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: 3 Comm:  Not tainted 4.20.0+ #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:____rb_erase_color lib/rbtree.c:370 [inline]
RIP: 0010:rb_erase+0x60b/0x3550 lib/rbtree.c:462
Code: 49 89 c4 e9 c5 fe ff ff 4d 8d 44 24 10 4c 89 c0 48 c1 e8 03 80 3c 18 00 0f 85 2b 21 00 00 4d 8b 74 24 10 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 0f 85 4c 21 00 00 49 8b 06 4d 8d 4e 08 4c 89 c9 48 c1
RSP: 0018:ffff8880ae707698 EFLAGS: 00010002
RAX: 0d7c52ec7d096de0 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 1ffff11015ce0edb RSI: ffffed1015ce0f07 RDI: ffff8880a941f468
RBP: ffff8880ae707c00 R08: ffff8880a941f470 R09: ffff8880ae726630
R10: fffffbfff16d4c6d R11: ffffffff8b6a636b R12: ffff8880a941f460
R13: ffff8880ae725e00 R14: 6be29763e84b6f00 R15: ffff8880ae707bd8
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000017757d0 CR3: 00000000894e9000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 timerqueue_del+0x86/0x150 lib/timerqueue.c:87
 __remove_hrtimer+0xa8/0x1c0 kernel/time/hrtimer.c:975
 __run_hrtimer kernel/time/hrtimer.c:1371 [inline]
 __hrtimer_run_queues+0x311/0x1050 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
 smp_apic_timer_interrupt+0x18d/0x760 arch/x86/kernel/apic/apic.c:1060
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
Modules linked in:
---[ end trace cd9b0f8cd1967945 ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:370 [inline]
RIP: 0010:rb_erase+0x60b/0x3550 lib/rbtree.c:462
Code: 49 89 c4 e9 c5 fe ff ff 4d 8d 44 24 10 4c 89 c0 48 c1 e8 03 80 3c 18 00 0f 85 2b 21 00 00 4d 8b 74 24 10 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 0f 85 4c 21 00 00 49 8b 06 4d 8d 4e 08 4c 89 c9 48 c1
RSP: 0018:ffff8880ae707698 EFLAGS: 00010002
RAX: 0d7c52ec7d096de0 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 1ffff11015ce0edb RSI: ffffed1015ce0f07 RDI: ffff8880a941f468
RBP: ffff8880ae707c00 R08: ffff8880a941f470 R09: ffff8880ae726630
R10: fffffbfff16d4c6d R11: ffffffff8b6a636b R12: ffff8880a941f460
R13: ffff8880ae725e00 R14: 6be29763e84b6f00 R15: ffff8880ae707bd8
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000017757d0 CR3: 00000000894e9000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400