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: 17624 Comm: syz-executor.2 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:d_backing_inode include/linux/dcache.h:553 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1331
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:ffffc9000c20f628 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000dc3b000
RDX: 000000000000000d RSI: ffffffff839d328e RDI: 0000000000000068
RBP: ffffc9000c20f7f8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff82b32fdb R11: 0000000000000000 R12: ffff88806ae5e080
R13: ffffc9000c20f7f8 R14: 00000000000007ff R15: 0000000000000000
FS:  00007f5a219ee700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005575320a7e68 CR3: 000000007983f000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_getattr+0x22/0x60 fs/stat.c:157
 ovl_copy_up_one+0x133/0x1de0 fs/overlayfs/copy_up.c:935
 ovl_copy_up_flags+0x150/0x1d0 fs/overlayfs/copy_up.c:1017
 ovl_maybe_copy_up+0x140/0x190 fs/overlayfs/copy_up.c:1049
 ovl_open+0xba/0x270 fs/overlayfs/file.c:149
 do_dentry_open+0x4c8/0x11d0 fs/open.c:822
 do_open fs/namei.c:3426 [inline]
 path_openat+0x1c9a/0x2740 fs/namei.c:3559
 do_filp_open+0x1aa/0x400 fs/namei.c:3586
 file_open_name+0x2a8/0x420 fs/open.c:1145
 acct_on+0x78/0x780 kernel/acct.c:207
 __do_sys_acct kernel/acct.c:286 [inline]
 __se_sys_acct kernel/acct.c:273 [inline]
 __x64_sys_acct+0xab/0x1f0 kernel/acct.c:273
 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+0x44/0xae
RIP: 0033:0x4665f9
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:00007f5a219ee188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000440
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffe840e45bf R14: 00007f5a219ee300 R15: 0000000000022000
Modules linked in:
---[ end trace 780e0091559db3ed ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:553 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1331
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:ffffc9000c20f628 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000dc3b000
RDX: 000000000000000d RSI: ffffffff839d328e RDI: 0000000000000068
RBP: ffffc9000c20f7f8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff82b32fdb R11: 0000000000000000 R12: ffff88806ae5e080
R13: ffffc9000c20f7f8 R14: 00000000000007ff R15: 0000000000000000
FS:  00007f5a219ee700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc524305000 CR3: 000000007983f000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
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