[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.428920][ T27] audit: type=1800 audit(1576130111.011:25): pid=9045 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.449039][ T27] audit: type=1800 audit(1576130111.011:26): pid=9045 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.494477][ T27] audit: type=1800 audit(1576130111.011:27): pid=9045 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.57' (ECDSA) to the list of known hosts. syzkaller login: [ 73.354734][ T9198] IPVS: ftp: loaded support on port[0] = 21 [ 73.420945][ T9198] chnl_net:caif_netlink_parms(): no params data found [ 73.451151][ T9198] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.459020][ T9198] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.467818][ T9198] device bridge_slave_0 entered promiscuous mode [ 73.476291][ T9198] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.483498][ T9198] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.492019][ T9198] device bridge_slave_1 entered promiscuous mode [ 73.509977][ T9198] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.521244][ T9198] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.542270][ T9198] team0: Port device team_slave_0 added [ 73.550689][ T9198] team0: Port device team_slave_1 added [ 73.638223][ T9198] device hsr_slave_0 entered promiscuous mode [ 73.676854][ T9198] device hsr_slave_1 entered promiscuous mode [ 73.740808][ T9198] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.798372][ T9198] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.878201][ T9198] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.928161][ T9198] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.997213][ T9198] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.004365][ T9198] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.012257][ T9198] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.019372][ T9198] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.061930][ T9198] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.074518][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.097562][ T3017] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.107467][ T3017] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.115876][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.128406][ T9198] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.139469][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.148112][ T3017] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.155145][ T3017] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.167377][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.176007][ T26] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.183050][ T26] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.207319][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.217108][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.225568][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.234264][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.247049][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.257982][ T9198] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 74.275091][ T9200] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.282989][ T9200] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.296989][ T9198] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.637636][ T393] list_del corruption. prev->next should be ffff88808fd17b10, but was ffff88808fd17590 [ 74.648618][ T393] ------------[ cut here ]------------ [ 74.654090][ T393] kernel BUG at lib/list_debug.c:51! [ 74.659512][ T393] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 74.665579][ T393] CPU: 1 PID: 393 Comm: kworker/u4:5 Not tainted 5.5.0-rc1-next-20191211-syzkaller #0 [ 74.675097][ T393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.685143][ T393] Workqueue: netns cleanup_net [ 74.689941][ T393] RIP: 0010:__list_del_entry_valid.cold+0xf/0x4f [ 74.696253][ T393] Code: e8 c9 00 cb fd 0f 0b 48 89 f1 48 c7 c7 c0 10 70 88 4c 89 e6 e8 b5 00 cb fd 0f 0b 4c 89 f6 48 c7 