BUG: unable to handle page fault for address: ffffed1800000006
#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: 393 Comm: syz-executor.0 Tainted: G        W         5.15.189-syzkaller-1081280-gf32b52534f1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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: 3a 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 d7 dc 3a ff 48 8b 45 d0 48 39 03
RSP: 0018:ffffc90000f07a00 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffff88c000000030 RCX: dffffc0000000000
RDX: ffffffff819af460 RSI: 1ffff110213216fc RDI: ffff88810c437058
RBP: ffffc90000f07a60 R08: dffffc0000000000 R09: ffffed1021321700
R10: ffffed1021321700 R11: 1ffff110213216ff R12: 1ffff11800000006
R13: ffff888120442be8 R14: ffff88c000000020 R15: ffff88810c4b0e38
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1800000006 CR3: 0000000120446000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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+0xadf/0xb00 mm/interval_tree.c:23
 __remove_shared_vm_struct mm/mmap.c:159 [inline]
 unlink_file_vma+0xd7/0xf0 mm/mmap.c:174
 free_pgtables+0x139/0x280 mm/memory.c:490
 exit_mmap+0x407/0x860 mm/mmap.c:3243
 __mmput+0x93/0x320 kernel/fork.c:1180
 mmput+0x50/0x150 kernel/fork.c:1203
 exit_mm kernel/exit.c:554 [inline]
 do_exit+0x9d2/0x27a0 kernel/exit.c:876
 do_group_exit+0x141/0x310 kernel/exit.c:1003
 __do_sys_exit_group kernel/exit.c:1014 [inline]
 __se_sys_exit_group kernel/exit.c:1012 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1012
 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: 0033:0x7f8400ebc899
Code: Unable to access opcode bytes at RIP 0x7f8400ebc86f.
RSP: 002b:00007fff40b97d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f8400ebc899
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 00361d7af4422288 R09: 0000000000000000
R10: 0000001b30860000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
 </TASK>
Modules linked in:
CR2: ffffed1800000006
---[ end trace 893af97f4539fcd0 ]---
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: 3a 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 d7 dc 3a ff 48 8b 45 d0 48 39 03
RSP: 0018:ffffc90000f07a00 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffff88c000000030 RCX: dffffc0000000000
RDX: ffffffff819af460 RSI: 1ffff110213216fc RDI: ffff88810c437058
RBP: ffffc90000f07a60 R08: dffffc0000000000 R09: ffffed1021321700
R10: ffffed1021321700 R11: 1ffff110213216ff R12: 1ffff11800000006
R13: ffff888120442be8 R14: ffff88c000000020 R15: ffff88810c4b0e38
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1800000006 CR3: 0000000120446000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	3a 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 d7 dc 3a ff       	call   0xff3add10
  39:	48 8b 45 d0          	mov    -0x30(%rbp),%rax
  3d:	48 39 03             	cmp    %rax,(%rbx)