[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.875128] audit: type=1800 audit(1546610837.374:25): pid=7957 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 40.913864] audit: type=1800 audit(1546610837.374:26): pid=7957 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 40.958727] audit: type=1800 audit(1546610837.374:27): pid=7957 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 '10.128.0.71' (ECDSA) to the list of known hosts. 2019/01/04 14:07:26 parsed 1 programs 2019/01/04 14:07:28 executed programs: 0 syzkaller login: [ 52.034047] IPVS: ftp: loaded support on port[0] = 21 [ 52.098507] chnl_net:caif_netlink_parms(): no params data found [ 52.133326] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.140252] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.147393] device bridge_slave_0 entered promiscuous mode [ 52.155127] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.161674] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.168889] device bridge_slave_1 entered promiscuous mode [ 52.185782] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.195371] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.213554] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.221262] team0: Port device team_slave_0 added [ 52.226711] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.234061] team0: Port device team_slave_1 added [ 52.239597] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.246894] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.330713] device hsr_slave_0 entered promiscuous mode [ 52.400569] device hsr_slave_1 entered promiscuous mode [ 52.459546] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.466444] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.480923] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.487360] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.494457] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.500859] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.533559] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 52.541231] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.550054] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.558535] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.579090] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.586445] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.594937] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.605478] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.611848] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.620848] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.628480] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.634937] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.644947] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.653298] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.659683] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.680819] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.688927] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.696747] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.709294] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.720156] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 52.726151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.734080] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.742429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.755152] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.765692] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.906429] kasan: CONFIG_KASAN_INLINE enabled [ 52.911290] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 52.918726] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 52.924960] CPU: 1 PID: 8142 Comm: syz-executor0 Not tainted 4.20.0+ #8 [ 52.931699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.941071] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 52.946604] 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 [ 52.965496] RSP: 0018:ffff88808b20f0f0 EFLAGS: 00010203 [ 52.970866] RAX: dffffc0000000000 RBX: ffff88808c52a080 RCX: 0000000000000000 [ 52.978124] RDX: 0000000000000001 RSI: ffffffff87b69662 RDI: 000000000000000e [ 52.985579] RBP: ffff88808b20f3b8 R08: ffff888099234340 R09: ffff8880a6560fd8 [ 52.992850] R10: ffffed1014cac1f0 R11: ffff8880a6560f87 R12: ffff88808f69e7e0 [ 53.000114] R13: ffff8880a6560f88 R14: ffff88808c52a4e0 R15: 0000000000000000 [ 53.007377] FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f7f1eb40 [ 53.015605] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 53.021476] CR2: 00007f86996bc000 CR3: 00000000995f7000 CR4: 00000000001406e0 [ 53.028734] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.035994] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.043250] Call Trace: [ 53.045829] ? __kmalloc_node_track_caller+0x4e/0x70 [ 53.050928] ? __alloc_skb+0x185/0x730 [ 53.054813] ? smc_diag_handler_dump+0x350/0x350 [ 53.059565] ? sock_sendmsg+0xdd/0x130 [ 