audit: type=1305 audit(1582528756.489:89365): audit_enabled=1 old=1 auid=4294967295 ses=4294967295 res=1 device hsr_slave_0 left promiscuous mode audit: audit_backlog=82 > audit_backlog_limit=64 audit: audit_lost=1 audit_rate_limit=0 audit_backlog_limit=64 Kernel panic - not syncing: audit: backlog limit exceeded CPU: 0 PID: 6834 Comm: kworker/u4:5 Not tainted 4.13.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x145/0x1e1 lib/dump_stack.c:52 panic+0x1a9/0x34e kernel/panic.c:180 audit_panic.cold.20+0x28/0x28 kernel/audit.c:280 audit_log_lost+0x96/0x1c0 kernel/audit.c:350 audit_log_start+0x3de/0x8e0 kernel/audit.c:1729 audit_log+0x6a/0xd0 kernel/audit.c:2331 __dev_set_promiscuity.cold.173+0x329/0x4b5 net/core/dev.c:6522 dev_set_promiscuity+0x48/0xc0 net/core/dev.c:6556 hsr_del_port+0x232/0x3f0 net/hsr/hsr_slave.c:192 hsr_netdev_notify+0x899/0x1450 net/hsr/hsr_main.c:88 notifier_call_chain+0x19e/0x2c0 kernel/notifier.c:93 __raw_notifier_call_chain kernel/notifier.c:394 [inline] raw_notifier_call_chain+0x11/0x20 kernel/notifier.c:401 call_netdevice_notifiers_info+0x4b/0x60 net/core/dev.c:1671 call_netdevice_notifiers net/core/dev.c:1687 [inline] rollback_registered_many+0x744/0xe60 net/core/dev.c:7140 unregister_netdevice_many+0xea/0x4a0 net/core/dev.c:8189 default_device_exit_batch+0x3cb/0x500 net/core/dev.c:8648 ops_exit_list.isra.8+0xd3/0x120 net/core/net_namespace.c:145 cleanup_net+0x55b/0xa90 net/core/net_namespace.c:483 process_one_work+0x9aa/0x1920 kernel/workqueue.c:2097 worker_thread+0x215/0x1820 kernel/workqueue.c:2231 kthread+0x338/0x400 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:425 Kernel Offset: disabled Rebooting in 86400 seconds..