general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 289 Comm: syz-executor Tainted: G S      W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x1e3/0xb20 lib/rbtree.c:413
Code: 00 fc ff df 48 89 4d c8 80 3c 01 00 74 08 4c 89 f7 e8 31 57 38 ff 4d 8b 3e 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 0e 57 38 ff 41 f6 07 01 4c 89 75
RSP: 0018:ffffc90000a47a18 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888126f0bbe8 RCX: 1ffff11024de177f
RDX: ffffffff819cfe10 RSI: 1ffff110223c4586 RDI: ffff888126f0bbe8
RBP: ffffc90000a47a70 R08: ffff888111e22c53 R09: 1ffff110223c458a
R10: dffffc0000000000 R11: ffffed10223c458b R12: 0000000000000000
R13: ffff888126f0bbf0 R14: ffff888126f0bbf8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1038031d58 CR3: 0000000126500000 CR4: 00000000003506a0
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+0xacf/0xaf0 mm/interval_tree.c:23
 __remove_shared_vm_struct mm/mmap.c:160 [inline]
 unlink_file_vma+0xda/0xf0 mm/mmap.c:175
 free_pgtables+0x139/0x280 mm/memory.c:492
 exit_mmap+0x433/0x8b0 mm/mmap.c:3247
 __mmput+0x92/0x300 kernel/fork.c:1191
 mmput+0x50/0x150 kernel/fork.c:1214
 exit_mm kernel/exit.c:561 [inline]
 do_exit+0xacc/0x29a0 kernel/exit.c:883
 do_group_exit+0x149/0x310 kernel/exit.c:1010
 __do_sys_exit_group kernel/exit.c:1021 [inline]
 __se_sys_exit_group kernel/exit.c:1019 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1019
 x64_sys_call+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6f72e0b1d9
Code: Unable to access opcode bytes at RIP 0x7f6f72e0b1af.
RSP: 002b:00007ffef820e538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f6f72ea1d3d RCX: 00007f6f72e0b1d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000016 R08: 0000000000000000 R09: 00007f6f72ea1ccb
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffef820f7f0
R13: 00007f6f72ea1ccb R14: 000055558389e4e8 R15: 00007ffef82119b0
 </TASK>
Modules linked in:
---[ end trace 67d7e311c392ac3b ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x1e3/0xb20 lib/rbtree.c:413
Code: 00 fc ff df 48 89 4d c8 80 3c 01 00 74 08 4c 89 f7 e8 31 57 38 ff 4d 8b 3e 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 0e 57 38 ff 41 f6 07 01 4c 89 75
RSP: 0018:ffffc90000a47a18 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888126f0bbe8 RCX: 1ffff11024de177f
RDX: ffffffff819cfe10 RSI: 1ffff110223c4586 RDI: ffff888126f0bbe8
RBP: ffffc90000a47a70 R08: ffff888111e22c53 R09: 1ffff110223c458a
R10: dffffc0000000000 R11: ffffed10223c458b R12: 0000000000000000
R13: ffff888126f0bbf0 R14: ffff888126f0bbf8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2dfe68 CR3: 00000001106f0000 CR4: 00000000003506a0
----------------
Code disassembly (best guess):
   0:	00 fc                	add    %bh,%ah
   2:	ff                   	lcall  (bad)
   3:	df 48 89             	fisttps -0x77(%rax)
   6:	4d c8 80 3c 01       	rex.WRB enter $0x3c80,$0x1
   b:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
   f:	89 f7                	mov    %esi,%edi
  11:	e8 31 57 38 ff       	call   0xff385747
  16:	4d 8b 3e             	mov    (%r14),%r15
  19:	4d 89 fc             	mov    %r15,%r12
  1c:	49 c1 ec 03          	shr    $0x3,%r12
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 80 3c 04 00       	cmpb   $0x0,(%r12,%rax,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ff             	mov    %r15,%rdi
  34:	e8 0e 57 38 ff       	call   0xff385747
  39:	41 f6 07 01          	testb  $0x1,(%r15)
  3d:	4c                   	rex.WR
  3e:	89                   	.byte 0x89
  3f:	75                   	.byte 0x75