[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.141220] audit: type=1800 audit(1547309332.256:25): pid=7950 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.178831] audit: type=1800 audit(1547309332.266:26): pid=7950 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.201770] audit: type=1800 audit(1547309332.266:27): pid=7950 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 '10.128.0.191' (ECDSA) to the list of known hosts. 2019/01/12 16:09:03 parsed 1 programs 2019/01/12 16:09:05 executed programs: 0 syzkaller login: [ 54.945176] IPVS: ftp: loaded support on port[0] = 21 [ 55.010898] chnl_net:caif_netlink_parms(): no params data found [ 55.044167] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.050946] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.058723] device bridge_slave_0 entered promiscuous mode [ 55.066185] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.072697] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.080051] device bridge_slave_1 entered promiscuous mode [ 55.097493] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.106460] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.124506] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 55.132031] team0: Port device team_slave_0 added [ 55.137624] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 55.144830] team0: Port device team_slave_1 added [ 55.150040] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 55.157550] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 55.216565] device hsr_slave_0 entered promiscuous mode [ 55.283925] device hsr_slave_1 entered promiscuous mode [ 55.364194] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 55.371089] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 55.385539] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.392001] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.398977] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.405362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.438221] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 55.444749] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.452673] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.462852] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.473243] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.480932] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.488275] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.499528] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 55.505915] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.514442] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.522046] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.528444] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.538335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.546724] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.553050] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.575178] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.583123] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.590866] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.598265] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.607195] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.615573] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 55.621595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.635395] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 55.645588] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.017469] kasan: CONFIG_KASAN_INLINE enabled [ 57.022294] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 57.029769] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 57.036006] CPU: 0 PID: 8406 Comm: syz-executor0 Not tainted 5.0.0-rc1+ #21 [ 57.043097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.052460] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 57.057993] 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 [ 57.077091] RSP: 0018:ffff88808e85f120 EFLAGS: 00010203 [ 57.082454] RAX: dffffc0000000000 RBX: ffff888095ae1300 RCX: 0000000000000000 [ 57.089714] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 57.097002] RBP: ffff88808e85f3e8 R08: ffff88808faa8000 R09: ffff8880917b27f4 [ 57.104279] R10: ffffed10122f64f4 R11: ffff8880917b27a3 R12: ffff888095b4db60 [ 57.111546] R13: ffff8880917b27a4 R14: ffff888095ae1760 R15: 0000000000000000 [ 57.118815] FS: 00007f514d1f9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 57.127037] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.132912] CR2: 0000000000000000 CR3: 0000000094fe5000 CR4: 00000000001406f0 [ 57.140188] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.147463] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.154745] Call Trace: [ 57.157336] ? __kmalloc_reserve.isra.0+0x40/0xe0 [ 57.162191] ? netlink_dump+0x7c5/0x1070 [ 57.166255] ? smc_diag_handler_dump+0x350/0x350 [ 57.171008] ? ___sys_sendmsg+0x7ec/0x910 [ 57.175162] ? __sys_sendmsg+0x112/0x270 [ 57.179228] ? __x64_sys_sendmsg+0x78/0xb0 [ 57.183460] ? do_syscall_64+0x110/0x800 [ 57.187523] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.192911] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.198451] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.204012] ? check_preemption_disabled+0x48/0x290 [ 57.209033] ? __lock_is_held+0xb6/0x140 [ 57.213101] ? __kmalloc_node_track_caller+0x3d/0x70 [ 57.218202] ? lock_acquire+0x1db/0x570 [ 57.222181] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 57.227288] ? lock_release+0xc40/0xc40 [ 57.231279] ? kasan_kmalloc+0x9/0x10 [ 57.235080] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.240613] ? kasan_check_write+0x14/0x20 [ 57.244849] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 57.249863] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 57.254889] ? find_held_lock+0x35/0x120 [ 57.258953] smc_diag_dump+0x27/0x80 [ 57.262669] netlink_dump+0x5f2/0x1070 [ 57.266558] ? netlink_broadcast+0x50/0x50 [ 57.270797] __netlink_dump_start+0x5b4/0x7e0 [ 57.275292] smc_diag_handler_dump+0x2a7/0x350 [ 57.279879] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 57.284545] ? lock_downgrade+0x910/0x910 [ 57.288692] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 57.293883] ? rcu_read_unlock_special+0x380/0x380 [ 57.298831] sock_diag_rcv_msg+0x322/0x410 [ 57.303076] netlink_rcv_skb+0x17d/0x410 [ 57.307138] ? sock_diag_bind+0x80/0x80 [ 57.311108] ? netlink_ack+0xba0/0xba0 [ 57.314998] sock_diag_rcv+0x2b/0x40 [ 57.318710] netlink_unicast+0x574/0x770 [ 57.322770] ? netlink_attachskb+0x980/0x980 [ 57.327202] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.332742] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 57.337759] netlink_sendmsg+0xa05/0xf90 [ 57.341815] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.347355] ? netlink_unicast+0x770/0x770 [ 57.351585] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 57.356427] ? apparmor_socket_sendmsg+0x2a/0x30 [ 57.361192] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.366727] ? security_socket_sendmsg+0x93/0xc0 [ 57.371493] ? netlink_unicast+0x770/0x770 [ 57.375733] sock_sendmsg+0xdd/0x130 [ 57.379445] ___sys_sendmsg+0x7ec/0x910 [ 57.383419] ? copy_msghdr_from_user+0x570/0x570 [ 57.388198] ? iterate_fd+0x4b0/0x4b0 [ 57.392001] ? __might_fault+0x12b/0x1e0 [ 57.396057] ? find_held_lock+0x35/0x120 [ 57.400111] ? __might_fault+0x12b/0x1e0 [ 57.404173] ? __fget_light+0x2db/0x420 [ 57.408150] ? fget_raw+0x20/0x20 [ 57.411599] ? lock_release+0xc40/0xc40 [ 57.415570] ? trace_hardirqs_off_caller+0x300/0x300 [ 57.420673] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.426212] ? __fdget+0x1b/0x20 [ 57.429572] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.435111] ? sockfd_lookup_light+0xc2/0x160 [ 57.439608] __sys_sendmsg+0x112/0x270 [ 57.443494] ? __ia32_sys_shutdown+0x80/0x80 [ 57.447910] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.453294] ? trace_hardirqs_off_caller+0x300/0x300 [ 57.458402] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.463158] __x64_sys_sendmsg+0x78/0xb0 [ 57.467216] do_syscall_64+0x1a3/0x800 [ 57.471105] ? syscall_return_slowpath+0x5f0/0x5f0 [ 57.476031] ? prepare_exit_to_usermode+0x232/0x3b0 [ 57.481046] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.485890] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.491076] RIP: 0033:0x457ec9 [ 57.494266] 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 [ 57.513168] RSP: 002b:00007f514d1f8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 57.520875] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 57.528135] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 [ 57.535397] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 57.542658] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f514d1f96d4 [ 57.549920] R13: 00000000004c52f9 R14: 00000000004d8d58 R15: 00000000ffffffff [ 57.557208] Modules linked in: [ 57.561010] ---[ end trace d21bb8cd567af9bc ]--- [ 57.565826] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 57.571362] 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 [ 57.590317] RSP: 0018:ffff88808e85f120 EFLAGS: 00010203 [ 57.595703] RAX: dffffc0000000000 RBX: ffff888095ae1300 RCX: 0000000000000000 [ 57.603004] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 57.610358] RBP: ffff88808e85f3e8 R08: ffff88808faa8000 R09: ffff8880917b27f4 [ 57.617649] R10: ffffed10122f64f4 R11: ffff8880917b27a3 R12: ffff888095b4db60 [ 57.624951] R13: ffff8880917b27a4 R14: ffff888095ae1760 R15: 0000000000000000 [ 57.632254] FS: 00007f514d1f9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 57.640505] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.646404] CR2: 0000000000000000 CR3: 0000000094fe5000 CR4: 00000000001406f0 [ 57.653691] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.660984] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.668283] Kernel panic - not syncing: Fatal exception [ 57.674606] Kernel Offset: disabled [ 57.678232] Rebooting in 86400 seconds..