Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 5666 Comm: syz.1.84 Not tainted 6.11.0-rc5-next-20240827-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:rb_erase+0x61f/0xe70 lib/rbtree.c:445
Code: 00 49 8d 5f 10 48 89 d8 48 c1 e8 03 48 89 44 24 18 42 80 3c 28 00 74 08 48 89 df e8 7b 56 44 f6 4c 8b 23 4d 89 e6 49 c1 ee 03 <43> 80 3c 2e 00 74 08 4c 89 e7 e8 62 56 44 f6 41 f6 04 24 01 48 89
RSP: 0000:ffffc9000d6af560 EFLAGS: 00010046
RAX: 1ffff1100431841a RBX: ffff8880218c20d0 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b913f8e0 RDI: ffff8880278abec8
RBP: ffff8880218c20c8 R08: ffff8880278ac037 R09: 1ffff11004f15806
R10: dffffc0000000000 R11: ffffed1004f15807 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880218c20c0
FS:  00007fd7ba2d06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd7afa1b000 CR3: 0000000077686000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sched_core_dequeue kernel/sched/core.c:283 [inline]
 dequeue_task+0x34d/0x550 kernel/sched/core.c:2031
 detach_task kernel/sched/fair.c:9368 [inline]
 detach_tasks kernel/sched/fair.c:9504 [inline]
 sched_balance_rq+0x5d5b/0x8590 kernel/sched/fair.c:11648
 sched_balance_domains+0x565/0xa90 kernel/sched/fair.c:12069
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1037
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7fd7b943dc88
Code: 9e fd ff ff 41 8d 34 04 49 8b 47 10 48 39 f0 72 6e 48 63 cd 48 01 c1 49 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 <48> 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 47 0f b6 0c 08 45 84 c9
RSP: 002b:00007fd7ba2cf4a0 EFLAGS: 00000202
RAX: 0000000000e1b108 RBX: 00007fd7ba2cf540 RCX: 00000000000000a4
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007fd7ba2cf5e0
RBP: 0000000000000102 R08: 00007fd7aec00000 R09: 0000000000000000
R10: 0000000000000000 R11: 00007fd7ba2cf550 R12: 0000000000000001
R13: 00007fd7b95fb880 R14: 0000000000000000 R15: 00007fd7ba2cf5e0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:rb_erase+0x61f/0xe70 lib/rbtree.c:445
Code: 00 49 8d 5f 10 48 89 d8 48 c1 e8 03 48 89 44 24 18 42 80 3c 28 00 74 08 48 89 df e8 7b 56 44 f6 4c 8b 23 4d 89 e6 49 c1 ee 03 <43> 80 3c 2e 00 74 08 4c 89 e7 e8 62 56 44 f6 41 f6 04 24 01 48 89
RSP: 0000:ffffc9000d6af560 EFLAGS: 00010046
RAX: 1ffff1100431841a RBX: ffff8880218c20d0 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b913f8e0 RDI: ffff8880278abec8
RBP: ffff8880218c20c8 R08: ffff8880278ac037 R09: 1ffff11004f15806
R10: dffffc0000000000 R11: ffffed1004f15807 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880218c20c0
FS:  00007fd7ba2d06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd7afa1b000 CR3: 0000000077686000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 49 8d             	add    %cl,-0x73(%rcx)
   3:	5f                   	pop    %rdi
   4:	10 48 89             	adc    %cl,-0x77(%rax)
   7:	d8 48 c1             	fmuls  -0x3f(%rax)
   a:	e8 03 48 89 44       	call   0x44894812
   f:	24 18                	and    $0x18,%al
  11:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 7b 56 44 f6       	call   0xf644569b
  20:	4c 8b 23             	mov    (%rbx),%r12
  23:	4d 89 e6             	mov    %r12,%r14
  26:	49 c1 ee 03          	shr    $0x3,%r14
* 2a:	43 80 3c 2e 00       	cmpb   $0x0,(%r14,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 62 56 44 f6       	call   0xf644569b
  39:	41 f6 04 24 01       	testb  $0x1,(%r12)
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89