[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 38.302428] audit: type=1800 audit(1546828329.098:25): pid=7863 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.339283] audit: type=1800 audit(1546828329.098:26): pid=7863 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.385799] audit: type=1800 audit(1546828329.098:27): pid=7863 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.112' (ECDSA) to the list of known hosts. 2019/01/07 02:32:20 parsed 1 programs 2019/01/07 02:32:21 executed programs: 0 syzkaller login: [ 51.130093] IPVS: ftp: loaded support on port[0] = 21 [ 51.195131] chnl_net:caif_netlink_parms(): no params data found [ 51.229504] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.236479] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.243664] device bridge_slave_0 entered promiscuous mode [ 51.250987] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.257462] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.264511] device bridge_slave_1 entered promiscuous mode [ 51.281324] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.292284] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.308835] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 51.316459] team0: Port device team_slave_0 added [ 51.321798] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 51.329604] team0: Port device team_slave_1 added [ 51.334967] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 51.342282] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 51.414489] device hsr_slave_0 entered promiscuous mode [ 51.462871] device hsr_slave_1 entered promiscuous mode [ 51.532771] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 51.539682] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 51.553985] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.560401] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.567429] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.573816] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.606912] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 51.613306] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.621147] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.630023] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.649655] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.657324] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.666380] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.676554] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 51.683020] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.693879] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.701519] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.707916] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.720915] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.729029] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.735428] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.753737] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.761642] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.770081] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.779745] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.791219] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.801818] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.808608] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.816031] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.829810] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.840398] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.984951] kasan: CONFIG_KASAN_INLINE enabled [ 51.989696] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 51.997423] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 52.003658] CPU: 0 PID: 8054 Comm: syz-executor0 Not tainted 4.20.0+ #3 [ 52.010402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.019775] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 52.025309] 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 [ 52.044210] RSP: 0018:ffff8880982ef120 EFLAGS: 00010203 [ 52.049564] RAX: dffffc0000000000 RBX: ffff88808d28d280 RCX: 0000000000000000 [ 52.056827] RDX: 0000000000000001 RSI: ffffffff87b995b2 RDI: 000000000000000e [ 52.064086] RBP: ffff8880982ef3e8 R08: ffff88808c2944c0 R09: ffff8880977f0f90 [ 52.071345] R10: fffffbfff149fdc0 R11: ffffffff8a4fee03 R12: ffff88808e5d2760 [ 52.078608] R13: ffff8880977f0f40 R14: ffff88808d28d6e0 R15: 0000000000000000 [ 52.085874] FS: 00007f99f82ff700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 52.094094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.099969] CR2: 0000000000000000 CR3: 00000000a0a71000 CR4: 00000000001406f0 [ 52.107234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.114500] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.121761] Call Trace: [ 52.124352] ? __kmalloc_node_track_caller+0x51/0x80 [ 52.129452] ? __alloc_skb+0x12d/0x730 [ 52.133338] ? smc_diag_handler_dump+0x350/0x350 [ 52.138089] ? sock_sendmsg+0xdd/0x130 [ 