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: 8900 Comm: syz.6.1070 Not tainted 6.1.139-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:d_backing_inode include/linux/dcache.h:543 [inline]
RIP: 0010:security_inode_getattr+0x42/0x120 security/security.c:1359
Code: bd fd 4c 8d 73 08 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 dc 24 0f 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 bf 24 0f fe 4d 8b 36 49 83 c6 0c
RSP: 0018:ffffc900047bf208 EFLAGS: 00010202
RAX: 000000000000000d RBX: ffffc900047bf5d0 RCX: 0000000000080000
RDX: ffffc9000c839000 RSI: 0000000000000760 RDI: 0000000000000761
RBP: ffffc900047bf7e0 R08: dffffc0000000000 R09: ffffc900047bf5a0
R10: fffff520008f7eb6 R11: 1ffff920008f7eb4 R12: dffffc0000000000
R13: ffffc900047bf5e0 R14: 0000000000000068 R15: ffffc900047bf5d0
FS:  00007f411144e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f411144df98 CR3: 000000005bd39000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_getattr+0x26/0x3a0 fs/stat.c:158
 ovl_copy_up_one fs/overlayfs/copy_up.c:974 [inline]
 ovl_copy_up_flags+0x3cb/0x26c0 fs/overlayfs/copy_up.c:1060
 ovl_maybe_copy_up+0x14f/0x180 fs/overlayfs/copy_up.c:1092
 ovl_open+0xf7/0x2d0 fs/overlayfs/file.c:152
 do_dentry_open+0x7e9/0x10d0 fs/open.c:882
 do_open fs/namei.c:3626 [inline]
 path_openat+0x25c6/0x2e70 fs/namei.c:3783
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
 do_sys_openat2+0x142/0x490 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1345
 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: 0033:0x7f411058e969
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:00007f411144e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f41107b6080 RCX: 00007f411058e969
RDX: 0000000000008002 RSI: 000020000001fb00 RDI: ffffffffffffff9c
RBP: 00007f4110610ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f41107b6080 R15: 00007fff062b1008
 </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: bd fd 4c 8d 73 08 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 dc 24 0f 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 bf 24 0f fe 4d 8b 36 49 83 c6 0c
RSP: 0018:ffffc900047bf208 EFLAGS: 00010202
RAX: 000000000000000d RBX: ffffc900047bf5d0 RCX: 0000000000080000
RDX: ffffc9000c839000 RSI: 0000000000000760 RDI: 0000000000000761
RBP: ffffc900047bf7e0 R08: dffffc0000000000 R09: ffffc900047bf5a0
R10: fffff520008f7eb6 R11: 1ffff920008f7eb4 R12: dffffc0000000000
R13: ffffc900047bf5e0 R14: 0000000000000068 R15: ffffc900047bf5d0
FS:  00007f411144e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e5183cb950 CR3: 000000005bd39000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	bd fd 4c 8d 73       	mov    $0x738d4cfd,%ebp
   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 dc 24 0f fe       	call   0xfe0f24f8
  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 bf 24 0f fe       	call   0xfe0f24f8
  39:	4d 8b 36             	mov    (%r14),%r14
  3c:	49 83 c6 0c          	add    $0xc,%r14