[ 91.042883][ T27] audit: type=1800 audit(1582766600.965:27): pid=9843 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 91.087747][ T27] audit: type=1800 audit(1582766600.965:28): pid=9843 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 91.951910][ T27] audit: type=1800 audit(1582766601.935:29): pid=9843 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 91.972198][ T27] audit: type=1800 audit(1582766601.935:30): pid=9843 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.124' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 103.263502][ T9997] IPVS: ftp: loaded support on port[0] = 21 [ 103.410300][ T9997] IPVS: ftp: loaded support on port[0] = 21 executing program [ 103.822191][T10023] IPVS: ftp: loaded support on port[0] = 21 [ 103.855003][ T44] tipc: TX() has been purged, node left! [ 104.321046][T10023] IPVS: ftp: loaded support on port[0] = 21 executing program [ 105.098333][T10047] IPVS: ftp: loaded support on port[0] = 21 [ 105.692710][T10047] IPVS: ftp: loaded support on port[0] = 21 [ 105.915883][ T44] ------------[ cut here ]------------ [ 105.921672][ T44] WARNING: CPU: 1 PID: 44 at drivers/net/geneve.c:1849 geneve_exit_batch_net+0x53e/0x640 [ 105.931623][ T44] Kernel panic - not syncing: panic_on_warn set ... [ 105.938242][ T44] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 5.6.0-rc2-syzkaller #0 [ 105.946495][ T44] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.956747][ T44] Workqueue: netns cleanup_net [ 105.961531][ T44] Call Trace: [ 105.964852][ T44] dump_stack+0x197/0x210 [ 105.969217][ T44] ? geneve_exit_batch_net+0x510/0x640 [ 105.974714][ T44] panic+0x2e3/0x75c [ 105.978653][ T44] ? add_taint.cold+0x16/0x16 [ 105.983364][ T44] ? printk+0xba/0xed [ 105.987389][ T44] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 105.992891][ T44] ? __warn.cold+0x14/0x3e [ 105.997338][ T44] ? __warn+0xd9/0x1cf [ 106.001540][ T44] ? geneve_exit_batch_net+0x53e/0x640 [ 106.007143][ T44] __warn.cold+0x2f/0x3e [ 106.011417][ T44] ? report_bug.cold+0x63/0xb2 [ 106.016210][ T44] ? geneve_exit_batch_net+0x53e/0x640 [ 106.021700][ T44] report_bug+0x289/0x300 [ 106.026068][ T44] do_error_trap+0x11b/0x200 [ 106.030696][ T44] do_invalid_op+0x37/0x50 [ 106.035146][ T44] ? geneve_exit_batch_net+0x53e/0x640 [ 106.040643][ T44] invalid_op+0x23/0x30 [ 106.045004][ T44] RIP: 0010:geneve_exit_batch_net+0x53e/0x640 [ 106.051092][ T44] Code: fc 48 c7 c2 80 2d c0 88 be 2d 00 00 00 48 c7 c7 e0 30 c0 88 c6 05 f2 b4 d6 05 01 e8 71 3d 91 fc e9 64 fc ff ff e8 92 44 ab fc <0f> 0b e9 91 fe ff ff 48 8d 43 c0 48 89 85 68 ff ff ff e9 bb fe ff [ 106.070720][ T44] RSP: 0018:ffffc90000e27b68 EFLAGS: 00010293 [ 106.076799][ T44] RAX: ffff8880a9560500 RBX: dffffc0000000000 RCX: ffffffff8638482c [ 106.084795][ T44] RDX: 0000000000000000 RSI: ffffffff84ca432e RDI: ffff8880a667a070 [ 106.092790][ T44] RBP: ffffc90000e27c18 R08: ffff8880a9560500 R09: fffffbfff14e9b45 [ 106.100788][ T44] R10: fffffbfff14e9b44 R11: ffffffff8a74da27 R12: ffff8880a2222080 [ 106.108787][ T44] R13: ffff8880a6befe10 R14: ffff8880a6befe00 R15: ffff8880a6befe00 [ 106.116825][ T44] ? unregister_netdevice_queue+0x13c/0x2c0 [ 106.122757][ T44] ? geneve_exit_batch_net+0x53e/0x640 [ 106.128368][ T44] ? geneve_exit_batch_net+0x53e/0x640 [ 106.133918][ T44] ? geneve_open+0x1d0/0x1d0 [ 106.138581][ T44] ? rtnl_unlock+0xe/0x10 [ 106.142941][ T44] ? geneve_open+0x1d0/0x1d0 [ 106.147783][ T44] ops_exit_list.isra.0+0x10c/0x160 [ 106.153027][ T44] cleanup_net+0x549/0xb10 [ 106.157475][ T44] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 106.163936][ T44] ? unregister_pernet_device+0x80/0x80 [ 106.169515][ T44] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 106.175099][ T44] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 106.181113][ T44] ? trace_hardirqs_on+0x67/0x240 [ 106.186185][ T44] process_one_work+0xa05/0x17a0 [ 106.191153][ T44] ? mark_held_locks+0xf0/0xf0 [ 106.195970][ T44] ? pwq_dec_nr_in_flight+0x320/0x320 [ 106.201394][ T44] ? lock_acquire+0x190/0x410 [ 106.206127][ T44] worker_thread+0x98/0xe40 [ 106.210667][ T44] ? trace_hardirqs_on+0x67/0x240 [ 106.215749][ T44] kthread+0x361/0x430 [ 106.219850][ T44] ? process_one_work+0x17a0/0x17a0 [ 106.225078][ T44] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 106.230831][ T44] ret_from_fork+0x24/0x30 [ 106.237058][ T44] Kernel Offset: disabled [ 106.241675][ T44] Rebooting in 86400 seconds..