------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 1 PID: 11245 at kernel/locking/lockdep.c:167 hlock_class kernel/locking/lockdep.c:167 [inline] WARNING: CPU: 1 PID: 11245 at kernel/locking/lockdep.c:167 hlock_class kernel/locking/lockdep.c:156 [inline] WARNING: CPU: 1 PID: 11245 at kernel/locking/lockdep.c:167 mark_lock+0x22b/0x1220 kernel/locking/lockdep.c:3643 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 11245 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:hlock_class kernel/locking/lockdep.c:167 [inline] RIP: 0010:hlock_class kernel/locking/lockdep.c:156 [inline] RIP: 0010:mark_lock+0x22b/0x1220 kernel/locking/lockdep.c:3643 Code: d0 7c 08 84 d2 0f 85 a8 0e 00 00 44 8b 1d 2d 46 22 09 45 85 db 75 b6 48 c7 c6 60 80 2b 88 48 c7 c7 a0 80 2b 88 e8 b4 3f eb ff <0f> 0b 31 db e9 aa fe ff ff 48 c7 c7 e0 64 67 8b e8 90 4b 58 00 e9 RSP: 0018:ffffc90000da8248 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815e5e56 RDI: fffff520001b503b RBP: ffffc90000da8298 R08: ffff88806809c640 R09: fffffbfff133328d R10: fffffbfff133328c R11: ffffffff89999463 R12: 0000000000000004 R13: ffff88806809cff0 R14: 0000000000000001 R15: 00000000000427db mark_usage kernel/locking/lockdep.c:3566 [inline] __lock_acquire+0x1e8e/0x4a00 kernel/locking/lockdep.c:3909 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] __netif_tx_lock include/linux/netdevice.h:3937 [inline] sch_direct_xmit+0x2e0/0xd30 net/sched/sch_generic.c:311 __dev_xmit_skb net/core/dev.c:3621 [inline] __dev_queue_xmit+0x2707/0x35c0 net/core/dev.c:3982 dev_queue_xmit+0x18/0x20 net/core/dev.c:4046 neigh_resolve_output net/core/neighbour.c:1487 [inline] neigh_resolve_output+0x5c4/0x990 net/core/neighbour.c:1467 neigh_output include/net/neighbour.h:510 [inline] ip6_finish_output2+0x109a/0x25c0 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x444/0xaa0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x25e/0x880 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0xf1f/0x1490 net/ipv6/ndisc.c:505 ndisc_send_rs+0x134/0x720 net/ipv6/ndisc.c:699 addrconf_rs_timer+0x30f/0x6e0 net/ipv6/addrconf.c:3879 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:preempt_schedule_irq+0xab/0x160 kernel/sched/core.c:4338 Code: 00 00 e8 68 2a 78 f9 e8 b3 15 a2 f9 4c 89 f0 48 c1 e8 03 80 3c 18 00 75 7d 48 83 3d b6 b4 ba 01 00 74 6f fb 66 0f 1f 44 00 00 01 00 00 00 e8 ab d1 ff ff 48 c7 c0 e0 34 93 89 48 c1 e8 03 80 RSP: 0018:ffffc90001eb6ce8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff132669d RBX: dffffc0000000000 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88806809ced4 RBP: ffffc90001eb6d08 R08: 1ffffffff166119f R09: fffffbfff16611a0 R10: fffffbfff166119f R11: ffffffff8b308cff R12: ffffed100d0138c8 R13: ffff88806809c640 R14: ffffffff899334e8 R15: 0000000000000000 retint_kernel+0x1b/0x2b RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline] RIP: 0010:lockdep_unregister_key+0x32c/0x4c0 kernel/locking/lockdep.c:5196 Code: ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 ed 00 00 00 48 83 3d 97 17 39 08 00 0f 84 ac 00 00 00 4c 89 f7 57 9d <0f> 1f 44 00 00 e8 aa 0b 08 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 RSP: 0018:ffffc90001eb6dc8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff02 RAX: 1ffffffff132669b RBX: ffff88806809c640 RCX: ffffffff815a1c76 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: 0000000000000282 RBP: ffffc90001eb6df8 R08: 0000000000000004 R09: fffffbfff16c6449 R10: fffffbfff16c6448 R11: 0000000000000003 R12: ffff888070048b30 R13: ffffffff8b46c7c8 R14: 0000000000000282 R15: ffffffff8b304c98 netdev_update_lockdep_key+0x31/0x180 net/core/dev.c:9198 do_set_master+0x118/0x240 net/core/rtnetlink.c:2456 do_setlink+0xad2/0x3720 net/core/rtnetlink.c:2603 __rtnl_newlink+0xbef/0x1790 net/core/rtnetlink.c:3243 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3368 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5429 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5447 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x753/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmsg+0x105/0x1d0 net/socket.c:2430 __do_sys_sendmsg net/socket.c:2439 [inline] __se_sys_sendmsg net/socket.c:2437 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aff9 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f06959f6c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f06959f76d4 RCX: 000000000045aff9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000007 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000988 R14: 00000000004cac40 R15: 000000000075bfd4 Kernel Offset: disabled Rebooting in 86400 seconds..