[....] 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. [ 62.974753][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 62.974763][ T26] audit: type=1800 audit(1567864311.824:29): pid=9645 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 [ 63.000999][ T26] audit: type=1800 audit(1567864311.824:30): pid=9645 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 '10.128.0.112' (ECDSA) to the list of known hosts. syzkaller login: [ 85.109720][ T9797] IPVS: ftp: loaded support on port[0] = 21 [ 85.152118][ T9797] chnl_net:caif_netlink_parms(): no params data found [ 85.173146][ T9797] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.180312][ T9797] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.187873][ T9797] device bridge_slave_0 entered promiscuous mode [ 85.194947][ T9797] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.202053][ T9797] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.209539][ T9797] device bridge_slave_1 entered promiscuous mode [ 85.223281][ T9797] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.233553][ T9797] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.249514][ T9797] team0: Port device team_slave_0 added [ 85.255852][ T9797] team0: Port device team_slave_1 added [ 85.328635][ T9797] device hsr_slave_0 entered promiscuous mode [ 85.397208][ T9797] device hsr_slave_1 entered promiscuous mode [ 85.471934][ T9797] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.479035][ T9797] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.486298][ T9797] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.493407][ T9797] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.516971][ T9797] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.526695][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 85.546028][ T3013] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.553499][ T3013] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.561551][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 85.571220][ T9797] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.580460][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 85.588965][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.595987][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.612804][ T9797] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 85.623325][ T9797] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 85.634978][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 85.643509][ T3013] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.650584][ T3013] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.658517][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready executing program [ 85.666804][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 85.675097][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 85.683321][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 85.691500][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 85.699006][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 85.712065][ T9797] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.738850][ T9797] netlink: 24 bytes leftover after parsing attributes in process `syz-executor189'. [ 85.748745][ T9797] kasan: CONFIG_KASAN_INLINE enabled [ 85.754009][ T9797] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 85.762799][ T9797] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 85.769733][ T9797] CPU: 0 PID: 9797 Comm: syz-executor189 Not tainted 5.3.0-rc7+ #0 [ 85.777601][ T9797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.787665][ T9797] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 85.793622][ T9797] 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 [ 85.813213][ T9797] RSP: 0018:ffff888094f97450 EFLAGS: 00010246 [ 85.819267][ T9797] RAX: dffffc0000000000 RBX: ffff88809fefd200 RCX: ffffffff8159b2aa [ 85.827216][ T9797] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809fefd568 [ 85.835171][ T9797] RBP: ffff888094f97468 R08: 0000000000000004 R09: ffffed10129f2e7d [ 85.843122][ T9797] R10: ffffed10129f2e7c R11: 0000000000000003 R12: 0000000000000000 [ 85.851082][ T9797] R13: 0000000000000000 R14: ffff88809fefd560 R15: ffff88809fefd4c0 [ 85.859119][ T9797] FS: 00005555560b4880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 85.868019][ T9797] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.874584][ T9797] CR2: 0000000020000610 CR3: 00000000a6439000 CR4: 00000000001406f0 [ 85.882532][ T9797] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.890475][ T9797] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.898424][ T9797] Call Trace: [ 85.901694][ T9797] cbs_destroy+0x7d/0x2a0 [ 85.905996][ T9797] ? cbs_init+0x25d/0x450 [ 85.910302][ T9797] ? cbs_dequeue_soft+0x410/0x410 [ 85.915299][ T9797] qdisc_create+0xbc6/0x1210 [ 85.919863][ T9797] ? tc_get_qdisc+0xc10/0xc10 [ 85.924513][ T9797] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 85.930733][ T9797] ? qdisc_match_from_root+0x18a/0x280 [ 85.936165][ T9797] tc_modify_qdisc+0x524/0x1c50 [ 85.941001][ T9797] ? qdisc_create+0x1210/0x1210 [ 85.945827][ T9797] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 85.950915][ T9797] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 85.957128][ T9797] ? qdisc_create+0x1210/0x1210 [ 85.961953][ T9797] rtnetlink_rcv_msg+0x463/0xb00 [ 85.966865][ T9797] ? rtnetlink_put_metrics+0x580/0x580 [ 85.972315][ T9797] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 85.977579][ T9797] ? __copy_skb_header+0x250/0x550 [ 85.982763][ T9797] netlink_rcv_skb+0x177/0x450 [ 85.987512][ T9797] ? rtnetlink_put_metrics+0x580/0x580 [ 85.992944][ T9797] ? netlink_ack+0xb30/0xb30 [ 85.997511][ T9797] ? netlink_deliver_tap+0x254/0xbf0 [ 86.002773][ T9797] rtnetlink_rcv+0x1d/0x30 [ 86.007176][ T9797] netlink_unicast+0x531/0x710 [ 86.011914][ T9797] ? netlink_attachskb+0x7c0/0x7c0 [ 86.017005][ T9797] ? _copy_from_iter_full+0x25d/0x8a0 [ 86.022371][ T9797] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 86.028069][ T9797] ? __check_object_size+0x3d/0x437 [ 86.033243][ T9797] netlink_sendmsg+0x8a5/0xd60 [ 86.037981][ T9797] ? netlink_unicast+0x710/0x710 [ 86.042892][ T9797] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 86.048410][ T9797] ? apparmor_socket_sendmsg+0x2a/0x30 [ 86.053845][ T9797] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.060059][ T9797] ? security_socket_sendmsg+0x8d/0xc0 [ 86.065489][ T9797] ? netlink_unicast+0x710/0x710 [ 86.070402][ T9797] sock_sendmsg+0xd7/0x130 [ 86.074791][ T9797] ___sys_sendmsg+0x803/0x920 [ 86.079444][ T9797] ? copy_msghdr_from_user+0x440/0x440 [ 86.084892][ T9797] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 86.091135][ T9797] ? tomoyo_path_number_perm+0x263/0x520 [ 86.096741][ T9797] ? sock_ioctl+0x489/0x780 [ 86.101219][ T9797] ? dlci_ioctl_set+0x40/0x40 [ 86.105876][ T9797] ? dlci_ioctl_set+0x40/0x40 [ 86.110532][ T9797] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.116749][ T9797] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.122968][ T9797] ? __fget_light+0x1a9/0x230 [ 86.127634][ T9797] ? __fdget+0x1b/0x20 [ 86.131678][ T9797] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 86.137894][ T9797] __sys_sendmsg+0x105/0x1d0 [ 86.142458][ T9797] ? __sys_sendmsg_sock+0xd0/0xd0 [ 86.147478][ T9797] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 86.153525][ T9797] __x64_sys_sendmsg+0x78/0xb0 [ 86.158272][ T9797] do_syscall_64+0xfd/0x6a0 [ 86.162763][ T9797] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.168639][ T9797] RIP: 0033:0x441b59 [ 86.172508][ T9797] 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 [ 86.192173][ T9797] RSP: 002b:00007ffe3b832288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.200560][ T9797] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 86.208514][ T9797] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 86.216463][ T9797] RBP: 00007ffe3b8322a0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 86.224411][ T9797] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 86.232362][ T9797] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 86.240310][ T9797] Modules linked in: [ 86.244468][ T9797] ---[ end trace c95df0d9b2c3349f ]--- [ 86.249949][ T9797] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 86.255902][ T9797] 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 [ 86.275541][ T9797] RSP: 0018:ffff888094f97450 EFLAGS: 00010246 [ 86.281619][ T9797] RAX: dffffc0000000000 RBX: ffff88809fefd200 RCX: ffffffff8159b2aa [ 86.289601][ T9797] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809fefd568 [ 86.297577][ T9797] RBP: ffff888094f97468 R08: 0000000000000004 R09: ffffed10129f2e7d [ 86.305528][ T9797] R10: ffffed10129f2e7c R11: 0000000000000003 R12: 0000000000000000 [ 86.313519][ T9797] R13: 0000000000000000 R14: ffff88809fefd560 R15: ffff88809fefd4c0 [ 86.321500][ T9797] FS: 00005555560b4880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 86.330437][ T9797] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.337038][ T9797] CR2: 0000000020000610 CR3: 00000000a6439000 CR4: 00000000001406f0 [ 86.345001][ T9797] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.352982][ T9797] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.360959][ T9797] Kernel panic - not syncing: Fatal exception [ 86.368432][ T9797] Kernel Offset: disabled [ 86.372757][ T9797] Rebooting in 86400 seconds..