[....] 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. [ 63.771291][ T25] kauditd_printk_skb: 7 callbacks suppressed [ 63.771302][ T25] audit: type=1800 audit(1567836447.454:29): pid=9617 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 [ 63.797967][ T25] audit: type=1800 audit(1567836447.454:30): pid=9617 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 '10.128.0.175' (ECDSA) to the list of known hosts. syzkaller login: [ 70.411473][ T9773] IPVS: ftp: loaded support on port[0] = 21 [ 70.453714][ T9773] chnl_net:caif_netlink_parms(): no params data found [ 70.474764][ T9773] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.482236][ T9773] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.489757][ T9773] device bridge_slave_0 entered promiscuous mode [ 70.496905][ T9773] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.504029][ T9773] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.511576][ T9773] device bridge_slave_1 entered promiscuous mode [ 70.524833][ T9773] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.535376][ T9773] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.552022][ T9773] team0: Port device team_slave_0 added [ 70.558812][ T9773] team0: Port device team_slave_1 added [ 70.618784][ T9773] device hsr_slave_0 entered promiscuous mode [ 70.687648][ T9773] device hsr_slave_1 entered promiscuous mode [ 70.762055][ T9773] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.769269][ T9773] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.776547][ T9773] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.783627][ T9773] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.808088][ T9773] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.818772][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.826772][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.834892][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.842618][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.852472][ T9773] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.861983][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.870322][ T3516] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.877511][ T3516] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.886716][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.895341][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.902425][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.920451][ T9773] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.930962][ T9773] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.943078][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.951655][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.959919][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 70.968132][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.977365][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.985058][ T3516] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.999468][ T9773] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.025523][ T9773] kasan: CONFIG_KASAN_INLINE enabled [ 71.031007][ T9773] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 71.039102][ T9773] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 71.046044][ T9773] CPU: 1 PID: 9773 Comm: syz-executor852 Not tainted 5.3.0-rc7+ #0 [ 71.053909][ T9773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.063967][ T9773] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 71.069948][ T9773] 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 [ 71.089529][ T9773] RSP: 0018:ffff888093a1f450 EFLAGS: 00010246 [ 71.095633][ T9773] RAX: dffffc0000000000 RBX: ffff8880a3f04480 RCX: ffffffff8159b2aa [ 71.103602][ T9773] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880a3f047e8 [ 71.111569][ T9773] RBP: ffff888093a1f468 R08: 0000000000000004 R09: ffffed1012743e7d [ 71.119523][ T9773] R10: ffffed1012743e7c R11: 0000000000000003 R12: 0000000000000000 [ 71.127485][ T9773] R13: 0000000000000000 R14: ffff8880a3f047e0 R15: ffff8880a3f04740 [ 71.135466][ T9773] FS: 0000555555725880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.144371][ T9773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.150928][ T9773] CR2: 0000000020000610 CR3: 000000009fe68000 CR4: 00000000001406e0 [ 71.158968][ T9773] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.166918][ T9773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.174866][ T9773] Call Trace: [ 71.178151][ T9773] cbs_destroy+0x7d/0x2a0 [ 71.182469][ T9773] ? cbs_init+0x25d/0x450 [ 71.186789][ T9773] ? cbs_dequeue_soft+0x410/0x410 [ 71.191790][ T9773] qdisc_create+0xbc6/0x1210 [ 71.196353][ T9773] ? tc_get_qdisc+0xc10/0xc10 [ 71.201010][ T9773] ? __nla_parse+0x43/0x60 [ 71.205405][ T9773] tc_modify_qdisc+0x524/0x1c50 [ 71.210233][ T9773] ? qdisc_create+0x1210/0x1210 [ 71.215064][ T9773] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 71.220153][ T9773] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 71.226387][ T9773] ? qdisc_create+0x1210/0x1210 [ 71.231250][ T9773] rtnetlink_rcv_msg+0x463/0xb00 [ 71.236180][ T9773] ? rtnetlink_put_metrics+0x580/0x580 [ 71.241649][ T9773] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 71.246927][ T9773] ? __copy_skb_header+0x250/0x550 [ 71.252021][ T9773] netlink_rcv_skb+0x177/0x450 [ 71.256789][ T9773] ? rtnetlink_put_metrics+0x580/0x580 [ 71.262230][ T9773] ? netlink_ack+0xb30/0xb30 [ 71.266799][ T9773] ? netlink_deliver_tap+0x254/0xbf0 [ 71.272075][ T9773] rtnetlink_rcv+0x1d/0x30 [ 71.276484][ T9773] netlink_unicast+0x531/0x710 [ 71.281228][ T9773] ? netlink_attachskb+0x7c0/0x7c0 [ 71.286317][ T9773] ? _copy_from_iter_full+0x25d/0x8a0 [ 71.291680][ T9773] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 71.297737][ T9773] ? __check_object_size+0x3d/0x437 [ 71.302923][ T9773] netlink_sendmsg+0x8a5/0xd60 [ 71.307676][ T9773] ? netlink_unicast+0x710/0x710 [ 71.312592][ T9773] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 71.318120][ T9773] ? apparmor_socket_sendmsg+0x2a/0x30 [ 71.323569][ T9773] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.329786][ T9773] ? security_socket_sendmsg+0x8d/0xc0 [ 71.335458][ T9773] ? netlink_unicast+0x710/0x710 [ 71.340411][ T9773] sock_sendmsg+0xd7/0x130 [ 71.344836][ T9773] ___sys_sendmsg+0x803/0x920 [ 71.349506][ T9773] ? copy_msghdr_from_user+0x440/0x440 [ 71.354948][ T9773] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 71.361177][ T9773] ? tomoyo_path_number_perm+0x263/0x520 [ 71.366791][ T9773] ? sock_ioctl+0x489/0x780 [ 71.371294][ T9773] ? dlci_ioctl_set+0x40/0x40 [ 71.375967][ T9773] ? dlci_ioctl_set+0x40/0x40 [ 71.380625][ T9773] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.386840][ T9773] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.393070][ T9773] ? __fget_light+0x1a9/0x230 [ 71.397727][ T9773] ? __fdget+0x1b/0x20 [ 71.401783][ T9773] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 71.408015][ T9773] __sys_sendmsg+0x105/0x1d0 [ 71.412585][ T9773] ? __sys_sendmsg_sock+0xd0/0xd0 [ 71.417591][ T9773] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 71.423663][ T9773] __x64_sys_sendmsg+0x78/0xb0 [ 71.428428][ T9773] do_syscall_64+0xfd/0x6a0 [ 71.432911][ T9773] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.438791][ T9773] RIP: 0033:0x441b59 [ 71.442665][ T9773] 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 [ 71.462246][ T9773] RSP: 002b:00007ffdf70ba7c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 71.470634][ T9773] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 71.478586][ T9773] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 71.486547][ T9773] RBP: 00007ffdf70ba7e0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 71.494496][ T9773] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 71.502446][ T9773] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 71.510400][ T9773] Modules linked in: [ 71.516983][ T9773] ---[ end trace f60cc9ee52da52c0 ]--- [ 71.522510][ T9773] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 71.528510][ T9773] 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 [ 71.548134][ T9773] RSP: 0018:ffff888093a1f450 EFLAGS: 00010246 [ 71.554267][ T9773] RAX: dffffc0000000000 RBX: ffff8880a3f04480 RCX: ffffffff8159b2aa [ 71.562252][ T9773] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880a3f047e8 [ 71.570230][ T9773] RBP: ffff888093a1f468 R08: 0000000000000004 R09: ffffed1012743e7d [ 71.578227][ T9773] R10: ffffed1012743e7c R11: 0000000000000003 R12: 0000000000000000 [ 71.586302][ T9773] R13: 0000000000000000 R14: ffff8880a3f047e0 R15: ffff8880a3f04740 [ 71.594307][ T9773] FS: 0000555555725880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.603351][ T9773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.609987][ T9773] CR2: 0000000020000610 CR3: 000000009fe68000 CR4: 00000000001406e0 [ 71.617975][ T9773] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.625929][ T9773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.633927][ T9773] Kernel panic - not syncing: Fatal exception [ 71.641408][ T9773] Kernel Offset: disabled [ 71.645760][ T9773] Rebooting in 86400 seconds..