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: 13264 Comm: syz.9.4017 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x1e6/0xaf0 lib/rbtree.c:413
Code: 00 fc ff df 48 89 4d c0 80 3c 01 00 74 08 48 89 df e8 be 4e 38 ff 4c 8b 2b 4d 89 ef 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 ef e8 9b 4e 38 ff 41 f6 45 00 01 48 89
RSP: 0018:ffffc90000c4f7c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8881431e4880 RCX: 1ffff1102863c910
RDX: ffffffff819c9b50 RSI: 1ffff110223bde4a RDI: ffff8881431e4870
RBP: ffffc90000c4f820 R08: ffff888111def26f R09: 1ffff110223bde4d
R10: dffffc0000000000 R11: ffffed10223bde4e R12: 1ffff1102863c911
R13: 0000000000000000 R14: ffff8881431e4870 R15: 0000000000000000
FS:  00007fd17794b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffffa CR3: 000000010f0e5000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
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
 copy_process+0x25ec/0x3250 kernel/fork.c:2600
 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: 0033:0x7fd178eeecb9
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:00007fd17794afd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fd179169fa0 RCX: 00007fd178eeecb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000640c7000
RBP: 00007fd178f5cbf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fd17916a038 R14: 00007fd179169fa0 R15: 00007ffe4d23a618
 </TASK>
Modules linked in:
---[ end trace 35da7351102f0358 ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x1e6/0xaf0 lib/rbtree.c:413
Code: 00 fc ff df 48 89 4d c0 80 3c 01 00 74 08 48 89 df e8 be 4e 38 ff 4c 8b 2b 4d 89 ef 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 ef e8 9b 4e 38 ff 41 f6 45 00 01 48 89
RSP: 0018:ffffc90000c4f7c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8881431e4880 RCX: 1ffff1102863c910
RDX: ffffffff819c9b50 RSI: 1ffff110223bde4a RDI: ffff8881431e4870
RBP: ffffc90000c4f820 R08: ffff888111def26f R09: 1ffff110223bde4d
R10: dffffc0000000000 R11: ffffed10223bde4e R12: 1ffff1102863c911
R13: 0000000000000000 R14: ffff8881431e4870 R15: 0000000000000000
FS:  00007fd17794b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffffa CR3: 000000010f0e5000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	00 fc                	add    %bh,%ah
   2:	ff                   	lcall  (bad)
   3:	df 48 89             	fisttps -0x77(%rax)
   6:	4d c0 80 3c 01 00 74 	rex.WRB rolb $0x8,0x7400013c(%r8)
   d:	08
   e:	48 89 df             	mov    %rbx,%rdi
  11:	e8 be 4e 38 ff       	call   0xff384ed4
  16:	4c 8b 2b             	mov    (%rbx),%r13
  19:	4d 89 ef             	mov    %r13,%r15
  1c:	49 c1 ef 03          	shr    $0x3,%r15
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 80 3c 07 00       	cmpb   $0x0,(%r15,%rax,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 9b 4e 38 ff       	call   0xff384ed4
  39:	41 f6 45 00 01       	testb  $0x1,0x0(%r13)
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89