[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 41.742673][ T26] audit: type=1800 audit(1546640626.474:25): pid=7993 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 41.783182][ T26] audit: type=1800 audit(1546640626.484:26): pid=7993 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 41.819853][ T26] audit: type=1800 audit(1546640626.484:27): pid=7993 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 '10.128.10.51' (ECDSA) to the list of known hosts. 2019/01/04 22:23:56 parsed 1 programs 2019/01/04 22:23:57 executed programs: 0 syzkaller login: [ 52.994264][ T8156] IPVS: ftp: loaded support on port[0] = 21 [ 53.062667][ T8156] chnl_net:caif_netlink_parms(): no params data found [ 53.098292][ T8156] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.106042][ T8156] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.113910][ T8156] device bridge_slave_0 entered promiscuous mode [ 53.122200][ T8156] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.129447][ T8156] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.137314][ T8156] device bridge_slave_1 entered promiscuous mode [ 53.155302][ T8156] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.165185][ T8156] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.184377][ T8156] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 53.192971][ T8156] team0: Port device team_slave_0 added [ 53.199132][ T8156] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 53.207178][ T8156] team0: Port device team_slave_1 added [ 53.213116][ T8156] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.221341][ T8156] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.307720][ T8156] device hsr_slave_0 entered promiscuous mode [ 53.355312][ T8156] device hsr_slave_1 entered promiscuous mode [ 53.425517][ T8156] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.433046][ T8156] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.446861][ T8156] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.453946][ T8156] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.461505][ T8156] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.468576][ T8156] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.497751][ T8156] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 53.504494][ T8156] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.513905][ T8156] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.525575][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.546917][ T2978] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.555733][ T2978] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.563621][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.575702][ T8156] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.582479][ T8156] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.591738][ T3470] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.600089][ T3470] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.607208][ T3470] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.625898][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.634307][ T2978] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.641456][ T2978] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.650773][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.666957][ T8156] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.678008][ T8156] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.690174][ T8156] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 53.697883][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.706212][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.714554][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.723212][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.731502][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.746948][ T8156] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 53.758293][ T8156] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.820204][ T8162] kasan: CONFIG_KASAN_INLINE enabled [ 53.826355][ T8162] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.834441][ T8162] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 53.841382][ T8162] CPU: 1 PID: 8162 Comm: syz-executor0 Not tainted 4.20.0-next-20190103 #5 [ 53.849975][ T8162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.860076][ T8162] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.866323][ T8162] 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 [ 53.886400][ T8162] RSP: 0018:ffff88808c947120 EFLAGS: 00010203 [ 53.892475][ T8162] RAX: dffffc0000000000 RBX: ffff888084548940 RCX: 0000000000000000 [ 53.900458][ T8162] RDX: 0000000000000001 RSI: ffffffff87b7ae82 RDI: 000000000000000e [ 53.908434][ T8162] RBP: ffff88808c9473e8 R08: ffff888090216040 R09: ffff8880917c0ef4 [ 53.916413][ T8162] R10: ffffed10122f81d4 R11: ffff8880917c0ea3 R12: ffff888088df52a0 [ 53.924414][ T8162] R13: ffff8880917c0ea4 R14: ffff888084548da0 R15: 0000000000000000 [ 53.932415][ T8162] FS: 00007ff933ed8700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 53.941369][ T8162] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.947959][ T8162] CR2: 00007fc691b24000 CR3: 0000000084f47000 CR4: 00000000001406e0 [ 53.955931][ T8162] Call Trace: [ 53.959228][ T8162] ? __kmalloc_node_track_caller+0x4e/0x70 [ 53.965034][ T8162] ? __alloc_skb+0x185/0x730 [ 53.969622][ T8162] ? smc_diag_handler_dump+0x350/0x350 [ 53.975081][ T8162] ? sock_sendmsg+0xdd/0x130 [ 53.979687][ T8162] ? ___sys_sendmsg+0x7ec/0x910 [ 53.984538][ T8162] ? __sys_sendmsg+0x112/0x270 [ 53.989312][ T8162] ? __sys_sendmsg+0x230/0x270 [ 53.994078][ T8162] ? do_syscall_64+0x1a3/0x800 [ 53.998849][ T8162] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.005096][ T8162] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.011360][ T8162] ? check_preemption_disabled+0x48/0x290 [ 54.017094][ T8162] ? __lock_is_held+0xb6/0x140 [ 54.021865][ T8162] ? __kmalloc_node_track_caller+0x3d/0x70 [ 54.027678][ T8162] ? lock_acquire+0x1db/0x570 [ 54.032378][ T8162] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 54.038197][ T8162] ? lock_release+0xc40/0xc40 [ 54.042877][ T8162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.049122][ T8162] ? kasan_check_write+0x14/0x20 [ 54.054066][ T8162] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 54.059799][ T8162] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 54.065541][ T8162] ? find_held_lock+0x35/0x120 [ 54.070312][ T8162] smc_diag_dump+0x27/0x80 [ 54.074741][ T8162] netlink_dump+0x5f2/0x1070 [ 54.079357][ T8162] ? netlink_broadcast+0x50/0x50 [ 54.084301][ T8162] __netlink_dump_start+0x5b4/0x7e0 [ 54.089510][ T8162] smc_diag_handler_dump+0x2a7/0x350 [ 54.094803][ T8162] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 54.100176][ T8162] ? lock_downgrade+0x910/0x910 [ 54.105057][ T8162] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 54.110980][ T8162] ? rcu_read_unlock_special+0x380/0x380 [ 54.116624][ T8162] sock_diag_rcv_msg+0x322/0x410 [ 54.121566][ T8162] netlink_rcv_skb+0x17d/0x410 [ 54.126332][ T8162] ? sock_diag_bind+0x80/0x80 [ 54.131004][ T8162] ? netlink_ack+0xba0/0xba0 [ 54.135605][ T8162] sock_diag_rcv+0x2b/0x40 [ 54.140032][ T8162] netlink_unicast+0x574/0x770 [ 54.144810][ T8162] ? netlink_attachskb+0x980/0x980 [ 54.149943][ T8162] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.156198][ T8162] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.161927][ T8162] netlink_sendmsg+0xa05/0xf90 [ 54.166711][ T8162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.172966][ T8162] ? netlink_unicast+0x770/0x770 [ 54.177904][ T8162] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 54.183450][ T8162] ? apparmor_socket_sendmsg+0x2a/0x30 [ 54.188921][ T8162] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.195155][ T8162] ? security_socket_sendmsg+0x93/0xc0 [ 54.200634][ T8162] ? netlink_unicast+0x770/0x770 [ 54.205575][ T8162] sock_sendmsg+0xdd/0x130 [ 54.210002][ T8162] ___sys_sendmsg+0x7ec/0x910 [ 54.214675][ T8162] ? copy_msghdr_from_user+0x570/0x570 [ 54.220128][ T8162] ? ksys_dup3+0x660/0x660 [ 54.224538][ T8162] ? __might_fault+0x12b/0x1e0 [ 54.229309][ T8162] ? find_held_lock+0x35/0x120 [ 54.234073][ T8162] ? __might_fault+0x12b/0x1e0 [ 54.238837][ T8162] ? __fget_light+0x2db/0x420 [ 54.243507][ T8162] ? fget_raw+0x20/0x20 [ 54.247656][ T8162] ? lock_release+0xc40/0xc40 [ 54.252323][ T8162] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.258140][ T8162] ? __fdget+0x1b/0x20 [ 54.262230][ T8162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.268480][ T8162] ? sockfd_lookup_light+0xc2/0x160 [ 54.273683][ T8162] __sys_sendmsg+0x112/0x270 [ 54.278295][ T8162] ? __ia32_sys_shutdown+0x80/0x80 [ 54.283441][ T8162] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.289524][ T8162] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.295346][ T8162] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.300823][ T8162] __x64_sys_sendmsg+0x78/0xb0 [ 54.305603][ T8162] do_syscall_64+0x1a3/0x800 [ 54.310206][ T8162] ? syscall_return_slowpath+0x5f0/0x5f0 [ 54.315871][ T8162] ? prepare_exit_to_usermode+0x232/0x3b0 [ 54.321606][ T8162] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.327186][ T8162] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.333097][ T8162] RIP: 0033:0x457ec9 [ 54.337006][ T8162] 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 [ 54.356622][ T8162] RSP: 002b:00007ff933ed7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.365045][ T8162] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 54.373026][ T8162] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000008 [ 54.381010][ T8162] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 54.389010][ T8162] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff933ed86d4 [ 54.396989][ T8162] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 54.404972][ T8162] Modules linked in: [ 54.408974][ T8162] ---[ end trace 71c07aba2f79553c ]--- [ 54.414468][ T8162] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 54.420804][ T8162] 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 [ 54.440486][ T8162] RSP: 0018:ffff88808c947120 EFLAGS: 00010203 [ 54.446595][ T8162] RAX: dffffc0000000000 RBX: ffff888084548940 RCX: 0000000000000000 [ 54.454584][ T8162] RDX: 0000000000000001 RSI: ffffffff87b7ae82 RDI: 000000000000000e [ 54.462625][ T8162] RBP: ffff88808c9473e8 R08: ffff888090216040 R09: ffff8880917c0ef4 [ 54.470680][ T8162] R10: ffffed10122f81d4 R11: ffff8880917c0ea3 R12: ffff888088df52a0 [ 54.478725][ T8162] R13: ffff8880917c0ea4 R14: ffff888084548da0 R15: 0000000000000000 [ 54.486757][ T8162] FS: 00007ff933ed8700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 54.495750][ T8162] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.502344][ T8162] CR2: 00007fc691b24000 CR3: 0000000084f47000 CR4: 00000000001406e0 [ 54.510374][ T8162] Kernel panic - not syncing: Fatal exception [ 54.517427][ T8162] Kernel Offset: disabled [ 54.521760][ T8162] Rebooting in 86400 seconds..