[....] 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. [ 61.089659][ T25] kauditd_printk_skb: 7 callbacks suppressed [ 61.089668][ T25] audit: type=1800 audit(1567859876.085:29): pid=9551 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 [ 61.122095][ T25] audit: type=1800 audit(1567859876.085:30): pid=9551 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 '10.128.1.37' (ECDSA) to the list of known hosts. 2019/09/07 12:38:04 parsed 1 programs 2019/09/07 12:38:05 executed programs: 0 syzkaller login: [ 70.747519][ T9718] IPVS: ftp: loaded support on port[0] = 21 [ 70.793094][ T9718] chnl_net:caif_netlink_parms(): no params data found [ 70.814561][ T9718] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.821739][ T9718] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.829195][ T9718] device bridge_slave_0 entered promiscuous mode [ 70.836747][ T9718] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.843806][ T9718] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.851392][ T9718] device bridge_slave_1 entered promiscuous mode [ 70.864033][ T9718] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.874309][ T9718] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.889955][ T9718] team0: Port device team_slave_0 added [ 70.896407][ T9718] team0: Port device team_slave_1 added [ 70.967633][ T9718] device hsr_slave_0 entered promiscuous mode [ 71.006333][ T9718] device hsr_slave_1 entered promiscuous mode [ 71.051050][ T9718] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.058105][ T9718] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.065343][ T9718] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.072396][ T9718] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.095909][ T9718] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.106945][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.124977][ T41] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.132551][ T41] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.140429][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.149939][ T9718] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.158792][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.167214][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.174235][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.192540][ T9718] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.202943][ T9718] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.214835][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.223355][ T41] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.230421][ T41] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.238331][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.247185][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.255280][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.263426][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.271549][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.279046][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.291826][ T9718] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.487225][ T9970] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. [ 72.511821][ T9975] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 72.519618][ T9975] #PF: supervisor instruction fetch in kernel mode [ 72.526132][ T9975] #PF: error_code(0x0010) - not-present page [ 72.532084][ T9975] PGD a7fe0067 P4D a7fe0067 PUD 8d8b5067 PMD 0 [ 72.538304][ T9975] Oops: 0010 [#1] PREEMPT SMP KASAN [ 72.543506][ T9975] CPU: 0 PID: 9975 Comm: syz-executor.0 Not tainted 5.3.0-rc7+ #0 [ 72.551278][ T9975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.561323][ T9975] RIP: 0010:0x0 [ 72.564766][ T9975] Code: Bad RIP value. [ 72.568815][ T9975] RSP: 0018:ffff88808329f4d8 EFLAGS: 00010246 [ 72.574853][ T9975] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 72.582800][ T9975] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808c072e00 [ 72.590747][ T9975] RBP: ffff88808329f5d0 R08: ffff88808e39a600 R09: ffff88808329f658 [ 72.598696][ T9975] R10: ffffed1010653ed9 R11: ffff88808329f6cf R12: ffff88808c072e00 [ 72.606645][ T9975] R13: 0000000000000001 R14: ffff88808329f5a8 R15: ffffffff882a51a0 [ 72.614606][ T9975] FS: 00007fd6ce7e8700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 72.623510][ T9975] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.630070][ T9975] CR2: ffffffffffffffd6 CR3: 0000000090008000 CR4: 00000000001406f0 [ 72.638022][ T9975] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.645969][ T9975] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.653918][ T9975] Call Trace: [ 72.657187][ T9975] tc_bind_tclass+0x13e/0x2f0 [ 72.661841][ T9975] ? qdisc_class_hash_init+0x110/0x110 [ 72.667277][ T9975] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.673494][ T9975] ? ns_capable_common+0x93/0x100 [ 72.678499][ T9975] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 72.684197][ T9975] ? qdisc_match_from_root+0x18a/0x280 [ 72.689636][ T9975] tc_ctl_tclass+0xadb/0xcd0 [ 72.694202][ T9975] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 72.699984][ T9975] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 72.705076][ T9975] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 72.710163][ T9975] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 72.716380][ T9975] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 72.722169][ T9975] rtnetlink_rcv_msg+0x463/0xb00 [ 72.727085][ T9975] ? rtnetlink_put_metrics+0x580/0x580 [ 72.732525][ T9975] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 72.737784][ T9975] ? __copy_skb_header+0x250/0x550 [ 72.742874][ T9975] netlink_rcv_skb+0x177/0x450 [ 72.747615][ T9975] ? rtnetlink_put_metrics+0x580/0x580 [ 72.753050][ T9975] ? netlink_ack+0xb30/0xb30 [ 72.757618][ T9975] ? netlink_deliver_tap+0x254/0xbf0 [ 72.762880][ T9975] rtnetlink_rcv+0x1d/0x30 [ 72.767275][ T9975] netlink_unicast+0x531/0x710 [ 72.772013][ T9975] ? netlink_attachskb+0x7c0/0x7c0 [ 72.777103][ T9975] ? _copy_from_iter_full+0x25d/0x8a0 [ 72.782454][ T9975] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 72.788155][ T9975] ? __check_object_size+0x3d/0x437 [ 72.793328][ T9975] netlink_sendmsg+0x8a5/0xd60 [ 72.798072][ T9975] ? netlink_unicast+0x710/0x710 [ 72.802988][ T9975] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 72.808512][ T9975] ? apparmor_socket_sendmsg+0x2a/0x30 [ 72.813945][ T9975] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.820161][ T9975] ? security_socket_sendmsg+0x8d/0xc0 [ 72.825594][ T9975] ? netlink_unicast+0x710/0x710 [ 72.830509][ T9975] sock_sendmsg+0xd7/0x130 [ 72.834900][ T9975] ___sys_sendmsg+0x803/0x920 [ 72.839554][ T9975] ? copy_msghdr_from_user+0x440/0x440 [ 72.844989][ T9975] ? __fget+0xa3/0x560 [ 72.849037][ T9975] ? __fget+0x384/0x560 [ 72.853168][ T9975] ? ksys_dup3+0x3e0/0x3e0 [ 72.857569][ T9975] ? __might_fault+0xfb/0x1e0 [ 72.862224][ T9975] ? __fget_light+0x1a9/0x230 [ 72.866879][ T9975] ? __fdget+0x1b/0x20 [ 72.870933][ T9975] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 72.877150][ T9975] __sys_sendmsg+0x105/0x1d0 [ 72.881716][ T9975] ? __sys_sendmsg_sock+0xd0/0xd0 [ 72.886989][ T9975] ? __x64_sys_clock_gettime+0x16d/0x240 [ 72.892597][ T9975] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 72.898643][ T9975] __x64_sys_sendmsg+0x78/0xb0 [ 72.903386][ T9975] do_syscall_64+0xfd/0x6a0 [ 72.907874][ T9975] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.913738][ T9975] RIP: 0033:0x4598e9 [ 72.917612][ T9975] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 72.937188][ T9975] RSP: 002b:00007fd6ce7e7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 72.945572][ T9975] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 [ 72.953522][ T9975] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 72.961475][ T9975] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 72.969424][ T9975] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd6ce7e86d4 [ 72.977371][ T9975] R13: 00000000004c77fb R14: 00000000004dd098 R15: 00000000ffffffff [ 72.985320][ T9975] Modules linked in: [ 72.989190][ T9975] CR2: 0000000000000000 [ 72.995900][ T9975] ---[ end trace ee8857e15bd01650 ]--- [ 73.001802][ T9975] RIP: 0010:0x0 [ 73.005261][ T9975] Code: Bad RIP value. [ 73.009962][ T9975] RSP: 0018:ffff88808329f4d8 EFLAGS: 00010246 [ 73.016707][ T9975] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 73.024667][ T9975] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808c072e00 [ 73.032688][ T9975] RBP: ffff88808329f5d0 R08: ffff88808e39a600 R09: ffff88808329f658 [ 73.040681][ T9975] R10: ffffed1010653ed9 R11: ffff88808329f6cf R12: ffff88808c072e00 [ 73.048674][ T9975] R13: 0000000000000001 R14: ffff88808329f5a8 R15: ffffffff882a51a0 [ 73.056651][ T9975] FS: 00007fd6ce7e8700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 73.065553][ T9975] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.072138][ T9975] CR2: ffffffffffffffd6 CR3: 0000000090008000 CR4: 00000000001406f0 [ 73.080114][ T9975] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.088093][ T9975] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.096073][ T9975] Kernel panic - not syncing: Fatal exception [ 73.103270][ T9975] Kernel Offset: disabled [ 73.107586][ T9975] Rebooting in 86400 seconds..