overlayfs: NFS export requires "index=on", falling back to nfs_export=off.
BUG: unable to handle page fault for address: fffffbfff5555559
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 21fff3067 P4D 21fff3067 PUD 21ffb6067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 14629 Comm: syz-executor.1 Tainted: G        W         5.4.38-syzkaller-00003-ge52c85a3140c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:file_inode include/linux/fs.h:1348 [inline]
RIP: 0010:fsnotify_open include/linux/fsnotify.h:266 [inline]
RIP: 0010:do_sys_open+0x3e4/0x7d0 fs/open.c:1111
Code: 00 48 89 5c 24 10 48 8d 7c 24 60 48 89 44 24 08 48 8d 58 20 ba 10 00 00 00 be aa 00 00 00 e8 c3 36 fc ff 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 bd 61 fc ff 44 89 74 24 24 48 8b
RSP: 0018:ffff888188067e00 EFLAGS: 00010a06
RAX: 1ffffffff5555559 RBX: ffffffffaaaaaaca RCX: 0000000000000000
RDX: 0000000000000010 RSI: 00000000000000aa RDI: ffff888188067e70
RBP: ffff888188067f10 R08: dffffc0000000000 R09: ffff888188067e60
R10: ffffed103100cfce R11: 0000000000000000 R12: 000000000010f0c5
R13: ffff8881a5b66600 R14: 0000000000000003 R15: dffffc0000000000
FS:  00007fd087b81700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff5555559 CR3: 00000001cb37c002 CR4: 00000000001606e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c829
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd087b80c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00000000004f6a20 RCX: 000000000045c829
RDX: 0000000000002400 RSI: 00000000001070c5 RDI: 0000000020000080
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000779 R14: 00000000005253ff R15: 00007fd087b816d4
Modules linked in:
CR2: fffffbfff5555559
---[ end trace 8c6fddd062aeb553 ]---
RIP: 0010:file_inode include/linux/fs.h:1348 [inline]
RIP: 0010:fsnotify_open include/linux/fsnotify.h:266 [inline]
RIP: 0010:do_sys_open+0x3e4/0x7d0 fs/open.c:1111
Code: 00 48 89 5c 24 10 48 8d 7c 24 60 48 89 44 24 08 48 8d 58 20 ba 10 00 00 00 be aa 00 00 00 e8 c3 36 fc ff 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 bd 61 fc ff 44 89 74 24 24 48 8b
RSP: 0018:ffff888188067e00 EFLAGS: 00010a06
RAX: 1ffffffff5555559 RBX: ffffffffaaaaaaca RCX: 0000000000000000
RDX: 0000000000000010 RSI: 00000000000000aa RDI: ffff888188067e70
RBP: ffff888188067f10 R08: dffffc0000000000 R09: ffff888188067e60
R10: ffffed103100cfce R11: 0000000000000000 R12: 000000000010f0c5
R13: ffff8881a5b66600 R14: 0000000000000003 R15: dffffc0000000000
FS:  00007fd087b81700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff5555559 CR3: 00000001cb37c002 CR4: 00000000001606e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600