general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 1 PID: 14584 Comm: syz.6.2036 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:d_backing_inode include/linux/dcache.h:543 [inline]
RIP: 0010:security_inode_getattr+0x42/0x120 security/security.c:1359
Code: be fd 4c 8d 73 08 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 fc 5b 0e fe 4d 8b 36 49 83 c6 68 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 df 5b 0e fe 4d 8b 36 49 83 c6 0c
RSP: 0018:ffffc9000652f968 EFLAGS: 00010202
RAX: 000000000000000d RBX: ffffc9000652fa60 RCX: 0000000000080000
RDX: ffffc9001da03000 RSI: 0000000000000791 RDI: 0000000000000792
RBP: ffffc9000652fc90 R08: dffffc0000000000 R09: ffffc9000652fb60
R10: 0000000000000000 R11: 0000000000000008 R12: dffffc0000000000
R13: ffffc9000652fb60 R14: 0000000000000068 R15: ffffc9000652fa60
FS:  00007f09cd9e36c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f09cd9e2f98 CR3: 0000000026749000 CR4: 00000000003506e0
DR0: 000000000000007f DR1: 000000000000f96f DR2: 0000000000000000
DR3: 0000000080000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_getattr+0x26/0x3a0 fs/stat.c:158
 ovl_getattr+0x34c/0xe60 fs/overlayfs/inode.c:246
 vfs_statx+0x16e/0x650 fs/stat.c:233
 vfs_fstatat fs/stat.c:267 [inline]
 __do_sys_newfstatat fs/stat.c:437 [inline]
 __se_sys_newfstatat fs/stat.c:431 [inline]
 __x64_sys_newfstatat+0x155/0x1e0 fs/stat.c:431
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f09ccb8efc9
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:00007f09cd9e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f09ccde6090 RCX: 00007f09ccb8efc9
RDX: 0000200000000880 RSI: 0000200000000840 RDI: ffffffffffffff9c
RBP: 00007f09ccc11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f09ccde6128 R14: 00007f09ccde6090 R15: 00007ffd1d265db8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:543 [inline]
RIP: 0010:security_inode_getattr+0x42/0x120 security/security.c:1359
Code: be fd 4c 8d 73 08 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 fc 5b 0e fe 4d 8b 36 49 83 c6 68 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 df 5b 0e fe 4d 8b 36 49 83 c6 0c
RSP: 0018:ffffc9000652f968 EFLAGS: 00010202
RAX: 000000000000000d RBX: ffffc9000652fa60 RCX: 0000000000080000
RDX: ffffc9001da03000 RSI: 0000000000000791 RDI: 0000000000000792
RBP: ffffc9000652fc90 R08: dffffc0000000000 R09: ffffc9000652fb60
R10: 0000000000000000 R11: 0000000000000008 R12: dffffc0000000000
R13: ffffc9000652fb60 R14: 0000000000000068 R15: ffffc9000652fa60
FS:  00007f09cd9e36c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005640f6ecf410 CR3: 0000000026749000 CR4: 00000000003506f0
DR0: 000000000000007f DR1: 000000000000f96f DR2: 0000000000000000
DR3: 0000000080000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	be fd 4c 8d 73       	mov    $0x738d4cfd,%esi
   5:	08 4c 89 f0          	or     %cl,-0x10(%rcx,%rcx,4)
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  12:	74 08                	je     0x1c
  14:	4c 89 f7             	mov    %r14,%rdi
  17:	e8 fc 5b 0e fe       	call   0xfe0e5c18
  1c:	4d 8b 36             	mov    (%r14),%r14
  1f:	49 83 c6 68          	add    $0x68,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 f7             	mov    %r14,%rdi
  34:	e8 df 5b 0e fe       	call   0xfe0e5c18
  39:	4d 8b 36             	mov    (%r14),%r14
  3c:	49 83 c6 0c          	add    $0xc,%r14