[....] 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. [ 64.788608][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 64.788620][ T26] audit: type=1800 audit(1567865833.396:29): pid=9664 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 [ 64.815161][ T26] audit: type=1800 audit(1567865833.396:30): pid=9664 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 '10.128.0.196' (ECDSA) to the list of known hosts. syzkaller login: [ 75.496273][ T9820] IPVS: ftp: loaded support on port[0] = 21 [ 75.548107][ T9820] chnl_net:caif_netlink_parms(): no params data found [ 75.570109][ T9820] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.577273][ T9820] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.584823][ T9820] device bridge_slave_0 entered promiscuous mode [ 75.591991][ T9820] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.599240][ T9820] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.606887][ T9820] device bridge_slave_1 entered promiscuous mode [ 75.619735][ T9820] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.630201][ T9820] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.646210][ T9820] team0: Port device team_slave_0 added [ 75.653779][ T9820] team0: Port device team_slave_1 added [ 75.703585][ T9820] device hsr_slave_0 entered promiscuous mode [ 75.772161][ T9820] device hsr_slave_1 entered promiscuous mode [ 75.856803][ T9820] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.864052][ T9820] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.871315][ T9820] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.878400][ T9820] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.901937][ T9820] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.911575][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.921777][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.929637][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.937215][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.947247][ T9820] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.956444][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.964740][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.971905][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.982599][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.990781][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.997854][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.009186][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.018037][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.027844][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.040332][ T9820] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network executing program [ 76.051415][ T9820] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.063273][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.071602][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.079805][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.094145][ T9820] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.120895][ T9820] kasan: CONFIG_KASAN_INLINE enabled [ 76.126764][ T9820] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 76.135008][ T9820] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 76.141944][ T9820] CPU: 0 PID: 9820 Comm: syz-executor102 Not tainted 5.3.0-rc7+ #0 [ 76.149828][ T9820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.159891][ T9820] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 76.165866][ T9820] 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 [ 76.185448][ T9820] RSP: 0018:ffff8880a6557450 EFLAGS: 00010246 [ 76.191514][ T9820] RAX: dffffc0000000000 RBX: ffff88809aa596c0 RCX: ffffffff8159b2aa [ 76.199477][ T9820] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809aa59a28 [ 76.207452][ T9820] RBP: ffff8880a6557468 R08: 0000000000000004 R09: ffffed1014caae7d [ 76.215405][ T9820] R10: ffffed1014caae7c R11: 0000000000000003 R12: 0000000000000000 [ 76.223360][ T9820] R13: 0000000000000000 R14: ffff88809aa59a20 R15: ffff88809aa59980 [ 76.231324][ T9820] FS: 0000555556239880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 76.240232][ T9820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.246797][ T9820] CR2: 0000000020000610 CR3: 0000000090b5f000 CR4: 00000000001406f0 [ 76.254836][ T9820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.263310][ T9820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.271269][ T9820] Call Trace: [ 76.274548][ T9820] cbs_destroy+0x7d/0x2a0 [ 76.278858][ T9820] ? cbs_init+0x25d/0x450 [ 76.283173][ T9820] ? cbs_dequeue_soft+0x410/0x410 [ 76.288187][ T9820] qdisc_create+0xbc6/0x1210 [ 76.292758][ T9820] ? tc_get_qdisc+0xc10/0xc10 [ 76.297418][ T9820] ? __nla_parse+0x43/0x60 [ 76.301816][ T9820] tc_modify_qdisc+0x524/0x1c50 [ 76.306650][ T9820] ? qdisc_create+0x1210/0x1210 [ 76.311490][ T9820] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 76.316586][ T9820] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.322816][ T9820] ? qdisc_create+0x1210/0x1210 [ 76.327650][ T9820] rtnetlink_rcv_msg+0x463/0xb00 [ 76.332575][ T9820] ? rtnetlink_put_metrics+0x580/0x580 [ 76.338018][ T9820] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 76.343286][ T9820] ? __copy_skb_header+0x250/0x550 [ 76.348383][ T9820] netlink_rcv_skb+0x177/0x450 [ 76.353131][ T9820] ? rtnetlink_put_metrics+0x580/0x580 [ 76.358580][ T9820] ? netlink_ack+0xb30/0xb30 [ 76.363162][ T9820] ? netlink_deliver_tap+0x254/0xbf0 [ 76.368433][ T9820] rtnetlink_rcv+0x1d/0x30 [ 76.372838][ T9820] netlink_unicast+0x531/0x710 [ 76.377584][ T9820] ? netlink_attachskb+0x7c0/0x7c0 [ 76.382685][ T9820] ? _copy_from_iter_full+0x25d/0x8a0 [ 76.388040][ T9820] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 76.393829][ T9820] ? __check_object_size+0x3d/0x437 [ 76.399024][ T9820] netlink_sendmsg+0x8a5/0xd60 [ 76.403772][ T9820] ? netlink_unicast+0x710/0x710 [ 76.408690][ T9820] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 76.414232][ T9820] ? apparmor_socket_sendmsg+0x2a/0x30 [ 76.419672][ T9820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.425891][ T9820] ? security_socket_sendmsg+0x8d/0xc0 [ 76.431331][ T9820] ? netlink_unicast+0x710/0x710 [ 76.436262][ T9820] sock_sendmsg+0xd7/0x130 [ 76.440659][ T9820] ___sys_sendmsg+0x803/0x920 [ 76.445318][ T9820] ? copy_msghdr_from_user+0x440/0x440 [ 76.450757][ T9820] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 76.456978][ T9820] ? tomoyo_path_number_perm+0x263/0x520 [ 76.462592][ T9820] ? sock_ioctl+0x489/0x780 [ 76.467078][ T9820] ? dlci_ioctl_set+0x40/0x40 [ 76.471750][ T9820] ? dlci_ioctl_set+0x40/0x40 [ 76.476412][ T9820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.482636][ T9820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.488856][ T9820] ? __fget_light+0x1a9/0x230 [ 76.493524][ T9820] ? __fdget+0x1b/0x20 [ 76.497587][ T9820] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.503811][ T9820] __sys_sendmsg+0x105/0x1d0 [ 76.508396][ T9820] ? __sys_sendmsg_sock+0xd0/0xd0 [ 76.513412][ T9820] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 76.519463][ T9820] __x64_sys_sendmsg+0x78/0xb0 [ 76.524219][ T9820] do_syscall_64+0xfd/0x6a0 [ 76.528713][ T9820] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.534584][ T9820] RIP: 0033:0x441b59 [ 76.538461][ T9820] 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 [ 76.558045][ T9820] RSP: 002b:00007ffc9df44038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.566446][ T9820] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 76.574408][ T9820] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 76.582469][ T9820] RBP: 00007ffc9df44050 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 76.590425][ T9820] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 76.598381][ T9820] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 76.606346][ T9820] Modules linked in: [ 76.610317][ T9820] ---[ end trace 86d432411716de83 ]--- [ 76.615810][ T9820] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 76.621775][ T9820] 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 [ 76.641409][ T9820] RSP: 0018:ffff8880a6557450 EFLAGS: 00010246 [ 76.647500][ T9820] RAX: dffffc0000000000 RBX: ffff88809aa596c0 RCX: ffffffff8159b2aa [ 76.655606][ T9820] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809aa59a28 [ 76.663593][ T9820] RBP: ffff8880a6557468 R08: 0000000000000004 R09: ffffed1014caae7d [ 76.671545][ T9820] R10: ffffed1014caae7c R11: 0000000000000003 R12: 0000000000000000 [ 76.679533][ T9820] R13: 0000000000000000 R14: ffff88809aa59a20 R15: ffff88809aa59980 [ 76.687632][ T9820] FS: 0000555556239880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 76.696578][ T9820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.703181][ T9820] CR2: 0000000020000610 CR3: 0000000090b5f000 CR4: 00000000001406f0 [ 76.711132][ T9820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.719115][ T9820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.727216][ T9820] Kernel panic - not syncing: Fatal exception [ 76.735005][ T9820] Kernel Offset: disabled [ 76.739345][ T9820] Rebooting in 86400 seconds..