overlayfs: './file1' not a directory
general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 0 PID: 4016 Comm: syz-executor.3 Not tainted 6.0.0-rc7-syzkaller-00239-gb357fd1c2afc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:d_backing_inode include/linux/dcache.h:542 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1343
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 04 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 08 48 8d 7b 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90005637a98 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000000d RSI: ffffffff83bbe9de RDI: 0000000000000068
RBP: ffffc90005637b68 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90005637b68 R14: 0000000000000400 R15: 0000000000000000
FS:  00007ff4b1f79700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000019638c8 CR3: 0000000063d31000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 vfs_getattr+0x22/0x60 fs/stat.c:157
 ovl_getattr+0x927/0xf20 fs/overlayfs/inode.c:246
 vfs_getattr_nosec+0x2b4/0x370 fs/stat.c:123
 vfs_getattr fs/stat.c:160 [inline]
 vfs_statx+0x193/0x390 fs/stat.c:232
 vfs_fstatat+0x8c/0xb0 fs/stat.c:255
 vfs_stat include/linux/fs.h:3278 [inline]
 __do_sys_newstat+0x88/0x110 fs/stat.c:398
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x465159
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff4b1f79188 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 000000000055cfc0 RCX: 0000000000465159
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00000000004af721 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055cfc0
R13: 00007fff69a7804f R14: 00007ff4b1f79300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:542 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1343
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 04 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 08 48 8d 7b 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90005637a98 EFLAGS: 00010212

RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000000d RSI: ffffffff83bbe9de RDI: 0000000000000068
RBP: ffffc90005637b68 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90005637b68 R14: 0000000000000400 R15: 0000000000000000
FS:  00007ff4b1f79700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000019638c8 CR3: 0000000063d31000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	48 89 fa             	mov    %rdi,%rdx
   3:	48 c1 ea 03          	shr    $0x3,%rdx
   7:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   b:	0f 85 04 01 00 00    	jne    0x115
  11:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  18:	fc ff df
  1b:	49 8b 5d 08          	mov    0x8(%r13),%rbx
  1f:	48 8d 7b 68          	lea    0x68(%rbx),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 d7 00 00 00    	jne    0x10b
  34:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  3b:	fc ff df
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b