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: 5415 Comm: syz.3.21 Not tainted 6.11.0-rc4-next-20240823-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:191 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:255 [inline]
RIP: 0010:rb_erase+0x530/0xe70 lib/rbtree.c:445
Code: 00 00 74 08 4c 89 ef e8 de c5 44 f6 4d 89 7d 00 49 8d 6f 01 48 8b 5c 24 08 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 80 3c 28 00 74 08 48 89 df e8 b1 c5 44 f6 48 89 2b 4c 89 fd 48
RSP: 0018:ffffc9000905f940 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b903f860 RDI: ffff888073fadcc8
RBP: ffff88802f7e20c1 R08: ffff888073fada07 R09: 1ffff1100e7f5b40
R10: dffffc0000000000 R11: ffffed100e7f5b41 R12: ffff88802f7e20c0
R13: dffffc0000000000 R14: 1ffff11005efc418 R15: ffff88802f7e20c0
FS:  0000555594c30500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32502ff8 CR3: 0000000058e2e000 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
 block_task kernel/sched/core.c:2079 [inline]
 __schedule+0x5d9/0x4b30 kernel/sched/core.c:6627
 __schedule_loop kernel/sched/core.c:6754 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6769
 do_nanosleep+0x197/0x600 kernel/time/hrtimer.c:2032
 hrtimer_nanosleep+0x21f/0x480 kernel/time/hrtimer.c:2085
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
 __se_sys_clock_nanosleep+0x32b/0x3c0 kernel/time/posix-timers.c:1388
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f72ba5abf65
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 c6 57 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 1f 58 ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007fff3b05a0b0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007f72ba715f80 RCX: 00007f72ba5abf65
RDX: 00007fff3b05a0f0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f72ba717a80 R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000011515
R13: 00007fff3b05a210 R14: 00007fff3b05a230 R15: ffffffffffffffff
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:191 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:255 [inline]
RIP: 0010:rb_erase+0x530/0xe70 lib/rbtree.c:445
Code: 00 00 74 08 4c 89 ef e8 de c5 44 f6 4d 89 7d 00 49 8d 6f 01 48 8b 5c 24 08 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 80 3c 28 00 74 08 48 89 df e8 b1 c5 44 f6 48 89 2b 4c 89 fd 48
RSP: 0018:ffffc9000905f940 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b903f860 RDI: ffff888073fadcc8
RBP: ffff88802f7e20c1 R08: ffff888073fada07 R09: 1ffff1100e7f5b40
R10: dffffc0000000000 R11: ffffed100e7f5b41 R12: ffff88802f7e20c0
R13: dffffc0000000000 R14: 1ffff11005efc418 R15: ffff88802f7e20c0
FS:  0000555594c30500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32502ff8 CR3: 0000000058e2e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	74 08                	je     0xc
   4:	4c 89 ef             	mov    %r13,%rdi
   7:	e8 de c5 44 f6       	call   0xf644c5ea
   c:	4d 89 7d 00          	mov    %r15,0x0(%r13)
  10:	49 8d 6f 01          	lea    0x1(%r15),%rbp
  14:	48 8b 5c 24 08       	mov    0x8(%rsp),%rbx
  19:	48 89 d8             	mov    %rbx,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
  27:	fc ff df
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 b1 c5 44 f6       	call   0xf644c5ea
  39:	48 89 2b             	mov    %rbp,(%rbx)
  3c:	4c 89 fd             	mov    %r15,%rbp
  3f:	48                   	rex.W