RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
kasan: GPF could be caused by NULL-ptr deref or user memory access
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
kobject: 'kvm' (000000005faf5847): fill_kobj_path: path = '/devices/virtual/misc/kvm'
general protection fault: 0000 [#1] PREEMPT SMP KASAN
kobject: 'kvm' (000000005faf5847): kobject_uevent_env
CPU: 0 PID: 5284 Comm: syz-executor5 Not tainted 4.19.0-rc4+ #147
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 1b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00
RSP: 0018:ffff88019944f058 EFLAGS: 00010a06
RAX: 0000000000000000 RBX: ffff8801dae2cb40 RCX: 1bd5a00000000022
RDX: 000000000000187d RSI: ffffffff810f036e RDI: dead000000000110
RBP: ffff88019944f140 R08: ffff880195ca0540 R09: fffff520004a4c46
R10: fffff520004a4c46 R11: ffffc90002526237 R12: dead000000000100
R13: ffff88019c288080 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:00000000f5f1eb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000625208 CR3: 00000001d3a4b000 CR4: 00000000001426f0
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x874/0x1ed0 kernel/sched/core.c:3473
 schedule+0xfe/0x460 kernel/sched/core.c:3517
 freezable_schedule include/linux/freezer.h:172 [inline]
 futex_wait_queue_me+0x3f9/0x840 kernel/futex.c:2530
 futex_wait+0x45c/0xa50 kernel/futex.c:2645
 do_futex+0x31a/0x26d0 kernel/futex.c:3528
 __do_compat_sys_futex kernel/futex_compat.c:201 [inline]
 __se_compat_sys_futex kernel/futex_compat.c:175 [inline]
 __ia32_compat_sys_futex+0x3d9/0x5f0 kernel/futex_compat.c:175
 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: 0023:0xf7f22ca9
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:00000000f5f1e12c EFLAGS: 00000292 ORIG_RAX: 00000000000000f0
RAX: ffffffffffffffda RBX: 00000000083500a8 RCX: 0000000000000080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000083500ac
RBP: 00000000f5f1e228 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace e90fcad88c33c288 ]---
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
kobject: 'loop4' (0000000018ce58f9): kobject_uevent_env
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 1b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00
kobject: 'loop4' (0000000018ce58f9): fill_kobj_path: path = '/devices/virtual/block/loop4'
RSP: 0018:ffff88019944f058 EFLAGS: 00010a06
RAX: 0000000000000000 RBX: ffff8801dae2cb40 RCX: 1bd5a00000000022
RDX: 000000000000187d RSI: ffffffff810f036e RDI: dead000000000110
RBP: ffff88019944f140 R08: ffff880195ca0540 R09: fffff520004a4c46
R10: fffff520004a4c46 R11: ffffc90002526237 R12: dead000000000100
R13: ffff88019c288080 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:00000000f5f1eb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
kobject: 'kvm' (000000005faf5847): fill_kobj_path: path = '/devices/virtual/misc/kvm'
CR2: 0000000000625208 CR3: 00000001d3a4b000 CR4: 00000000001426f0