Code: 00 00 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb 85 66 2e 0f 1f 84 00 00 00 00 00 90 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc9772d6168 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc97732a1b7
RDX: 0000000000008000 RSI: 0000000000008000 RDI: 00007fc96ee95000
RBP: 00007fc96ee95000 R08: 0000000000000000 R09: 00000000000001ce
R10: 0000000000008000 R11: 0000000000000246 R12: 00007fc9772d66b8
R13: 00007fc9772d6180 R14: 00007fc9772d61c0 R15: 00007fc9773ae788
 </TASK>
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: 17454 Comm: syz-executor278 Not tainted 6.4.0-syzkaller-10096-gdfab92f27c60 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:mas_validate_gaps lib/maple_tree.c:7002 [inline]
RIP: 0010:mt_validate+0x4117/0x5ca0 lib/maple_tree.c:7224
Code: 5f 21 db f6 4d 8d a7 a0 00 00 00 31 db 44 89 f0 48 89 44 24 38 48 8d 1c c3 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 fb d0 33 f7 48 8b 1b 48 89 df 4c 8b
RSP: 0018:ffffc9000d1df7a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffffc9000d1df990 R08: ffffffff8ab0d019 R09: 1ffffffff1d2f9c5
R10: dffffc0000000000 R11: fffffbfff1d2f9c6 R12: ffff888022f7b8a0
R13: ffff888022f7b800 R14: 0000000000000000 R15: ffff888022f7b800
FS:  00007fc9772d6700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000001ea5b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 validate_mm+0xe7/0x500 mm/mmap.c:300
 do_vmi_align_munmap+0x13b1/0x15c0 mm/mmap.c:2561
 do_vmi_munmap+0x24d/0x2d0 mm/mmap.c:2619
 __vm_munmap+0x230/0x450 mm/mmap.c:2899
 __do_sys_munmap mm/mmap.c:2916 [inline]
 __se_sys_munmap mm/mmap.c:2913 [inline]
 __x64_sys_munmap+0x69/0x80 mm/mmap.c:2913
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc97732a1b7
Code: 00 00 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb 85 66 2e 0f 1f 84 00 00 00 00 00 90 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc9772d6168 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc97732a1b7
RDX: 0000000000008000 RSI: 0000000000008000 RDI: 00007fc96ee95000
RBP: 00007fc96ee95000 R08: 0000000000000000 R09: 00000000000001ce
R10: 0000000000008000 R11: 0000000000000246 R12: 00007fc9772d66b8
R13: 00007fc9772d6180 R14: 00007fc9772d61c0 R15: 00007fc9773ae788
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mas_validate_gaps lib/maple_tree.c:7002 [inline]
RIP: 0010:mt_validate+0x4117/0x5ca0 lib/maple_tree.c:7224
Code: 5f 21 db f6 4d 8d a7 a0 00 00 00 31 db 44 89 f0 48 89 44 24 38 48 8d 1c c3 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 fb d0 33 f7 48 8b 1b 48 89 df 4c 8b
RSP: 0018:ffffc9000d1df7a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffffc9000d1df990 R08: ffffffff8ab0d019 R09: 1ffffffff1d2f9c5
R10: dffffc0000000000 R11: fffffbfff1d2f9c6 R12: ffff888022f7b8a0
R13: ffff888022f7b800 R14: 0000000000000000 R15: ffff888022f7b800
FS:  00007fc9772d6700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000001ea5b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	48 c7 c2 b8 ff ff ff 	mov    $0xffffffffffffffb8,%rdx
   9:	f7 d8                	neg    %eax
   b:	64 89 02             	mov    %eax,%fs:(%rdx)
   e:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  15:	eb 85                	jmp    0xffffff9c
  17:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
  1e:	00 00 00
  21:	90                   	nop
  22:	b8 0b 00 00 00       	mov    $0xb,%eax
  27:	0f 05                	syscall
* 29:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  2f:	73 01                	jae    0x32
  31:	c3                   	retq
  32:	48 c7 c1 b8 ff ff ff 	mov    $0xffffffffffffffb8,%rcx
  39:	f7 d8                	neg    %eax
  3b:	64 89 01             	mov    %eax,%fs:(%rcx)
  3e:	48                   	rex.W