c7 60 12 70 88 e8 a4 00 cb fd <0f> 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 11 70 88 e8 90 00 cb fd 0f 0b [ 74.715839][ T393] RSP: 0018:ffffc90001617980 EFLAGS: 00010286 [ 74.721884][ T393] RAX: 0000000000000054 RBX: ffff8880a1ce8840 RCX: 0000000000000000 [ 74.729837][ T393] RDX: 0000000000000000 RSI: ffffffff815e8576 RDI: fffff520002c2f22 [ 74.737795][ T393] RBP: ffffc90001617998 R08: 0000000000000054 R09: ffffed1015d26621 [ 74.745771][ T393] R10: ffffed1015d26620 R11: ffff8880ae933107 R12: ffff8880a1ce8940 [ 74.753764][ T393] R13: ffff88808fd17590 R14: ffff88808fd17b10 R15: ffff88808fd17b10 [ 74.761721][ T393] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 74.770631][ T393] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.777267][ T393] CR2: ffffffffff600400 CR3: 000000008d040000 CR4: 00000000001406e0 [ 74.785219][ T393] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.793169][ T393] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.801116][ T393] Call Trace: [ 74.804390][ T393] __dentry_kill+0x1fd/0x600 [ 74.808960][ T393] ? dput+0x38/0xe10 [ 74.812832][ T393] ? dput+0x38/0xe10 [ 74.816708][ T393] dput+0x62f/0xe10 [ 74.820497][ T393] simple_recursive_removal+0x5bc/0x6d0 [ 74.826022][ T393] ? debugfs_rename+0x7f0/0x7f0 [ 74.830852][ T393] ? mntput+0x74/0xa0 [ 74.834811][ T393] debugfs_remove+0x5e/0x80 [ 74.839292][ T393] nsim_ipsec_teardown+0x7c/0x8f [ 74.844206][ T393] nsim_destroy+0x42/0x70 [ 74.848514][ T393] __nsim_dev_port_del+0x150/0x1f0 [ 74.853687][ T393] nsim_dev_port_del_all+0x8b/0xe0 [ 74.858775][ T393] nsim_dev_reload_destroy+0x58/0xf0 [ 74.864037][ T393] nsim_dev_reload_down+0x73/0xe0 [ 74.869044][ T393] devlink_reload+0xc8/0x3c0 [ 74.873610][ T393] ? devlink_nl_cmd_reload+0x7e0/0x7e0 [ 74.879049][ T393] devlink_pernet_pre_exit+0x104/0x1a0 [ 74.884484][ T393] ? devlink_nl_cmd_reload+0x7e0/0x7e0 [ 74.889953][ T393] cleanup_net+0x49b/0xaf0 [ 74.894370][ T393] ? unregister_pernet_device+0x80/0x80 [ 74.899961][ T393] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.905670][ T393] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.911642][ T393] ? trace_hardirqs_on+0x67/0x240 [ 74.916660][ T393] process_one_work+0x9af/0x1740 [ 74.921580][ T393] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.926942][ T393] ? lock_acquire+0x190/0x410 [ 74.931689][ T393] worker_thread+0x98/0xe40 [ 74.936172][ T393] ? trace_hardirqs_on+0x67/0x240 [ 74.941174][ T393] kthread+0x361/0x430 [ 74.945230][ T393] ? process_one_work+0x1740/0x1740 [ 74.950404][ T393] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 74.956103][ T393] ret_from_fork+0x24/0x30 [ 74.960492][ T393] Modules linked in: [ 74.964457][ T393] ---[ end trace 700329e407063cc0 ]--- [ 74.969949][ T393] RIP: 0010:__list_del_entry_valid.cold+0xf/0x4f [ 74.976281][ T393] Code: e8 c9 00 cb fd 0f 0b 48 89 f1 48 c7 c7 c0 10 70 88 4c 89 e6 e8 b5 00 cb fd 0f 0b 4c 89 f6 48 c7 c7 60 12 70 88 e8 a4 00 cb fd <0f> 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 11 70 88 e8 90 00 cb fd 0f 0b [ 74.996079][ T393] RSP: 0018:ffffc90001617980 EFLAGS: 00010286 [ 75.002131][ T393] RAX: 0000000000000054 RBX: ffff8880a1ce8840 RCX: 0000000000000000 [ 75.010124][ T393] RDX: 0000000000000000 RSI: ffffffff815e8576 RDI: fffff520002c2f22 [ 75.018202][ T393] RBP: ffffc90001617998 R08: 0000000000000054 R09: ffffed1015d26621 [ 75.026231][ T393] R10: ffffed1015d26620 R11: ffff8880ae933107 R12: ffff8880a1ce8940 [ 75.034191][ T393] R13: ffff88808fd17590 R14: ffff88808fd17b10 R15: ffff88808fd17b10 [ 75.042188][ T393] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 75.051288][ T393] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.057912][ T393] CR2: ffffffffff600400 CR3: 000000008d040000 CR4: 00000000001406e0 [ 75.065894][ T393] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.073845][ T393] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.081827][ T393] Kernel panic - not syncing: Fatal exception [ 75.089440][ T393] Kernel Offset: disabled [ 75.093776][ T393] Rebooting in 86400 seconds..