[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 41.996519] audit: type=1800 audit(1547309292.547:25): pid=7880 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.031163] audit: type=1800 audit(1547309292.547:26): pid=7880 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.057661] audit: type=1800 audit(1547309292.557:27): pid=7880 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.101' (ECDSA) to the list of known hosts. 2019/01/12 16:08:21 parsed 1 programs 2019/01/12 16:08:22 executed programs: 0 syzkaller login: [ 52.224225] IPVS: ftp: loaded support on port[0] = 21 [ 52.288980] chnl_net:caif_netlink_parms(): no params data found [ 52.321449] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.328287] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.335443] device bridge_slave_0 entered promiscuous mode [ 52.342770] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.349157] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.356280] device bridge_slave_1 entered promiscuous mode [ 52.371669] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.380997] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.398284] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.406063] team0: Port device team_slave_0 added [ 52.411378] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.418630] team0: Port device team_slave_1 added [ 52.424009] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.431219] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.494172] device hsr_slave_0 entered promiscuous mode [ 52.532493] device hsr_slave_1 entered promiscuous mode [ 52.582931] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.589820] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.603721] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.610107] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.617244] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.623639] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.657101] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 52.663233] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.671046] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.679584] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.699102] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.717153] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.724288] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.734601] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.740649] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.749344] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.757228] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.763608] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.783625] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.791201] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.797574] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.805178] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.813250] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.820731] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.829827] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.837447] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.849271] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 52.855384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.867426] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.878836] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.996892] kasan: CONFIG_KASAN_INLINE enabled [ 53.001575] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.009036] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 53.015286] CPU: 0 PID: 8064 Comm: syz-executor0 Not tainted 5.0.0-rc1+ #21 [ 53.022370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.031744] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.037274] 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 [ 53.056166] RSP: 0018:ffff8880a936f120 EFLAGS: 00010203 [ 53.061519] RAX: dffffc0000000000 RBX: ffff888087f51240 RCX: 0000000000000000 [ 53.068776] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 53.076035] RBP: ffff8880a936f3e8 R08: ffff8880a5e44340 R09: ffff888082440f50 [ 53.083293] R10: fffffbfff14a1198 R11: ffffffff8a508cc3 R12: ffff88808a8bbbe0 [ 53.090553] R13: ffff888082440f00 R14: ffff888087f516a0 R15: 0000000000000000 [ 53.097831] FS: 00007f51f34d9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.106059] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.111925] CR2: 0000000000000000 CR3: 0000000089306000 CR4: 00000000001406f0 [ 53.119190] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.126444] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.133703] Call Trace: [ 53.136288] ? __kmalloc_reserve.isra.0+0x40/0xe0 [ 53.141122] ? netlink_dump+0x7be/0x1070 [ 53.145186] ? smc_diag_handler_dump+0x350/0x350 [ 53.149948] ? ___sys_sendmsg+0x7ec/0x910 [ 53.154087] ? __sys_sendmsg+0x112/0x270 [ 