[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 41.788723] audit: type=1800 audit(1546627287.430:25): pid=7882 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 41.826562] audit: type=1800 audit(1546627287.440:26): pid=7882 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 41.865820] audit: type=1800 audit(1546627287.440:27): pid=7882 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 '10.128.0.29' (ECDSA) to the list of known hosts. 2019/01/04 18:41:37 parsed 1 programs 2019/01/04 18:41:38 executed programs: 0 syzkaller login: [ 53.234139] IPVS: ftp: loaded support on port[0] = 21 [ 53.298352] chnl_net:caif_netlink_parms(): no params data found [ 53.331921] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.338615] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.345929] device bridge_slave_0 entered promiscuous mode [ 53.353411] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.359882] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.366874] device bridge_slave_1 entered promiscuous mode [ 53.384571] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.393571] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.411991] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 53.419540] team0: Port device team_slave_0 added [ 53.425092] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 53.432308] team0: Port device team_slave_1 added [ 53.437502] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.444924] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.522873] device hsr_slave_0 entered promiscuous mode [ 53.590098] device hsr_slave_1 entered promiscuous mode [ 53.670302] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.677229] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.691384] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.697840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.704926] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.711425] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.745834] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 53.752227] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.761018] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.769478] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.789360] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.797843] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.806574] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.817192] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.823958] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.832433] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.840437] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.846780] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.868602] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.878539] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.889449] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 53.897162] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.905540] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.911929] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.919675] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.927608] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.935332] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.943234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.950781] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.957702] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.971880] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 53.982127] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.152631] kasan: CONFIG_KASAN_INLINE enabled [ 54.157380] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 54.164952] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 54.171205] CPU: 0 PID: 8077 Comm: syz-executor0 Not tainted 4.20.0+ #9 [ 54.177954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.187322] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 54.192872] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 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 d2 [ 54.211777] RSP: 0018:ffff88808f747120 EFLAGS: 00010203 [ 54.217176] RAX: dffffc0000000000 RBX: ffff88809e7be980 RCX: 0000000000000000 [ 54.224456] RDX: 0000000000000001 RSI: ffffffff87b6b452 RDI: 000000000000000e [ 54.231740] RBP: ffff88808f7473e8 R08: ffff88809f054580 R09: ffff8880816b1118 [ 54.239034] R10: ffffed10102d6218 R11: ffff8880816b10c7 R12: ffff8880932ed020 [ 54.246319] R13: ffff8880816b10c8 R14: ffff88809e7bede0 R15: 0000000000000000 [ 54.253605] FS: 00007f9c42176700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 54.261842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.267729] CR2: 00000000004dac90 CR3: 00000000a8739000 CR4: 00000000001406f0 [ 54.275012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.282278] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.289544] Call Trace: [ 54.292133] ? __kmalloc_node_track_caller+0x4e/0x70 [ 54.297241] ? __alloc_skb+0x185/0x730 [ 54.301139] ? smc_diag_handler_dump+0x350/0x350 [ 54.305920] ? sock_sendmsg+0xdd/0x130 [ 54.309811] ? ___sys_sendmsg+0x7ec/0x910 [ 54.313960] ? __sys_sendmsg+0x112/0x270 [ 54.318020] ? __sys_sendmsg+0x230/0x270 [ 54.322099] ? do_syscall_64+0x1a3/0x800 [ 54.326174] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.331729] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.337271] ? check_preemption_disabled+0x48/0x290 [ 54.342299] ? __lock_is_held+0xb6/0x140 [ 54.346359] ? __kmalloc_node_track_caller+0x3d/0x70 [ 54.351462] ? lock_acquire+0x1db/0x570 [ 54.355434] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 54.360537] ? lock_release+0xc40/0xc40 [ 54.364509] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.370057] ? kasan_check_write+0x14/0x20 [ 54.374295] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 54.379312] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 54.384325] ? find_held_lock+0x35/0x120 [ 54.388392] smc_diag_dump+0x27/0x80 [ 54.392110] netlink_dump+0x5f2/0x1070 [ 54.396002] ? netlink_broadcast+0x50/0x50 [ 54.400243] __netlink_dump_start+0x5b4/0x7e0 [ 54.404742] smc_diag_handler_dump+0x2a7/0x350 [ 54.409324] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 54.413992] ? lock_downgrade+0x910/0x910 [ 54.418138] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 54.423333] ? rcu_read_unlock_special+0x380/0x380 [ 54.428264] sock_diag_rcv_msg+0x322/0x410 [ 54.432505] netlink_rcv_skb+0x17d/0x410 [ 54.436566] ? sock_diag_bind+0x80/0x80 [ 54.440539] ? netlink_ack+0xba0/0xba0 [ 54.444434] sock_diag_rcv+0x2b/0x40 [ 54.448165] netlink_unicast+0x574/0x770 [ 54.452243] ? netlink_attachskb+0x980/0x980 [ 54.456655] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.462196] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.467216] netlink_sendmsg+0xa05/0xf90 [ 54.471276] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.476822] ? netlink_unicast+0x770/0x770 [ 54.481068] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 54.485915] ? apparmor_socket_sendmsg+0x2a/0x30 [ 54.490721] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.496271] ? security_socket_sendmsg+0x93/0xc0 [ 54.501028] ? netlink_unicast+0x770/0x770 [ 54.505275] sock_sendmsg+0xdd/0x130 [ 54.509003] ___sys_sendmsg+0x7ec/0x910 [ 54.512984] ? copy_msghdr_from_user+0x570/0x570 [ 54.517739] ? iterate_fd+0x4b0/0x4b0 [ 54.521542] ? __might_fault+0x12b/0x1e0 [ 54.525599] ? find_held_lock+0x35/0x120 [ 54.529657] ? __might_fault+0x12b/0x1e0 [ 54.533727] ? __fget_light+0x2db/0x420 [ 54.537699] ? fget_raw+0x20/0x20 [ 54.541153] ? lock_release+0xc40/0xc40 [ 54.545154] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.550254] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.555801] ? __fdget+0x1b/0x20 [ 54.559169] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.564708] ? sockfd_lookup_light+0xc2/0x160 [ 54.569222] __sys_sendmsg+0x112/0x270 [ 54.573114] ? __ia32_sys_shutdown+0x80/0x80 [ 54.577534] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.582907] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.588017] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.592785] __x64_sys_sendmsg+0x78/0xb0 [ 54.596857] do_syscall_64+0x1a3/0x800 [ 54.600749] ? syscall_return_slowpath+0x5f0/0x5f0 [ 54.605686] ? prepare_exit_to_usermode+0x232/0x3b0 [ 54.611105] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.615961] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.621170] RIP: 0033:0x457ec9 [ 54.624388] 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 [ 54.643292] RSP: 002b:00007f9c42175c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.651005] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 54.658281] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000008 [ 54.665552] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 54.672825] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9c421766d4 [ 54.680108] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 54.687385] Modules linked in: [ 54.691115] ---[ end trace d7e09decd451d347 ]--- [ 54.695909] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 54.701478] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 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 d2 [ 54.720409] RSP: 0018:ffff88808f747120 EFLAGS: 00010203 [ 54.725792] RAX: dffffc0000000000 RBX: ffff88809e7be980 RCX: 0000000000000000 [ 54.733106] RDX: 0000000000000001 RSI: ffffffff87b6b452 RDI: 000000000000000e [ 54.740401] RBP: ffff88808f7473e8 R08: ffff88809f054580 R09: ffff8880816b1118 [ 54.747975] R10: ffffed10102d6218 R11: ffff8880816b10c7 R12: ffff8880932ed020 [ 54.755287] R13: ffff8880816b10c8 R14: ffff88809e7bede0 R15: 0000000000000000 [ 54.762610] FS: 00007f9c42176700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 54.770867] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.776751] CR2: 00000000004dac90 CR3: 00000000a8739000 CR4: 00000000001406f0 [ 54.784061] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.791360] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.798630] Kernel panic - not syncing: Fatal exception [ 54.805001] Kernel Offset: disabled [ 54.808631] Rebooting in 86400 seconds..