audit: type=1804 audit(1642347281.872:201): pid=16010 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir207586091/syzkaller.yI143J/104/memory.events" dev="sda1" ino=14381 res=1
Illegal XDP return value 4294967274, expect packet loss!
------------[ cut here ]------------
WARNING: CPU: 0 PID: 16056 at net/core/filter.c:3647 bpf_warn_invalid_xdp_action net/core/filter.c:3647 [inline]
WARNING: CPU: 0 PID: 16056 at net/core/filter.c:3647 bpf_warn_invalid_xdp_action.cold+0x3c/0x43 net/core/filter.c:3643
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 16056 Comm: syz-executor.3 Not tainted 4.14.262-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
overlayfs: unrecognized mount option "redirect_di[ Ÿþr=./file1" or missing value
 report_bug+0x208/0x250 lib/bug.c:183
overlayfs: unrecognized mount option "ßp7Ôºý¤iÊjL¼=ûT¯1Ë;»ñp&'×áßÓî³cÅK^" or missing value
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:bpf_warn_invalid_xdp_action net/core/filter.c:3647 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action.cold+0x3c/0x43 net/core/filter.c:3643
RSP: 0018:ffff8880ba407578 EFLAGS: 00010282
RAX: 0000000000000038 RBX: 1ffff11017480eb8 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff878bbcc0 RDI: ffffed1017480ea5
RBP: ffffffff88564900 R08: 0000000000000038 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea
R13: ffffc90005c2e000 R14: 0000000000000000 R15: ffff8880a32a8406
 netif_receive_generic_xdp+0x554/0x950 net/core/dev.c:3956
 do_xdp_generic.part.0+0x22/0xc0 net/core/dev.c:4001
 do_xdp_generic net/core/dev.c:4039 [inline]
 netif_rx_internal+0x219/0x800 net/core/dev.c:4039
 dev_forward_skb+0x39/0x50 net/core/dev.c:1866
 veth_xmit+0xf1/0x300 drivers/net/veth.c:114
 __netdev_start_xmit include/linux/netdevice.h:4051 [inline]
 netdev_start_xmit include/linux/netdevice.h:4060 [inline]
 xmit_one net/core/dev.c:3005 [inline]
 dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021
 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521
 neigh_hh_output include/net/neighbour.h:490 [inline]
 neigh_output include/net/neighbour.h:498 [inline]
 ip6_finish_output2+0xc6a/0x1f10 net/ipv6/ip6_output.c:120
 ip6_finish_output+0x5c6/0xd50 net/ipv6/ip6_output.c:192
 NF_HOOK_COND include/linux/netfilter.h:239 [inline]
 ip6_output+0x1c5/0x660 net/ipv6/ip6_output.c:209
 dst_output include/net/dst.h:470 [inline]
 NF_HOOK include/linux/netfilter.h:250 [inline]
 mld_sendpack+0x5fe/0xea0 net/ipv6/mcast.c:1657
 mld_send_cr net/ipv6/mcast.c:1953 [inline]
 mld_ifc_timer_expire+0x57c/0xcd0 net/ipv6/mcast.c:2452
 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1280
 expire_timers+0x232/0x4d0 kernel/time/timer.c:1319
 __run_timers kernel/time/timer.c:1637 [inline]
 run_timer_softirq+0x1d5/0x5a0 kernel/time/timer.c:1650
 __do_softirq+0x24d/0x9ff kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x193/0x240 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1106
 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:200
RSP: 0018:ffff888092646e58 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff11e127b RBX: ffff8880aa0d62c0 RCX: 1ffff1101541ad6d
RDX: dffffc0000000000 RSI: ffff8880aa0d6b48 RDI: ffff8880aa0d6b44
RBP: ffff8880ba434380 R08: ffffffff8b9c5ac8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ba434380
R13: ffff8880a188c340 R14: 0000000000000000 R15: ffff8880ba434cd0
 finish_lock_switch kernel/sched/sched.h:1346 [inline]
 finish_task_switch+0x178/0x610 kernel/sched/core.c:2678
 context_switch kernel/sched/core.c:2814 [inline]
 __schedule+0x893/0x1de0 kernel/sched/core.c:3387
 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3614
 retint_kernel+0x1b/0x2d
RIP: 0010:__vlan_group_get_device net/8021q/vlan.h:58 [inline]
RIP: 0010:vlan_device_event+0x10dd/0x1ad0 net/8021q/vlan.c:391
RSP: 0018:ffff888092647058 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffff8880aa0d62c0 RBX: ffff8880b35cb900 RCX: 1ffff110166b9727
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880b35cb938
RBP: 000000000000074a R08: ffffffff89d19d00 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000074a
R13: dffffc0000000000 R14: 0000000000000003 R15: ffff8880b35cb908
 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93
 call_netdevice_notifiers_info net/core/dev.c:1667 [inline]
 netdev_state_change net/core/dev.c:1314 [inline]
 netdev_state_change+0xca/0xf0 net/core/dev.c:1308
 do_setlink+0x2508/0x2bf0 net/core/rtnetlink.c:2280
 rtnl_group_changelink net/core/rtnetlink.c:2512 [inline]
 rtnl_newlink+0xccc/0x1860 net/core/rtnetlink.c:2666
 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320
 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2446
 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline]
 netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320
 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
 __sys_sendmsg+0xa3/0x120 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f5cbcfa4fe9
RSP: 002b:00007f5cbb8f9168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5cbd0b8030 RCX: 00007f5cbcfa4fe9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000014
RBP: 00007f5cbcfff08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc8c1f062f R14: 00007f5cbb8f9300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..