general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 1 PID: 305 Comm: syz-executor269 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline]
RIP: 0010:security_inode_getattr+0x47/0x140 security/security.c:1360
Code: 37 ff 4c 8d 73 08 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 07 82 7d ff 4d 8b 36 49 83 c6 30 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 ea 81 7d ff 4d 8b 36 49 83 c6 0c
RSP: 0018:ffffc90000e67040 EFLAGS: 00010206
RAX: 0000000000000006 RBX: ffffc90000e67410 RCX: ffff888110080000
RDX: 0000000000000000 RSI: ffffc90000e67420 RDI: ffffc90000e67410
RBP: ffffc90000e67068 R08: ffffc90000e6741f R09: ffffc90000e67410
R10: dffffc0000000000 R11: fffff520001cce84 R12: ffffc90000e67410
R13: dffffc0000000000 R14: 0000000000000030 R15: ffff88810c05a110
FS:  00005555741b1480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002000 CR3: 0000000125cf8000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_getattr+0x29/0x310 fs/stat.c:158
 ovl_copy_up_one fs/overlayfs/copy_up.c:973 [inline]
 ovl_copy_up_flags+0x468/0x26e0 fs/overlayfs/copy_up.c:1059
 ovl_maybe_copy_up+0x160/0x190 fs/overlayfs/copy_up.c:1091
 ovl_open+0x104/0x2e0 fs/overlayfs/file.c:155
 do_dentry_open+0x885/0x11f0 fs/open.c:884
 vfs_open fs/open.c:1017 [inline]
 dentry_open+0xbb/0x100 fs/open.c:1033
 file_open+0x2a4/0x680 fs/incfs/vfs.c:1503
 do_dentry_open+0x885/0x11f0 fs/open.c:884
 vfs_open+0x73/0x80 fs/open.c:1017
 do_open fs/namei.c:3633 [inline]
 path_openat+0x2699/0x2f30 fs/namei.c:3790
 do_filp_open+0x1ee/0x420 fs/namei.c:3817
 do_sys_openat2+0x15e/0x820 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_openat fs/open.c:1375 [inline]
 __se_sys_openat fs/open.c:1370 [inline]
 __x64_sys_openat+0x136/0x160 fs/open.c:1370
 x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd4dcb30579
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffb2b77a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0032656c69662f30 RCX: 00007fd4dcb30579
RDX: 0000000000020400 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007fffb2b77a88 R08: 00007fd4dcb15190 R09: 00007fd4dcb15190
R10: 00000000000000b6 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 00007fd4dcbb7ca0 R15: 0000000000000002
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline]
RIP: 0010:security_inode_getattr+0x47/0x140 security/security.c:1360
Code: 37 ff 4c 8d 73 08 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 07 82 7d ff 4d 8b 36 49 83 c6 30 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 ea 81 7d ff 4d 8b 36 49 83 c6 0c
RSP: 0018:ffffc90000e67040 EFLAGS: 00010206
RAX: 0000000000000006 RBX: ffffc90000e67410 RCX: ffff888110080000
RDX: 0000000000000000 RSI: ffffc90000e67420 RDI: ffffc90000e67410
RBP: ffffc90000e67068 R08: ffffc90000e6741f R09: ffffc90000e67410
R10: dffffc0000000000 R11: fffff520001cce84 R12: ffffc90000e67410
R13: dffffc0000000000 R14: 0000000000000030 R15: ffff88810c05a110
FS:  00005555741b1480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002000 CR3: 0000000125cf8000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	ff 4c 8d 73          	decl   0x73(%rbp,%rcx,4)
   4:	08 4c 89 f0          	or     %cl,-0x10(%rcx,%rcx,4)
   8:	48 c1 e8 03          	shr    $0x3,%rax
   c:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  11:	74 08                	je     0x1b
  13:	4c 89 f7             	mov    %r14,%rdi
  16:	e8 07 82 7d ff       	call   0xff7d8222
  1b:	4d 8b 36             	mov    (%r14),%r14
  1e:	49 83 c6 30          	add    $0x30,%r14
  22:	4c 89 f0             	mov    %r14,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 f7             	mov    %r14,%rdi
  33:	e8 ea 81 7d ff       	call   0xff7d8222
  38:	4d 8b 36             	mov    (%r14),%r14
  3b:	49 83 c6 0c          	add    $0xc,%r14