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: 16186 Comm: syz-executor5 Not tainted 4.19.0-rc4+ #248
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
RSP: 0018:ffff8801d9b67198 EFLAGS: 00010a06
RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022
RDX: 0000000000000237 RSI: ffffffff810f036e RDI: dead000000000110
RBP: ffff8801d9b67280 R08: ffff88018fd0c180 R09: fffff52000337a46
R10: fffff52000337a46 R11: ffffc900019bd237 R12: dead000000000100
R13: ffff88019cf725c0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fe303185700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32725000 CR3: 00000001cb574000 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
 try_to_wake_up+0x10a/0x12f0 kernel/sched/core.c:2055
 wake_up_process kernel/sched/core.c:2123 [inline]
 wake_up_q+0xa4/0x100 kernel/sched/core.c:441
 futex_wake+0x61f/0x760 kernel/futex.c:1556
 do_futex+0x2e4/0x26d0 kernel/futex.c:3533
 __do_sys_futex kernel/futex.c:3589 [inline]
 __se_sys_futex kernel/futex.c:3557 [inline]
 __x64_sys_futex+0x472/0x6a0 kernel/futex.c:3557
 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:00007fe303184cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000072bfa8 RCX: 0000000000457679
RDX: 0000000000000007 RSI: 0000000000000081 RDI: 000000000072bfac
RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bfac
R13: 0000000000a3fb9f R14: 00007fe3031859c0 R15: 0000000000000001
Modules linked in:
---[ end trace 7bf44a30a9a06924 ]---
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:ffff8801d9b67198 EFLAGS: 00010a06
RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022
RDX: 0000000000000237 RSI: ffffffff810f036e RDI: dead000000000110
RBP: ffff8801d9b67280 R08: ffff88018fd0c180 R09: fffff52000337a46
R10: fffff52000337a46 R11: ffffc900019bd237 R12: dead000000000100
R13: ffff88019cf725c0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fe303185700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop1' (000000002d8b3de7): kobject_uevent_env
CR2: 0000001b32725000 CR3: 00000001cb574000 CR4: 00000000001426e0