52.141967] ? ___sys_sendmsg+0x7ec/0x910 [ 52.146104] ? __sys_sendmsg+0x112/0x270 [ 52.150154] ? __x64_sys_sendmsg+0x78/0xb0 [ 52.154384] ? do_syscall_64+0x1a3/0x800 [ 52.158442] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.163799] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.169331] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.174861] ? check_preemption_disabled+0x48/0x290 [ 52.179871] ? __lock_is_held+0xb6/0x140 [ 52.183932] ? lock_acquire+0x1db/0x570 [ 52.187903] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 52.193005] ? lock_release+0xc40/0xc40 [ 52.196976] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.202526] ? kasan_check_write+0x14/0x20 [ 52.206773] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 52.211799] ? __smc_diag_dump.isra.0+0x2b80/0x2b80 [ 52.216824] ? find_held_lock+0x35/0x120 [ 52.220883] smc_diag_dump+0x27/0x80 [ 52.225101] netlink_dump+0x5f2/0x1070 [ 52.228984] ? netlink_broadcast+0x50/0x50 [ 52.233221] __netlink_dump_start+0x5b4/0x7e0 [ 52.237727] smc_diag_handler_dump+0x2a7/0x350 [ 52.242311] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 52.246973] ? lock_downgrade+0x910/0x910 [ 52.251116] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 52.256306] ? rcu_read_unlock_special+0x380/0x380 [ 52.261237] sock_diag_rcv_msg+0x322/0x410 [ 52.265471] netlink_rcv_skb+0x17d/0x410 [ 52.269524] ? sock_diag_bind+0x80/0x80 [ 52.273494] ? netlink_ack+0xba0/0xba0 [ 52.277383] sock_diag_rcv+0x2b/0x40 [ 52.281089] netlink_unicast+0x574/0x770 [ 52.285147] ? netlink_attachskb+0x980/0x980 [ 52.289553] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.295085] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.300099] netlink_sendmsg+0xa05/0xf90 [ 52.304157] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.309705] ? netlink_unicast+0x770/0x770 [ 52.313948] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 52.318784] ? apparmor_socket_sendmsg+0x2a/0x30 [ 52.323530] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.329060] ? security_socket_sendmsg+0x93/0xc0 [ 52.333807] ? netlink_unicast+0x770/0x770 [ 52.338035] sock_sendmsg+0xdd/0x130 [ 52.341754] ___sys_sendmsg+0x7ec/0x910 [ 52.345744] ? copy_msghdr_from_user+0x570/0x570 [ 52.350491] ? iterate_fd+0x4b0/0x4b0 [ 52.354288] ? __might_fault+0x12b/0x1e0 [ 52.358558] ? find_held_lock+0x35/0x120 [ 52.362613] ? __might_fault+0x12b/0x1e0 [ 52.366666] ? __fget_light+0x2db/0x420 [ 52.370629] ? fget_raw+0x20/0x20 [ 52.374076] ? lock_release+0xc40/0xc40 [ 52.378043] ? trace_hardirqs_off_caller+0x300/0x300 [ 52.383139] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.388670] ? __fdget+0x1b/0x20 [ 52.392028] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.397555] ? sockfd_lookup_light+0xc2/0x160 [ 52.402041] __sys_sendmsg+0x112/0x270 [ 52.405923] ? __ia32_sys_shutdown+0x80/0x80 [ 52.410330] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.415688] ? trace_hardirqs_off_caller+0x300/0x300 [ 52.420796] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.425544] __x64_sys_sendmsg+0x78/0xb0 [ 52.429608] do_syscall_64+0x1a3/0x800 [ 52.433511] ? syscall_return_slowpath+0x5f0/0x5f0 [ 52.438434] ? prepare_exit_to_usermode+0x232/0x3b0 [ 52.443449] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.448291] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.453468] RIP: 0033:0x457ec9 [ 52.456656] 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 [ 52.475550] RSP: 002b:00007f99f82fec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.483251] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 52.490508] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 [ 52.497768] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 52.505028] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f99f82ff6d4 [ 52.512290] R13: 00000000004c52f9 R14: 00000000004d8d58 R15: 00000000ffffffff [ 52.519555] Modules linked in: [ 52.522811] ---[ end trace 75e567c88ae5d940 ]--- [ 52.527575] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 52.533127] 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 [ 52.552042] RSP: 0018:ffff8880982ef120 EFLAGS: 00010203 [ 52.557418] RAX: dffffc0000000000 RBX: ffff88808d28d280 RCX: 0000000000000000 [ 52.564700] RDX: 0000000000000001 RSI: ffffffff87b995b2 RDI: 000000000000000e [ 52.571974] RBP: ffff8880982ef3e8 R08: ffff88808c2944c0 R09: ffff8880977f0f90 [ 52.579255] R10: fffffbfff149fdc0 R11: ffffffff8a4fee03 R12: ffff88808e5d2760 [ 52.586536] R13: ffff8880977f0f40 R14: ffff88808d28d6e0 R15: 0000000000000000 [ 52.593819] FS: 00007f99f82ff700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 52.602034] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.607947] CR2: 0000000000000000 CR3: 00000000a0a71000 CR4: 00000000001406f0 [ 52.615232] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.622513] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.629775] Kernel panic - not syncing: Fatal exception [ 52.635982] Kernel Offset: disabled [ 52.639602] Rebooting in 86400 seconds..