IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
gfs2: not a GFS2 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
------------[ cut here ]------------
gfs2: fsid=trusted.Wverlay.upper: can't read superblock
WARNING: CPU: 1 PID: 7802 at fs/sysfs/dir.c:31 sysfs_warn_dup.cold.4+0x12/0x32 fs/sysfs/dir.c:30
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 7802 Comm: syz-executor.4 Not tainted 4.14.177-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
gfs2: fsid=trusted.Wverlay.upper: can't read superblock: -22
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
 panic+0x1b0/0x358 kernel/panic.c:183
 __warn.cold.8+0x25/0x2c kernel/panic.c:547
 report_bug+0x1a4/0x1f3 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 do_error_trap+0x1bd/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:sysfs_warn_dup.cold.4+0x12/0x32 fs/sysfs/dir.c:30
RSP: 0018:ffff88808be7f738 EFLAGS: 00010282
RAX: 0000000000000048 RBX: ffff88808904e240 RCX: 0000000000000000
RDX: 0000000000000048 RSI: ffffffff86cbeaa0 RDI: ffffed10117cfede
RBP: ffff88808be7f750 R08: ffff8880851a0c68 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000000 R12: ffff8880a667a2a0
R13: ffff88809fad8f80 R14: ffff88821914a300 R15: ffff8880a50b9b50
 sysfs_create_dir_ns+0x108/0x1b0 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:71 [inline]
 kobject_add_internal+0x252/0x7d0 lib/kobject.c:229
 kobject_add_varg lib/kobject.c:364 [inline]
 kobject_init_and_add+0xc8/0x110 lib/kobject.c:436
 gfs2_sys_fs_add+0x185/0x440 fs/gfs2/sys.c:652
 fill_super+0x1235/0x2350 fs/gfs2/ops_fstype.c:1118
 gfs2_mount+0x3f5/0x4bb fs/gfs2/ops_fstype.c:1321
 mount_fs+0x7f/0x269 fs/super.c:1237
 vfs_kern_mount.part.33+0x58/0x3c0 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0x36b/0x26a0 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xb8/0xd0 fs/namespace.c:3072
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45f29a
RSP: 002b:00007f78a4105a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f78a41066d4 RCX: 000000000045f29a
RDX: 00007f78a4105ae0 RSI: 00000000200003c0 RDI: 00007f78a4105b00
RBP: 000000000076bf00 R08: 00007f78a4105b40 R09: 00007f78a4105ae0
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000bde R14: 00000000004cdfcc R15: 000000000076bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..