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: 5381 Comm: syz.2.18 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_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 6e 58 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 41 58 44 f6 48 89 2b 4c 89 fd 48
RSP: 0018:ffffc9000485f820 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b913f8e0 RDI: ffff88807ca102c8
RBP: ffff88807ca13ec1 R08: ffff88807ca10007 R09: 1ffff1100f942000
R10: dffffc0000000000 R11: ffffed100f942001 R12: ffff88807ca13ec0
R13: dffffc0000000000 R14: 1ffff1100f9427d8 R15: ffff88807ca13ec0
FS:  00005555943de500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b328ffff8 CR3: 000000001fd3e000 CR4: 00000000003526f0
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
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6826
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1178
 __down_write_common kernel/locking/rwsem.c:1306 [inline]
 __down_write_killable kernel/locking/rwsem.c:1320 [inline]
 down_write_killable+0x1d0/0x260 kernel/locking/rwsem.c:1592
 mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline]
 vm_mmap_pgoff+0x17c/0x3d0 mm/util.c:586
 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: 0033:0x7f8d43779eb3
Code: f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 ca 41 f7 c1 ff 0f 00 00 75 14 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 25 c3 0f 1f 40 00 48 c7 c0 a8 ff ff ff 64 c7
RSP: 002b:00007ffe59893fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f8d41a006c0 RCX: 00007f8d43779eb3
RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffe59894110
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
 </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 6e 58 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 41 58 44 f6 48 89 2b 4c 89 fd 48
RSP: 0018:ffffc9000485f820 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b913f8e0 RDI: ffff88807ca102c8
RBP: ffff88807ca13ec1 R08: ffff88807ca10007 R09: 1ffff1100f942000
R10: dffffc0000000000 R11: ffffed100f942001 R12: ffff88807ca13ec0
R13: dffffc0000000000 R14: 1ffff1100f9427d8 R15: ffff88807ca13ec0
FS:  00005555943de500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b328ffff8 CR3: 000000001fd3e000 CR4: 00000000003526f0
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 6e 58 44 f6       	call   0xf644587a
   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 41 58 44 f6       	call   0xf644587a
  39:	48 89 2b             	mov    %rbp,(%rbx)
  3c:	4c 89 fd             	mov    %r15,%rbp
  3f:	48                   	rex.W