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: 476 Comm: syz.0.15 Not tainted 5.15.167-syzkaller-1075712-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__d_entry_type include/linux/dcache.h:404 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:409 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:455 [inline]
RIP: 0010:d_is_positive include/linux/dcache.h:465 [inline]
RIP: 0010:filename_create+0x2d8/0x530 fs/namei.c:3842
Code: 92 00 00 00 4c 89 7c 24 28 45 84 e4 0f 95 c0 83 7c 24 14 00 0f 94 c3 20 c3 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 1f 02 00 00 45 8b 26 41 bd 00 00 70 00 be
RSP: 0018:ffffc90000b37d20 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 1ffff92000166f00 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000
RBP: ffffc90000b37e10 R08: ffffffff81c0b938 R09: ffffed10252b0a2e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000600 R14: 0000000000000005 R15: ffffc90000b37e80
FS:  00007f2b8843e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 00000001183f7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_mkdirat+0xbd/0x450 fs/namei.c:4080
 __do_sys_mkdir fs/namei.c:4110 [inline]
 __se_sys_mkdir fs/namei.c:4108 [inline]
 __x64_sys_mkdir+0x6e/0x80 fs/namei.c:4108
 x64_sys_call+0x26d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:84
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2b889d5ad9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2b8843e048 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f2b88b64038 RCX: 00007f2b889d5ad9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f2b88a44e5d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f2b88b64038 R15: 00007fffe0ece8d8
 </TASK>
Modules linked in:
---[ end trace 81a350c44ac46f89 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:404 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:409 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:455 [inline]
RIP: 0010:d_is_positive include/linux/dcache.h:465 [inline]
RIP: 0010:filename_create+0x2d8/0x530 fs/namei.c:3842
Code: 92 00 00 00 4c 89 7c 24 28 45 84 e4 0f 95 c0 83 7c 24 14 00 0f 94 c3 20 c3 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 1f 02 00 00 45 8b 26 41 bd 00 00 70 00 be
RSP: 0018:ffffc90000b37d20 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 1ffff92000166f00 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000
RBP: ffffc90000b37e10 R08: ffffffff81c0b938 R09: ffffed10252b0a2e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000600 R14: 0000000000000005 R15: ffffc90000b37e80
FS:  00007f2b8843e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 00000001183f7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	92                   	xchg   %eax,%edx
   1:	00 00                	add    %al,(%rax)
   3:	00 4c 89 7c          	add    %cl,0x7c(%rcx,%rcx,4)
   7:	24 28                	and    $0x28,%al
   9:	45 84 e4             	test   %r12b,%r12b
   c:	0f 95 c0             	setne  %al
   f:	83 7c 24 14 00       	cmpl   $0x0,0x14(%rsp)
  14:	0f 94 c3             	sete   %bl
  17:	20 c3                	and    %al,%bl
  19:	4c 89 f0             	mov    %r14,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	0f b6 04 08          	movzbl (%rax,%rcx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 1f 02 00 00    	jne    0x255
  36:	45 8b 26             	mov    (%r14),%r12d
  39:	41 bd 00 00 70 00    	mov    $0x700000,%r13d
  3f:	be                   	.byte 0xbe