801d85e7080 R08: ffff8801bc0786c0 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801d85e7058
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801d85e6fd8
FS:  00007f55b9ff0700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc8ddca5330 CR3: 00000001bb89a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400