[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.279048] audit: type=1800 audit(1546508249.586:25): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.315800] audit: type=1800 audit(1546508249.586:26): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.343278] audit: type=1800 audit(1546508249.586:27): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.82' (ECDSA) to the list of known hosts. 2019/01/03 09:38:39 parsed 1 programs 2019/01/03 09:38:40 executed programs: 0 syzkaller login: [ 109.045894] IPVS: ftp: loaded support on port[0] = 21 [ 109.109787] chnl_net:caif_netlink_parms(): no params data found [ 109.144060] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.150995] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.158317] device bridge_slave_0 entered promiscuous mode [ 109.165659] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.172113] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.179110] device bridge_slave_1 entered promiscuous mode [ 109.196674] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 109.206218] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 109.223677] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 109.231559] team0: Port device team_slave_0 added [ 109.237004] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 109.244282] team0: Port device team_slave_1 added [ 109.249581] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 109.256776] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 109.310472] device hsr_slave_0 entered promiscuous mode [ 109.378183] device hsr_slave_1 entered promiscuous mode [ 109.448884] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 109.455788] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 109.470154] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.476554] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.483460] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.489853] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.523906] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 109.530192] 8021q: adding VLAN 0 to HW filter on device bond0 [ 109.538654] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 109.547153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 109.566604] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.574014] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.582513] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 109.592321] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 109.598556] 8021q: adding VLAN 0 to HW filter on device team0 [ 109.606768] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 109.616274] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.622678] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.633085] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 109.640874] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.647199] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.667362] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 109.677407] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 109.689180] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 109.696515] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 109.704802] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 109.712596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 109.720654] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 109.728448] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 109.735342] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 109.747784] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 109.758733] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 110.437238] kasan: CONFIG_KASAN_INLINE enabled [ 110.442254] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 110.449680] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 110.456103] CPU: 1 PID: 8149 Comm: syz-executor0 Not tainted 4.20.0+ #5 [ 110.462841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.473037] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 110.478559] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 08 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 b4 [ 110.497460] RSP: 0018:ffff8880a3a5f120 EFLAGS: 00010203 [ 110.502803] RAX: dffffc0000000000 RBX: ffff88808db3a100 RCX: 0000000000000000 [ 110.510066] RDX: 0000000000000001 RSI: ffffffff87b94262 RDI: 000000000000000e [ 110.517319] RBP: ffff8880a3a5f3e8 R08: ffff88808bdb4400 R09: ffff8880a8461e58 [ 110.524568] R10: ffffed101508c3c0 R11: ffff8880a8461e07 R12: ffff8880a7b30b20 [ 110.531829] R13: ffff8880a8461e08 R14: ffff88808db3a560 R15: 0000000000000000 [ 110.539083] FS: 00007fec18a2e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 110.547294] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.553159] CR2: 0000000000000000 CR3: 0000000097f2d000 CR4: 00000000001406e0 [ 110.560489] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.567755] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 110.575098] Call Trace: [ 110.577672] ? __kmalloc_node_track_caller+0x51/0x80 [ 110.582759] ? __alloc_skb+0x1c5/0x730 [ 110.586629] ? smc_diag_handler_dump+0x350/0x350 [ 110.591363] ? sock_sendmsg+0xdd/0x130 [ 110.595231] ? ___sys_sendmsg+0x7ec/0x910 [ 110.599464] ? __sys_sendmsg+0x112/0x270 [ 110.603513] ? __x64_sys_sendmsg+0x60/0xb0 [ 110.607857] ? do_syscall_64+0x1a3/0x800 [ 110.612016] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.617543] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.623067] ? check_preemption_disabled+0x48/0x290 [ 110.628133] ? __lock_is_held+0xb6/0x140 [ 110.632254] ? lock_acquire+0x1db/0x570 [ 110.636219] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 110.641303] ? lock_release+0xc40/0xc40 [ 110.645259] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 110.650781] ? kasan_check_write+0x14/0x20 [ 110.655002] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 110.659999] ? __smc_diag_dump.isra.0+0x2b80/0x2b80 [ 110.664995] ? find_held_lock+0x35/0x120 [ 110.669043] smc_diag_dump+0x27/0x80 [ 110.672753] netlink_dump+0x5f2/0x1070 [ 110.676622] ? netlink_broadcast+0x50/0x50 [ 110.680851] __netlink_dump_start+0x5b4/0x7e0 [ 110.685331] smc_diag_handler_dump+0x2a7/0x350 [ 110.689893] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 110.694716] ? lock_downgrade+0x910/0x910 [ 110.698850] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 110.704133] ? rcu_read_unlock_special+0x380/0x380 [ 110.709158] sock_diag_rcv_msg+0x322/0x410 [ 110.713377] netlink_rcv_skb+0x17d/0x410 [ 110.717421] ? sock_diag_bind+0x80/0x80 [ 110.721376] ? netlink_ack+0xba0/0xba0 [ 110.725249] sock_diag_rcv+0x2b/0x40 [ 110.728942] netlink_unicast+0x574/0x770 [ 110.732992] ? netlink_attachskb+0x980/0x980 [ 110.737390] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.742917] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 110.748020] netlink_sendmsg+0xa05/0xf90 [ 110.752067] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 110.757587] ? netlink_unicast+0x770/0x770 [ 110.761804] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 110.766633] ? apparmor_socket_sendmsg+0x2a/0x30 [ 110.771368] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.776886] ? security_socket_sendmsg+0x93/0xc0 [ 110.781727] ? netlink_unicast+0x770/0x770 [ 110.785952] sock_sendmsg+0xdd/0x130 [ 110.789648] ___sys_sendmsg+0x7ec/0x910 [ 110.793731] ? copy_msghdr_from_user+0x570/0x570 [ 110.798489] ? iterate_fd+0x4b0/0x4b0 [ 110.802272] ? ___might_sleep+0x1e7/0x310 [ 110.806400] ? __might_fault+0x12b/0x1e0 [ 110.810439] ? find_held_lock+0x35/0x120 [ 110.814477] ? __might_fault+0x12b/0x1e0 [ 110.818515] ? __fget_light+0x2db/0x420 [ 110.822586] ? fget_raw+0x20/0x20 [ 110.826023] ? lock_release+0xc40/0xc40 [ 110.829980] ? trace_hardirqs_off_caller+0x300/0x300 [ 110.835068] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.840587] ? __fdget+0x1b/0x20 [ 110.843940] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 110.849460] ? sockfd_lookup_light+0xc2/0x160 [ 110.853938] __sys_sendmsg+0x112/0x270 [ 110.857805] ? __ia32_sys_shutdown+0x80/0x80 [ 110.862206] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 110.867557] ? trace_hardirqs_off_caller+0x300/0x300 [ 110.872649] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 110.877395] __x64_sys_sendmsg+0x78/0xb0 [ 110.881439] do_syscall_64+0x1a3/0x800 [ 110.885315] ? syscall_return_slowpath+0x5f0/0x5f0 [ 110.890246] ? prepare_exit_to_usermode+0x232/0x3b0 [ 110.895250] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.900079] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 110.905256] RIP: 0033:0x457ec9 [ 110.908448] Code: 6d 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 110.927354] RSP: 002b:00007fec18a2dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 110.935043] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 110.942292] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007 [ 110.949545] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 110.956795] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fec18a2e6d4 [ 110.964049] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 110.971301] Modules linked in: [ 110.974591] ---[ end trace de58b1ac6ddbe371 ]--- [ 110.979369] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 110.984898] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 08 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 b4 [ 111.003924] RSP: 0018:ffff8880a3a5f120 EFLAGS: 00010203 [ 111.009289] RAX: dffffc0000000000 RBX: ffff88808db3a100 RCX: 0000000000000000 [ 111.016545] RDX: 0000000000000001 RSI: ffffffff87b94262 RDI: 000000000000000e [ 111.023834] RBP: ffff8880a3a5f3e8 R08: ffff88808bdb4400 R09: ffff8880a8461e58 [ 111.031120] R10: ffffed101508c3c0 R11: ffff8880a8461e07 R12: ffff8880a7b30b20 [ 111.038386] R13: ffff8880a8461e08 R14: ffff88808db3a560 R15: 0000000000000000 [ 111.045690] FS: 00007fec18a2e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 111.053937] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 111.059824] CR2: 0000000000000000 CR3: 0000000097f2d000 CR4: 00000000001406e0 [ 111.067086] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 111.074366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 111.081636] Kernel panic - not syncing: Fatal exception [ 111.087986] Kernel Offset: disabled [ 111.091608] Rebooting in 86400 seconds..