BUG: unable to handle page fault for address: ffffed180000000b
#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: 2906 Comm: syz.4.823 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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_insert lib/rbtree.c:215 [inline]
RIP: 0010:__rb_insert_augmented+0x5ff/0x720 lib/rbtree.c:459
Code: 38 ff 4d 89 37 48 8b 7d d0 4c 89 3f 48 85 db 0f 84 a0 00 00 00 4c 8d 63 10 4d 89 e6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 06 00 74 08 4c 89 e7 e8 52 1b 38 ff 48 8b 45 d0 49 39 04
RSP: 0018:ffffc900012af8c0 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff88c000000048 RCX: dffffc0000000000
RDX: ffffc90005b6b000 RSI: 000000000001163d RDI: ffff88811ec6fd10
RBP: ffffc900012af920 R08: ffff888113615887 R09: ffff888113615878
R10: dffffc0000000000 R11: ffffed10226c2b11 R12: ffff88c000000058
R13: 1ffff110239f44c4 R14: 1ffff1180000000b R15: ffff88811c3dfbe8
FS:  00007f9ef65146c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed180000000b CR3: 000000011e286000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
 <TASK>
 rb_insert_augmented include/linux/rbtree_augmented.h:50 [inline]
 vma_interval_tree_insert_after+0x2a1/0x2b0 mm/interval_tree.c:57
 dup_mmap kernel/fork.c:632 [inline]
 dup_mm kernel/fork.c:1522 [inline]
 copy_mm+0xb2d/0x13c0 kernel/fork.c:1574
 copy_process+0x117c/0x3250 kernel/fork.c:2348
 kernel_clone+0x233/0x960 kernel/fork.c:2737
 __do_sys_clone kernel/fork.c:2863 [inline]
 __se_sys_clone kernel/fork.c:2847 [inline]
 __x64_sys_clone+0x198/0x210 kernel/fork.c:2847
 x64_sys_call+0x41f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
 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: 0033:0x7f9ef7afb819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9ef6513fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f9ef7d75180 RCX: 00007f9ef7afb819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007f9ef7b91c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f9ef7d75218 R14: 00007f9ef7d75180 R15: 00007fffa7967128
 </TASK>
Modules linked in:
CR2: ffffed180000000b
---[ end trace 674b0bd46917fcc6 ]---
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_insert lib/rbtree.c:215 [inline]
RIP: 0010:__rb_insert_augmented+0x5ff/0x720 lib/rbtree.c:459
Code: 38 ff 4d 89 37 48 8b 7d d0 4c 89 3f 48 85 db 0f 84 a0 00 00 00 4c 8d 63 10 4d 89 e6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 06 00 74 08 4c 89 e7 e8 52 1b 38 ff 48 8b 45 d0 49 39 04
RSP: 0018:ffffc900012af8c0 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff88c000000048 RCX: dffffc0000000000
RDX: ffffc90005b6b000 RSI: 000000000001163d RDI: ffff88811ec6fd10
RBP: ffffc900012af920 R08: ffff888113615887 R09: ffff888113615878
R10: dffffc0000000000 R11: ffffed10226c2b11 R12: ffff88c000000058
R13: 1ffff110239f44c4 R14: 1ffff1180000000b R15: ffff88811c3dfbe8
FS:  00007f9ef65146c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed180000000b CR3: 000000011e286000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	38 ff                	cmp    %bh,%bh
   2:	4d 89 37             	mov    %r14,(%r15)
   5:	48 8b 7d d0          	mov    -0x30(%rbp),%rdi
   9:	4c 89 3f             	mov    %r15,(%rdi)
   c:	48 85 db             	test   %rbx,%rbx
   f:	0f 84 a0 00 00 00    	je     0xb5
  15:	4c 8d 63 10          	lea    0x10(%rbx),%r12
  19:	4d 89 e6             	mov    %r12,%r14
  1c:	49 c1 ee 03          	shr    $0x3,%r14
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 80 3c 06 00       	cmpb   $0x0,(%r14,%rax,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 52 1b 38 ff       	call   0xff381b8b
  39:	48 8b 45 d0          	mov    -0x30(%rbp),%rax
  3d:	49                   	rex.WB
  3e:	39                   	.byte 0x39
  3f:	04                   	.byte 0x4