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: 12457 Comm: syz-executor1 Not tainted 4.19.0-rc4+ #27
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:2481 [inline]
RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline]
RIP: 0010:finish_task_switch+0x599/0x900 kernel/sched/core.c:2679
Code: 89 e1 48 c1 e9 03 42 80 3c 39 00 0f 85 a7 01 00 00 4d 8b 24 24 4d 85 e4 0f 84 ad fc ff ff 49 8d 7c 24 10 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 74 a5 e8 5b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00
kobject: 'loop5' (0000000041a1e9f8): kobject_uevent_env
RSP: 0018:ffff88012b38ef38 EFLAGS: 00010a06
RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022
RDX: 000000000000d5f3 RSI: ffffffff810f036e RDI: dead000000000110
kobject: 'loop5' (0000000041a1e9f8): fill_kobj_path: path = '/devices/virtual/block/loop5'
RBP: ffff88012b38f020 R08: ffff88012b386100 R09: ffffed0032897bfc
R10: ffffed0032897bfc R11: ffff8801944bdfe7 R12: dead000000000100
R13: ffff8801c78b6000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f3f19a4f700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f57198000 CR3: 000000018efd4000 CR4: 00000000001426e0
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x874/0x1ed0 kernel/sched/core.c:3473
 preempt_schedule_common+0x1f/0xd0 kernel/sched/core.c:3597
 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3623
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0xbb/0xd0 kernel/locking/spinlock.c:184
 spin_unlock_irqrestore include/linux/spinlock.h:384 [inline]
 __wake_up_common_lock+0x1d0/0x330 kernel/sched/wait.c:122
 __wake_up_sync_key+0x19/0x20 kernel/sched/wait.c:199
 sock_def_readable+0x24e/0x710 net/core/sock.c:2695
 __netlink_sendskb+0xa4/0xd0 net/netlink/af_netlink.c:1264
 netlink_broadcast_deliver net/netlink/af_netlink.c:1388 [inline]
 do_one_broadcast net/netlink/af_netlink.c:1473 [inline]
 netlink_broadcast_filtered+0xeb7/0x1680 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
 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:00007f3f19a4ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3f19a4f6d4 RCX: 0000000000457679
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000008
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004cfc28 R14: 00000000004bfd60 R15: 0000000000000000
Modules linked in:
---[ end trace 2049ae9a4a357ed1 ]---
RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2481 [inline]
RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline]
RIP: 0010:finish_task_switch+0x599/0x900 kernel/sched/core.c:2679
Code: 89 e1 48 c1 e9 03 42 80 3c 39 00 0f 85 a7 01 00 00 4d 8b 24 24 4d 85 e4 0f 84 ad fc ff ff 49 8d 7c 24 10 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 74 a5 e8 5b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00
RSP: 0018:ffff88012b38ef38 EFLAGS: 00010a06
RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022
RDX: 000000000000d5f3 RSI: ffffffff810f036e RDI: dead000000000110
RBP: ffff88012b38f020 R08: ffff88012b386100 R09: ffffed0032897bfc
R10: ffffed0032897bfc R11: ffff8801944bdfe7 R12: dead000000000100
R13: ffff8801c78b6000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f3f19a4f700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f57198000 CR3: 000000018efd4000 CR4: 00000000001426e0