53.158138] ? __x64_sys_sendmsg+0x78/0xb0 [ 53.162383] ? do_syscall_64+0x1a3/0x800 [ 53.166440] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.171797] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.177345] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.182891] ? check_preemption_disabled+0x48/0x290 [ 53.187932] ? __lock_is_held+0xb6/0x140 [ 53.192004] ? __kmalloc_node_track_caller+0x3d/0x70 [ 53.197114] ? lock_acquire+0x1db/0x570 [ 53.201079] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 53.206177] ? lock_release+0xc40/0xc40 [ 53.210147] ? kasan_kmalloc+0x9/0x10 [ 53.213938] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.219478] ? kasan_check_write+0x14/0x20 [ 53.223714] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 53.228759] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 53.233784] ? find_held_lock+0x35/0x120 [ 53.237843] smc_diag_dump+0x27/0x80 [ 53.241551] netlink_dump+0x5f2/0x1070 [ 53.245432] ? netlink_broadcast+0x50/0x50 [ 53.249667] __netlink_dump_start+0x5b4/0x7e0 [ 53.254175] smc_diag_handler_dump+0x2a7/0x350 [ 53.258754] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 53.263413] ? lock_downgrade+0x910/0x910 [ 53.267553] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 53.272751] ? rcu_read_unlock_special+0x380/0x380 [ 53.277694] sock_diag_rcv_msg+0x322/0x410 [ 53.281939] netlink_rcv_skb+0x17d/0x410 [ 53.286020] ? sock_diag_bind+0x80/0x80 [ 53.289986] ? netlink_ack+0xba0/0xba0 [ 53.293876] sock_diag_rcv+0x2b/0x40 [ 53.297584] netlink_unicast+0x574/0x770 [ 53.301640] ? netlink_attachskb+0x980/0x980 [ 53.306042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.311572] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.316603] netlink_sendmsg+0xa05/0xf90 [ 53.320673] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.326224] ? netlink_unicast+0x770/0x770 [ 53.330480] ? smack_socket_sendmsg+0xb1/0x1a0 [ 53.335063] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.340593] ? security_socket_sendmsg+0x93/0xc0 [ 53.345357] ? netlink_unicast+0x770/0x770 [ 53.349588] sock_sendmsg+0xdd/0x130 [ 53.353295] ___sys_sendmsg+0x7ec/0x910 [ 53.357265] ? copy_msghdr_from_user+0x570/0x570 [ 53.362016] ? iterate_fd+0x4b0/0x4b0 [ 53.365817] ? __might_fault+0x12b/0x1e0 [ 53.369871] ? find_held_lock+0x35/0x120 [ 53.373925] ? __might_fault+0x12b/0x1e0 [ 53.377981] ? __fget_light+0x2db/0x420 [ 53.381947] ? fget_raw+0x20/0x20 [ 53.385393] ? lock_release+0xc40/0xc40 [ 53.389364] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.394488] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.400038] ? __fdget+0x1b/0x20 [ 53.403398] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.408928] ? sockfd_lookup_light+0xc2/0x160 [ 53.413460] __sys_sendmsg+0x112/0x270 [ 53.417355] ? __ia32_sys_shutdown+0x80/0x80 [ 53.421768] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.427138] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.432233] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.436991] __x64_sys_sendmsg+0x78/0xb0 [ 53.441048] do_syscall_64+0x1a3/0x800 [ 53.444933] ? syscall_return_slowpath+0x5f0/0x5f0 [ 53.449870] ? prepare_exit_to_usermode+0x232/0x3b0 [ 53.454880] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.459719] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.464897] RIP: 0033:0x457ec9 [ 53.468083] 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 [ 53.486972] RSP: 002b:00007f51f34d8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.494673] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 53.501932] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 [ 53.509192] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 53.516468] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51f34d96d4 [ 53.523755] R13: 00000000004c52f9 R14: 00000000004d8d58 R15: 00000000ffffffff [ 53.531034] Modules linked in: [ 53.535381] ---[ end trace 3baa2005ae82f769 ]--- [ 53.540151] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.545701] 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 [ 53.564628] RSP: 0018:ffff8880a936f120 EFLAGS: 00010203 [ 53.569981] RAX: dffffc0000000000 RBX: ffff888087f51240 RCX: 0000000000000000 [ 53.577277] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 53.584572] RBP: ffff8880a936f3e8 R08: ffff8880a5e44340 R09: ffff888082440f50 [ 53.591830] R10: fffffbfff14a1198 R11: ffffffff8a508cc3 R12: ffff88808a8bbbe0 [ 53.599122] R13: ffff888082440f00 R14: ffff888087f516a0 R15: 0000000000000000 [ 53.606431] FS: 00007f51f34d9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.614697] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.620570] CR2: 0000000000000000 CR3: 0000000089306000 CR4: 00000000001406f0 [ 53.627849] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.635130] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.642408] Kernel panic - not syncing: Fatal exception [ 53.648706] Kernel Offset: disabled [ 53.652328] Rebooting in 86400 seconds..