53.063447] ? ___sys_sendmsg+0x7ec/0x910 [ 53.067585] ? __sys_sendmsg+0x112/0x270 [ 53.071656] ? __x32_compat_sys_getsockopt+0x150/0x150 [ 53.076926] ? do_fast_syscall_32+0x333/0xf98 [ 53.081432] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.086960] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.092491] ? check_preemption_disabled+0x48/0x290 [ 53.097512] ? __lock_is_held+0xb6/0x140 [ 53.101579] ? __kmalloc_node_track_caller+0x3d/0x70 [ 53.106685] ? lock_acquire+0x1db/0x570 [ 53.110668] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 53.116253] ? lock_release+0xc40/0xc40 [ 53.120226] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.125758] ? kasan_check_write+0x14/0x20 [ 53.130005] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 53.135020] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 53.140028] ? find_held_lock+0x35/0x120 [ 53.144085] smc_diag_dump+0x27/0x80 [ 53.147796] netlink_dump+0x5f2/0x1070 [ 53.151681] ? netlink_broadcast+0x50/0x50 [ 53.155919] __netlink_dump_start+0x5b4/0x7e0 [ 53.160410] smc_diag_handler_dump+0x2a7/0x350 [ 53.164986] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 53.169646] ? lock_downgrade+0x910/0x910 [ 53.173787] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 53.178974] ? rcu_read_unlock_special+0x380/0x380 [ 53.183900] sock_diag_rcv_msg+0x322/0x410 [ 53.188132] netlink_rcv_skb+0x17d/0x410 [ 53.192187] ? sock_diag_bind+0x80/0x80 [ 53.196159] ? netlink_ack+0xba0/0xba0 [ 53.200046] sock_diag_rcv+0x2b/0x40 [ 53.203753] netlink_unicast+0x574/0x770 [ 53.207831] ? netlink_attachskb+0x980/0x980 [ 53.212243] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.217770] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.222787] netlink_sendmsg+0xa05/0xf90 [ 53.226863] ? netlink_unicast+0x770/0x770 [ 53.231094] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 53.235929] ? apparmor_socket_sendmsg+0x2a/0x30 [ 53.240715] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.246242] ? security_socket_sendmsg+0x93/0xc0 [ 53.250990] ? netlink_unicast+0x770/0x770 [ 53.255235] sock_sendmsg+0xdd/0x130 [ 53.258944] ___sys_sendmsg+0x7ec/0x910 [ 53.262912] ? copy_msghdr_from_user+0x570/0x570 [ 53.267657] ? iterate_fd+0x4b0/0x4b0 [ 53.271453] ? __might_fault+0x12b/0x1e0 [ 53.275510] ? find_held_lock+0x35/0x120 [ 53.279569] ? __might_fault+0x12b/0x1e0 [ 53.283625] ? __fget_light+0x2db/0x420 [ 53.287592] ? fget_raw+0x20/0x20 [ 53.291039] ? lock_release+0xc40/0xc40 [ 53.295020] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.300137] ? __fdget+0x1b/0x20 [ 53.303513] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.309051] ? sockfd_lookup_light+0xc2/0x160 [ 53.313544] __sys_sendmsg+0x112/0x270 [ 53.317425] ? __ia32_sys_shutdown+0x80/0x80 [ 53.321836] ? entry_SYSENTER_compat+0x70/0x7f [ 53.326411] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.331512] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 53.336272] do_fast_syscall_32+0x333/0xf98 [ 53.340597] ? do_int80_syscall_32+0x880/0x880 [ 53.345169] ? trace_hardirqs_off+0x310/0x310 [ 53.349681] ? syscall_return_slowpath+0x3b0/0x5f0 [ 53.354605] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.359620] ? __switch_to_asm+0x34/0x70 [ 53.363679] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.368526] entry_SYSENTER_compat+0x70/0x7f [ 53.372925] RIP: 0023:0xf7f22869 [ 53.376289] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 53.395176] RSP: 002b:00000000f7f1e0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 [ 53.402885] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000020000040 [ 53.410144] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 53.417399] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 53.424660] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 53.431921] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.439187] Modules linked in: [ 53.443300] ---[ end trace 297d2c5a8666f800 ]--- [ 53.448080] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.453631] 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 [ 53.472558] RSP: 0018:ffff88808b20f0f0 EFLAGS: 00010203 [ 53.477913] RAX: dffffc0000000000 RBX: ffff88808c52a080 RCX: 0000000000000000 [ 53.485188] RDX: 0000000000000001 RSI: ffffffff87b69662 RDI: 000000000000000e [ 53.492472] RBP: ffff88808b20f3b8 R08: ffff888099234340 R09: ffff8880a6560fd8 [ 53.499756] R10: ffffed1014cac1f0 R11: ffff8880a6560f87 R12: ffff88808f69e7e0 [ 53.507046] R13: ffff8880a6560f88 R14: ffff88808c52a4e0 R15: 0000000000000000 [ 53.514331] FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f7f1eb40 [ 53.522572] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 53.528447] CR2: 00007f86996bc000 CR3: 00000000995f7000 CR4: 00000000001406e0 [ 53.535726] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.543006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.550288] Kernel panic - not syncing: Fatal exception [ 53.556579] Kernel Offset: disabled [ 53.560199] Rebooting in 86400 seconds..