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: 9456 Comm: syz-executor Not tainted 5.15.189-syzkaller-00091-gf32b52534f1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 de e2 3a 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 bb e2 3a ff 41 f6 45 00 01 48 89
RSP: 0018:ffffc90000a676c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88810d9db190 RCX: 1ffff11021b3b632
RDX: ffffffff819af460 RSI: 1ffff11021328069 RDI: ffff88810d9db180
RBP: ffffc90000a67720 R08: dffffc0000000000 R09: ffffed102132806d
R10: ffffed102132806d R11: 1ffff1102132806c R12: 1ffff11022ca2bca
R13: 0000000000000000 R14: ffff88810d9db180 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffffa CR3: 0000000124fe6000 CR4: 00000000003506b0
DR0: 0000200000000300 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+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
 get_signal+0x66a/0x1480 kernel/signal.c:2907
 arch_do_signal_or_restart+0xc1/0x10f0 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+0x5a/0xa0 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: 0033:0x7fa646cfde13
Code: Unable to access opcode bytes at RIP 0x7fa646cfdde9.
RSP: 002b:00007ffc29b1a108 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 000000000000030f RCX: 00007fa646cfde13
RDX: 0000000040000000 RSI: 00007ffc29b1a14c RDI: 00000000ffffffff
RBP: 00007ffc29b1a14c R08: 00000000000002c1 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000000fe
R13: 000055555ae94470 R14: 00000000000abc85 R15: 00007ffc29b1a1a0
 </TASK>
Modules linked in:
---[ end trace 328c4c81d3b5ab36 ]---
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 de e2 3a 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 bb e2 3a ff 41 f6 45 00 01 48 89
RSP: 0018:ffffc90000a676c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88810d9db190 RCX: 1ffff11021b3b632
RDX: ffffffff819af460 RSI: 1ffff11021328069 RDI: ffff88810d9db180
RBP: ffffc90000a67720 R08: dffffc0000000000 R09: ffffed102132806d
R10: ffffed102132806d R11: 1ffff1102132806c R12: 1ffff11022ca2bca
R13: 0000000000000000 R14: ffff88810d9db180 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffffa CR3: 0000000121ba5000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	df 48 89             	fisttps -0x77(%rax)
   3:	4d c0 80 3c 01 00 74 	rex.WRB rolb $0x8,0x7400013c(%r8)
   a:	08
   b:	48 89 df             	mov    %rbx,%rdi
   e:	e8 de e2 3a ff       	call   0xff3ae2f1
  13:	4c 8b 2b             	mov    (%rbx),%r13
  16:	4d 89 ef             	mov    %r13,%r15
  19:	49 c1 ef 03          	shr    $0x3,%r15
  1d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  24:	fc ff df
* 27:	41 80 3c 07 00       	cmpb   $0x0,(%r15,%rax,1) <-- trapping instruction
  2c:	74 08                	je     0x36
  2e:	4c 89 ef             	mov    %r13,%rdi
  31:	e8 bb e2 3a ff       	call   0xff3ae2f1
  36:	41 f6 45 00 01       	testb  $0x1,0x0(%r13)
  3b:	48                   	rex.W
  3c:	89                   	.byte 0x89