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: 0 PID: 8955 Comm: syz-executor1 Not tainted 4.19.0-rc4-next-20180921+ #77 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2486 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2492 [inline] RIP: 0010:finish_task_switch+0x3a4/0x900 kernel/sched/core.c:2684 Code: 3d 04 00 00 4d 8b bc 24 50 03 00 00 4d 85 ff 0f 84 ab fe ff ff 49 bc 00 00 00 00 00 fc ff df 49 8d 7f 10 48 89 f9 48 c1 e9 03 <42> 80 3c 21 00 0f 85 da 03 00 00 49 8b 4f 10 48 89 ce 48 c1 ee 03 RSP: 0018:ffff8801981ef0e0 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801dac2cc40 RCX: 1bd5a00000000022 RDX: 000000000000981e RSI: ffffffff810f018e RDI: dead000000000110 RBP: ffff8801981ef1c8 R08: ffff8801d939a5c0 R09: fffff52001eb2846 R10: fffff52001eb2846 R11: ffffc9000f594237 R12: dffffc0000000000 R13: ffff8801d1d3a1c0 R14: 0000000000000000 R15: dead000000000100 FS: 00007fb29b4f9700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb29b4b6db8 CR3: 00000001bd695000 CR4: 00000000001426f0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: context_switch kernel/sched/core.c:2833 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3479 preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3706 retint_kernel+0x1b/0x2d RIP: 0010:netlink_trim+0x19c/0x380 net/netlink/af_netlink.c:1281 Code: c1 e9 03 0f b6 04 01 43 8d 54 2d 00 84 c0 74 08 3c 03 0f 8e 80 01 00 00 44 8b b3 e0 00 00 00 89 d7 89 95 68 ff ff ff 44 89 f6 ff 83 38 fb 8b 95 68 ff ff ff 44 39 f2 73 3f 49 89 df e8 5c 83 RSP: 0018:ffff8801981ef4a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02 RAX: 0000000000000000 RBX: ffff8801cebda400 RCX: 1ffff10039d7b49c RDX: 00000000000003e8 RSI: 0000000000000500 RDI: 00000000000003e8 RBP: ffff8801981ef538 R08: ffff8801d939a5c0 R09: 0000000000000000 R10: ffffed003303ded4 R11: 0000000000000003 R12: 1ffff1003303de96 R13: 00000000000001f4 R14: 0000000000000500 R15: ffff8801981ef510 netlink_broadcast_filtered+0xf4/0x1680 net/netlink/af_netlink.c:1489 netlink_broadcast+0x3a/0x50 net/netlink/af_netlink.c:1534 uevent_net_broadcast_untagged lib/kobject_uevent.c:329 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:406 [inline] kobject_uevent_env+0x972/0x1370 lib/kobject_uevent.c:587 kvm_uevent_notify_change.part.33+0x2f8/0x450 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3921 kvm_uevent_notify_change arch/x86/kvm/../../../virt/kvm/kvm_main.c:3880 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3218 [inline] kvm_dev_ioctl+0xc81/0x1ae0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3240 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: 0033:0x457679 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:00007fb29b4f8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb29b4f96d4 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cfc28 R14: 00000000004bfd60 R15: 0000000000000000 Modules linked in: ---[ end trace 26cc5c2faa90036c ]--- RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2486 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2492 [inline] RIP: 0010:finish_task_switch+0x3a4/0x900 kernel/sched/core.c:2684 kobject: 'kvm' (00000000754eb7c2): kobject_uevent_env Code: 3d 04 00 00 4d 8b bc 24 50 03 00 00 4d 85 ff 0f 84 ab fe ff ff 49 bc 00 00 00 00 00 fc ff df 49 8d 7f 10 48 89 f9 48 c1 e9 03 <42> 80 3c 21 00 0f 85 da 03 00 00 49 8b 4f 10 48 89 ce 48 c1 ee 03 kobject: 'kvm' (00000000754eb7c2): fill_kobj_path: path = '/devices/virtual/misc/kvm' RSP: 0018:ffff8801981ef0e0 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801dac2cc40 RCX: 1bd5a00000000022 RDX: 000000000000981e RSI: ffffffff810f018e RDI: dead000000000110 RBP: ffff8801981ef1c8 R08: ffff8801d939a5c0 R09: fffff52001eb2846 R10: fffff52001eb2846 R11: ffffc9000f594237 R12: dffffc0000000000 R13: ffff8801d1d3a1c0 R14: 0000000000000000 R15: dead000000000100 FS: 00007fb29b4f9700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 kobject: 'kvm' (00000000754eb7c2): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb29b4b6db8 CR3: 00000001bd695000 CR4: 00000000001426f0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400