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: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc4-next-20240822-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_color+0x2d7/0xa30 lib/rbtree.c:413
Code: 73 02 00 00 49 8d 5c 24 10 48 89 dd 48 c1 ed 03 42 80 7c 35 00 00 74 08 48 89 df e8 43 dc 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 2a dc 44 f6 41 f6 45 00 01 48 89
RSP: 0018:ffffc900001a7a00 EFLAGS: 00010046
RAX: 000000000016e360 RBX: ffff888024313ca0 RCX: dffffc0000000000
RDX: ffffffff81681190 RSI: ffff88805ea1a848 RDI: ffff888024313c90
RBP: 1ffff11004862794 R08: ffffffff901c12ef R09: 1ffffffff203825d
R10: dffffc0000000000 R11: ffffffff81671e10 R12: ffff888024313c90
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555cacf808 CR3: 000000005111a000 CR4: 00000000003506f0
DR0: 0000000000060402 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rb_erase_augmented include/linux/rbtree_augmented.h:331 [inline]
 rb_erase_augmented_cached include/linux/rbtree_augmented.h:340 [inline]
 __dequeue_entity+0x953/0xd30 kernel/sched/fair.c:863
 set_next_entity+0xfe/0x4c0 kernel/sched/fair.c:5559
 set_next_task_fair+0x1dd/0x540 kernel/sched/fair.c:13151
 set_next_task kernel/sched/sched.h:2434 [inline]
 pick_next_task kernel/sched/core.c:6085 [inline]
 __schedule+0x250c/0x4b30 kernel/sched/core.c:6632
 schedule_idle+0x53/0x90 kernel/sched/core.c:6795
 do_idle+0x56a/0x5d0 kernel/sched/idle.c:354
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
 start_secondary+0x102/0x110 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x147
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x2d7/0xa30 lib/rbtree.c:413
Code: 73 02 00 00 49 8d 5c 24 10 48 89 dd 48 c1 ed 03 42 80 7c 35 00 00 74 08 48 89 df e8 43 dc 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 2a dc 44 f6 41 f6 45 00 01 48 89
RSP: 0018:ffffc900001a7a00 EFLAGS: 00010046
RAX: 000000000016e360 RBX: ffff888024313ca0 RCX: dffffc0000000000
RDX: ffffffff81681190 RSI: ffff88805ea1a848 RDI: ffff888024313c90
RBP: 1ffff11004862794 R08: ffffffff901c12ef R09: 1ffffffff203825d
R10: dffffc0000000000 R11: ffffffff81671e10 R12: ffff888024313c90
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555cacf808 CR3: 000000005111a000 CR4: 00000000003506f0
DR0: 0000000000060402 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	73 02                	jae    0x4
   2:	00 00                	add    %al,(%rax)
   4:	49 8d 5c 24 10       	lea    0x10(%r12),%rbx
   9:	48 89 dd             	mov    %rbx,%rbp
   c:	48 c1 ed 03          	shr    $0x3,%rbp
  10:	42 80 7c 35 00 00    	cmpb   $0x0,0x0(%rbp,%r14,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 43 dc 44 f6       	call   0xf644dc63
  20:	4c 8b 2b             	mov    (%rbx),%r13
  23:	4d 89 ef             	mov    %r13,%r15
  26:	49 c1 ef 03          	shr    $0x3,%r15
* 2a:	43 80 3c 37 00       	cmpb   $0x0,(%r15,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 2a dc 44 f6       	call   0xf644dc63
  39:	41 f6 45 00 01       	testb  $0x1,0x0(%r13)
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89