8021q: adding VLAN 0 to HW filter on device batadv0
IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
audit: type=1804 audit(1575254009.889:41): pid=6698 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir110500347/syzkaller.i78P6V/0/file0/file0" dev="sda1" ino=16527 res=1
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IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready
WARNING: CPU: 0 PID: 6698 at fs/overlayfs/dir.c:523 ovl_create_or_link+0x545/0x13b0 fs/overlayfs/dir.c:523
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6698 Comm: syz-executor.2 Not tainted 4.14.157-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
 panic+0x1b0/0x358 kernel/panic.c:183
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
 __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
8021q: adding VLAN 0 to HW filter on device batadv0
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
kobject: 'vlan0' (ffff88808b3ccb00): kobject_add_internal: parent: 'mesh', set: '<NULL>'
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:ovl_create_or_link+0x545/0x13b0 fs/overlayfs/dir.c:523
RSP: 0018:ffff88808bbdfb00 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff8880878ff3b0 RCX: ffff88809a327544
RDX: 1ffff11010f1fe77 RSI: ffff8880a11f4ca0 RDI: ffff8880878ff3b8
RBP: ffff88808bbdfcb8 R08: ffff8880a11f4cc0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 1ffff1101177bf6e R15: ffff88807f163310
 ovl_link+0x151/0x19d fs/overlayfs/dir.c:614
 vfs_link+0x646/0xa10 fs/namei.c:4261
 SYSC_linkat fs/namei.c:4329 [inline]
 SyS_linkat fs/namei.c:4285 [inline]
 SYSC_link fs/namei.c:4352 [inline]
 SyS_link+0x2f8/0x4b0 fs/namei.c:4350
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4597c9
RSP: 002b:00007f5d11482c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00000000004597c9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000020000140
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d114836d4
R13: 00000000004f53e2 R14: 00000000004d9f08 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..