[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.776737][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 63.776749][ T26] audit: type=1800 audit(1567822742.538:29): pid=9636 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 [ 63.804192][ T26] audit: type=1800 audit(1567822742.548:30): pid=9636 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 '10.128.1.48' (ECDSA) to the list of known hosts. syzkaller login: [ 74.301134][ T9786] IPVS: ftp: loaded support on port[0] = 21 [ 74.342889][ T9786] chnl_net:caif_netlink_parms(): no params data found [ 74.365121][ T9786] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.372540][ T9786] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.380011][ T9786] device bridge_slave_0 entered promiscuous mode [ 74.387090][ T9786] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.394260][ T9786] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.402483][ T9786] device bridge_slave_1 entered promiscuous mode [ 74.415772][ T9786] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.426221][ T9786] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.442200][ T9786] team0: Port device team_slave_0 added [ 74.448521][ T9786] team0: Port device team_slave_1 added [ 74.521216][ T9786] device hsr_slave_0 entered promiscuous mode [ 74.579911][ T9786] device hsr_slave_1 entered promiscuous mode [ 74.654528][ T9786] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.661744][ T9786] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.669012][ T9786] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.676115][ T9786] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.700650][ T9786] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.711803][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.720470][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.727937][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.735891][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.745878][ T9786] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.755009][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.763461][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.770643][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.788087][ T9786] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.798748][ T9786] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.811579][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.819886][ T9788] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.826898][ T9788] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.835166][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.845400][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready executing program [ 74.853683][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.861849][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.870067][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.877547][ T9788] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.891927][ T9786] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.918851][ T9786] kasan: CONFIG_KASAN_INLINE enabled [ 74.924597][ T9786] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 74.932957][ T9786] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 74.939891][ T9786] CPU: 1 PID: 9786 Comm: syz-executor894 Not tainted 5.3.0-rc7+ #0 [ 74.947838][ T9786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.957886][ T9786] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 74.963861][ T9786] Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d [ 74.983546][ T9786] RSP: 0018:ffff88808ca8f450 EFLAGS: 00010246 [ 74.989595][ T9786] RAX: dffffc0000000000 RBX: ffff8880a51e5680 RCX: ffffffff8159b24a [ 74.997913][ T9786] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880a51e59e8 [ 75.006663][ T9786] RBP: ffff88808ca8f468 R08: 0000000000000004 R09: ffffed1011951e7d [ 75.014618][ T9786] R10: ffffed1011951e7c R11: 0000000000000003 R12: 0000000000000000 [ 75.022662][ T9786] R13: 0000000000000000 R14: ffff8880a51e59e0 R15: ffff8880a51e5940 [ 75.030633][ T9786] FS: 00005555568b4880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 75.039632][ T9786] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.046205][ T9786] CR2: 0000000020000610 CR3: 00000000a01a5000 CR4: 00000000001406e0 [ 75.054154][ T9786] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.062101][ T9786] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.070056][ T9786] Call Trace: [ 75.073344][ T9786] cbs_destroy+0x7d/0x2a0 [ 75.077655][ T9786] ? cbs_init+0x25d/0x450 [ 75.081968][ T9786] ? cbs_dequeue_soft+0x410/0x410 [ 75.086971][ T9786] qdisc_create+0xbc6/0x1210 [ 75.091632][ T9786] ? tc_get_qdisc+0xc10/0xc10 [ 75.096302][ T9786] ? __nla_parse+0x43/0x60 [ 75.100781][ T9786] tc_modify_qdisc+0x524/0x1c50 [ 75.105611][ T9786] ? qdisc_create+0x1210/0x1210 [ 75.110456][ T9786] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 75.115565][ T9786] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.121866][ T9786] ? qdisc_create+0x1210/0x1210 [ 75.126693][ T9786] rtnetlink_rcv_msg+0x463/0xb00 [ 75.131639][ T9786] ? rtnetlink_put_metrics+0x580/0x580 [ 75.137073][ T9786] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 75.142347][ T9786] ? __copy_skb_header+0x250/0x550 [ 75.147435][ T9786] netlink_rcv_skb+0x177/0x450 [ 75.152176][ T9786] ? rtnetlink_put_metrics+0x580/0x580 [ 75.157608][ T9786] ? netlink_ack+0xb30/0xb30 [ 75.162172][ T9786] ? netlink_deliver_tap+0x254/0xbf0 [ 75.167434][ T9786] rtnetlink_rcv+0x1d/0x30 [ 75.171835][ T9786] netlink_unicast+0x531/0x710 [ 75.176580][ T9786] ? netlink_attachskb+0x7c0/0x7c0 [ 75.181669][ T9786] ? _copy_from_iter_full+0x25d/0x8a0 [ 75.187018][ T9786] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 75.192712][ T9786] ? __check_object_size+0x3d/0x437 [ 75.197886][ T9786] netlink_sendmsg+0x8a5/0xd60 [ 75.202742][ T9786] ? netlink_unicast+0x710/0x710 [ 75.207801][ T9786] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 75.213357][ T9786] ? apparmor_socket_sendmsg+0x2a/0x30 [ 75.218795][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.225021][ T9786] ? security_socket_sendmsg+0x8d/0xc0 [ 75.230467][ T9786] ? netlink_unicast+0x710/0x710 [ 75.235388][ T9786] sock_sendmsg+0xd7/0x130 [ 75.239781][ T9786] ___sys_sendmsg+0x803/0x920 [ 75.244446][ T9786] ? copy_msghdr_from_user+0x440/0x440 [ 75.249895][ T9786] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 75.256126][ T9786] ? tomoyo_path_number_perm+0x263/0x520 [ 75.261739][ T9786] ? sock_ioctl+0x489/0x780 [ 75.266238][ T9786] ? dlci_ioctl_set+0x40/0x40 [ 75.270895][ T9786] ? dlci_ioctl_set+0x40/0x40 [ 75.275548][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.281762][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.287974][ T9786] ? __fget_light+0x1a9/0x230 [ 75.292642][ T9786] ? __fdget+0x1b/0x20 [ 75.296713][ T9786] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.302931][ T9786] __sys_sendmsg+0x105/0x1d0 [ 75.307494][ T9786] ? __sys_sendmsg_sock+0xd0/0xd0 [ 75.312515][ T9786] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 75.318560][ T9786] __x64_sys_sendmsg+0x78/0xb0 [ 75.323300][ T9786] do_syscall_64+0xfd/0x6a0 [ 75.327785][ T9786] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.333658][ T9786] RIP: 0033:0x441b59 [ 75.337527][ T9786] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 75.357118][ T9786] RSP: 002b:00007ffe92351468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 75.365520][ T9786] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 75.373933][ T9786] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 75.381882][ T9786] RBP: 00007ffe92351480 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 75.389842][ T9786] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 75.397921][ T9786] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 75.405885][ T9786] Modules linked in: [ 75.410052][ T9786] ---[ end trace 43ced9807c7b61ab ]--- [ 75.415635][ T9786] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 75.421635][ T9786] Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d [ 75.441254][ T9786] RSP: 0018:ffff88808ca8f450 EFLAGS: 00010246 [ 75.447309][ T9786] RAX: dffffc0000000000 RBX: ffff8880a51e5680 RCX: ffffffff8159b24a [ 75.455298][ T9786] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880a51e59e8 [ 75.463367][ T9786] RBP: ffff88808ca8f468 R08: 0000000000000004 R09: ffffed1011951e7d [ 75.471362][ T9786] R10: ffffed1011951e7c R11: 0000000000000003 R12: 0000000000000000 [ 75.479335][ T9786] R13: 0000000000000000 R14: ffff8880a51e59e0 R15: ffff8880a51e5940 [ 75.487345][ T9786] FS: 00005555568b4880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 75.496470][ T9786] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.503092][ T9786] CR2: 0000000020000610 CR3: 00000000a01a5000 CR4: 00000000001406e0 [ 75.511080][ T9786] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.519046][ T9786] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.527085][ T9786] Kernel panic - not syncing: Fatal exception [ 75.534639][ T9786] Kernel Offset: disabled [ 75.538998][ T9786] Rebooting in 86400 seconds..