RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 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: 27059 Comm: syz-executor1 Not tainted 4.19.0-rc3+ #136 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop4' (00000000ff7b57a2): kobject_uevent_env RIP: 0010:kvm_lapic_hv_timer_in_use+0x56/0xd0 arch/x86/kvm/lapic.c:1622 Code: c1 ea 03 80 3c 02 00 75 7a 48 8b 9b e0 03 00 00 e8 bf 77 66 00 48 8d 7b 7c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 5b 7c RSP: 0018:ffff8801972ceb28 EFLAGS: 00010207 kobject: 'loop4' (00000000ff7b57a2): fill_kobj_path: path = '/devices/virtual/block/loop4' RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e0e7000 RDX: 000000000000000f RSI: ffffffff81185901 RDI: 000000000000007c RBP: ffff8801972ceb30 R08: ffff8801be36e240 R09: ffffed0031f5dcdc R10: ffffed0031f5dcdc R11: ffff88018faee6e7 R12: 0000000000000001 R13: 1ffff10032e59d6c R14: 0000000000000000 R15: ffff88018fae8be0 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f0bb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002cd28000 CR3: 00000001d9211000 CR4: 00000000001426e0 Call Trace: kvm_arch_vcpu_load+0x516/0x970 arch/x86/kvm/x86.c:3128 kvm_sched_in+0x82/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3975 __fire_sched_in_preempt_notifiers kernel/sched/core.c:2481 [inline] fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline] finish_task_switch+0x56e/0x900 kernel/sched/core.c:2679 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700 retint_kernel+0x1b/0x2d RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] RIP: 0010:update_stack_state+0x4d5/0x690 arch/x86/kernel/unwind_frame.c:270 Code: 80 3c 02 00 0f 85 7e 01 00 00 4c 8d ad 58 ff ff ff 4d 8b 24 24 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 4b 01 00 00 49 c1 ed 03 4c 89 a5 58 ff ff ff 48 b8 00 00 00 RSP: 0018:ffff8801972ceff8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02 RAX: dffffc0000000000 RBX: ffff8801972cf530 RCX: 1ffff10032e59e00 RDX: 1ffff10032e59e0b RSI: ffff8801972cf540 RDI: ffff8801972cf250 RBP: ffff8801972cf100 R08: ffff8801972cf260 R09: ffff8801be36e240 R10: ffffed0032e59e4f R11: ffff8801972cf27f R12: ffffffff81c23082 R13: ffff8801972cf058 R14: ffff8801972cf228 R15: ffff8801972cf268 unwind_next_frame.part.7+0x1ae/0x9e0 arch/x86/kernel/unwind_frame.c:329 unwind_next_frame+0x3e/0x50 arch/x86/kernel/unwind_frame.c:287 __save_stack_trace+0x7d/0xf0 arch/x86/kernel/stacktrace.c:44 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283 do_one_broadcast net/netlink/af_netlink.c:1442 [inline] netlink_broadcast_filtered+0x110f/0x1680 net/netlink/af_netlink.c:1517 netlink_broadcast+0x3a/0x50 net/netlink/af_netlink.c:1541 uevent_net_broadcast_untagged lib/kobject_uevent.c:329 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:406 [inline] kobject_uevent_env+0x96f/0x1360 lib/kobject_uevent.c:587 kvm_uevent_notify_change.part.33+0x2f8/0x440 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3922 kvm_uevent_notify_change arch/x86/kvm/../../../virt/kvm/kvm_main.c:3881 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3219 [inline] kvm_dev_ioctl+0x15e6/0x1b10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3241 __do_compat_sys_ioctl fs/compat_ioctl.c:1419 [inline] __se_compat_sys_ioctl fs/compat_ioctl.c:1365 [inline] __ia32_compat_sys_ioctl+0x20e/0x630 fs/compat_ioctl.c:1365 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f0fca9 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f0b0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000000ae01 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 5acad85416ee4965 ]--- RIP: 0010:kvm_lapic_hv_timer_in_use+0x56/0xd0 arch/x86/kvm/lapic.c:1622 Code: c1 ea 03 80 3c 02 00 75 7a 48 8b 9b e0 03 00 00 e8 bf 77 66 00 48 8d 7b 7c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 5b 7c RSP: 0018:ffff8801972ceb28 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e0e7000 RDX: 000000000000000f RSI: ffffffff81185901 RDI: 000000000000007c RBP: ffff8801972ceb30 R08: ffff8801be36e240 R09: ffffed0031f5dcdc R10: ffffed0031f5dcdc R11: ffff88018faee6e7 R12: 0000000000000001 R13: 1ffff10032e59d6c R14: 0000000000000000 R15: ffff88018fae8be0 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f0bb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002cd28000 CR3: 00000001d9211000 CR4: 00000000001426e0