BUG: unable to handle page fault for address: ffffed1800000010
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23fff2067 P4D 23fff2067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8966 Comm: syz-executor Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__rb_change_child include/linux/rbtree_augmented.h:173 [inline]
RIP: 0010:__rb_rotate_set_parents lib/rbtree.c:81 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:348 [inline]
RIP: 0010:__rb_erase_color+0x7ca/0xaf0 lib/rbtree.c:413
Code: 38 ff 4d 89 27 48 8b 45 d0 48 89 18 4d 85 f6 0f 84 87 00 00 00 49 8d 5e 10 49 89 dc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 48 89 df e8 b7 48 38 ff 48 8b 45 d0 48 39 03
RSP: 0018:ffffc90000e7f6c0 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff88c000000080 RCX: dffffc0000000000
RDX: ffffffff819c9b50 RSI: 1ffff11021321e4a RDI: ffff88811137f3d0
RBP: ffffc90000e7f720 R08: ffff88810990f26f R09: 1ffff11021321e4d
R10: dffffc0000000000 R11: ffffed1021321e4e R12: 1ffff11800000010
R13: ffff88818e496058 R14: ffff88c000000070 R15: ffff888146c3f180
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1800000010 CR3: 00000001450e7000 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+0xadc/0xb00 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:490
 exit_mmap+0x433/0x8b0 mm/mmap.c:3247
 __mmput+0x93/0x320 kernel/fork.c:1180
 mmput+0x50/0x150 kernel/fork.c:1203
 exit_mm kernel/exit.c:554 [inline]
 do_exit+0x9f2/0x27e0 kernel/exit.c:876
 do_group_exit+0x141/0x310 kernel/exit.c:1003
 get_signal+0x66a/0x1480 kernel/signal.c:2907
 arch_do_signal_or_restart+0xdf/0x11c0 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0e32772ed7
Code: Unable to access opcode bytes at RIP 0x7f0e32772ead.
RSP: 002b:00007ffd84d640f0 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000555559714500 RCX: 00007f0e32772ed7
RDX: 0000000040000000 RSI: 00007ffd84d6414c RDI: ffffffffffffffff
RBP: 00007ffd84d6414c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffd84d643a8 R15: 0000000000000000
 </TASK>
Modules linked in:
CR2: ffffed1800000010
---[ end trace 0e1c9faac1ef7649 ]---
RIP: 0010:__rb_change_child include/linux/rbtree_augmented.h:173 [inline]
RIP: 0010:__rb_rotate_set_parents lib/rbtree.c:81 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:348 [inline]
RIP: 0010:__rb_erase_color+0x7ca/0xaf0 lib/rbtree.c:413
Code: 38 ff 4d 89 27 48 8b 45 d0 48 89 18 4d 85 f6 0f 84 87 00 00 00 49 8d 5e 10 49 89 dc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 48 89 df e8 b7 48 38 ff 48 8b 45 d0 48 39 03
RSP: 0018:ffffc90000e7f6c0 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff88c000000080 RCX: dffffc0000000000
RDX: ffffffff819c9b50 RSI: 1ffff11021321e4a RDI: ffff88811137f3d0
RBP: ffffc90000e7f720 R08: ffff88810990f26f R09: 1ffff11021321e4d
R10: dffffc0000000000 R11: ffffed1021321e4e R12: 1ffff11800000010
R13: ffff88818e496058 R14: ffff88c000000070 R15: ffff888146c3f180
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1800000010 CR3: 00000001450e7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	38 ff                	cmp    %bh,%bh
   2:	4d 89 27             	mov    %r12,(%r15)
   5:	48 8b 45 d0          	mov    -0x30(%rbp),%rax
   9:	48 89 18             	mov    %rbx,(%rax)
   c:	4d 85 f6             	test   %r14,%r14
   f:	0f 84 87 00 00 00    	je     0x9c
  15:	49 8d 5e 10          	lea    0x10(%r14),%rbx
  19:	49 89 dc             	mov    %rbx,%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:	48 89 df             	mov    %rbx,%rdi
  34:	e8 b7 48 38 ff       	call   0xff3848f0
  39:	48 8b 45 d0          	mov    -0x30(%rbp),%rax
  3d:	48 39 03             	cmp    %rax,(%rbx)