general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 3079 Comm: syz.6.766 Not tainted 5.15.178-syzkaller-00013-g7d1f9b5c2ff5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:165 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:255 [inline]
RIP: 0010:__rb_erase_color+0x10e/0xa60 lib/rbtree.c:413
Code: 89 ff e8 f5 75 2a ff 4c 8b 6d d0 4d 89 2f 4c 89 eb 48 83 cb 01 4c 8b 7d c0 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ff e8 c4 75 2a ff 49 89 1f 4c 89 eb 48 c1
RSP: 0018:ffffc9000134f7a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888105dbf3d1 RCX: dffffc0000000000
RDX: ffffffff81a59790 RSI: ffff8881092f7250 RDI: ffff888105dbf3d0
RBP: ffffc9000134f800 R08: ffffffff81a57850 R09: ffffed102125ee4e
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102d6c01c7
R13: ffff888105dbf3d0 R14: ffff88816b600e38 R15: 0000000000000000
FS:  00007fd39eef16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001742f3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rb_erase_augmented include/linux/rbtree_augmented.h:305 [inline]
 rb_erase_augmented_cached include/linux/rbtree_augmented.h:314 [inline]
 vma_interval_tree_remove+0xb82/0xba0 mm/interval_tree.c:23
 __remove_shared_vm_struct mm/mmap.c:159 [inline]
 unlink_file_vma+0xd9/0xf0 mm/mmap.c:174
 free_pgtables+0x13f/0x280 mm/memory.c:490
 exit_mmap+0x47c/0x990 mm/mmap.c:3235
 __mmput+0x95/0x310 kernel/fork.c:1180
 mmput+0x5b/0x170 kernel/fork.c:1203
 copy_process+0x25d9/0x3290 kernel/fork.c:2524
 kernel_clone+0x21e/0x9e0 kernel/fork.c:2661
 __do_sys_clone kernel/fork.c:2787 [inline]
 __se_sys_clone kernel/fork.c:2771 [inline]
 __x64_sys_clone+0x23f/0x290 kernel/fork.c:2771
 x64_sys_call+0x1b0/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fd3a08a8169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd39eef0fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fd3a0ac1080 RCX: 00007fd3a08a8169
RDX: 0000000000000000 RSI: 0000000000009000 RDI: 0000000004021400
RBP: 00007fd3a09292a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd3a0ac1080 R15: 00007fff4b062738
 </TASK>
Modules linked in:
---[ end trace 69562f1af014ed42 ]---
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:165 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:255 [inline]
RIP: 0010:__rb_erase_color+0x10e/0xa60 lib/rbtree.c:413
Code: 89 ff e8 f5 75 2a ff 4c 8b 6d d0 4d 89 2f 4c 89 eb 48 83 cb 01 4c 8b 7d c0 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ff e8 c4 75 2a ff 49 89 1f 4c 89 eb 48 c1
RSP: 0018:ffffc9000134f7a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888105dbf3d1 RCX: dffffc0000000000
RDX: ffffffff81a59790 RSI: ffff8881092f7250 RDI: ffff888105dbf3d0
RBP: ffffc9000134f800 R08: ffffffff81a57850 R09: ffffed102125ee4e
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102d6c01c7
R13: ffff888105dbf3d0 R14: ffff88816b600e38 R15: 0000000000000000
FS:  00007fd39eef16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557684d4a8 CR3: 00000001742f3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	89 ff                	mov    %edi,%edi
   2:	e8 f5 75 2a ff       	call   0xff2a75fc
   7:	4c 8b 6d d0          	mov    -0x30(%rbp),%r13
   b:	4d 89 2f             	mov    %r13,(%r15)
   e:	4c 89 eb             	mov    %r13,%rbx
  11:	48 83 cb 01          	or     $0x1,%rbx
  15:	4c 8b 7d c0          	mov    -0x40(%rbp),%r15
  19:	4c 89 f8             	mov    %r15,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 c4 75 2a ff       	call   0xff2a75fc
  38:	49 89 1f             	mov    %rbx,(%r15)
  3b:	4c 89 eb             	mov    %r13,%rbx
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1