[[0;32m OK [0m] Started Serial Getty on ttyS0. [[0;32m OK [0m] Started Getty on tty1. [ 44.530023][ T6487] sshd (6487) used greatest stack depth: 23304 bytes left [[0;32m OK [0m] Started getty on tty2-tty6 if dbus and logind are not available. [[0;32m OK [0m] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.177' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 1505.113140][ T6810] IPVS: ftp: loaded support on port[0] = 21 [ 1505.118509][ T6805] IPVS: ftp: loaded support on port[0] = 21 [ 1505.123703][ T6813] IPVS: ftp: loaded support on port[0] = 21 [ 1505.136645][ T6812] IPVS: ftp: loaded support on port[0] = 21 [ 1505.150579][ T6811] IPVS: ftp: loaded support on port[0] = 21 [ 1505.158563][ T6814] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1505.371110][ T6925] IPVS: ftp: loaded support on port[0] = 21 [ 1505.395760][ T6928] IPVS: ftp: loaded support on port[0] = 21 [ 1505.402318][ T125] tipc: TX() has been purged, node left! executing program executing program [ 1505.517676][ T6989] IPVS: ftp: loaded support on port[0] = 21 [ 1505.531042][ T6995] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1505.623689][ T7039] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1505.684859][ T7061] IPVS: ftp: loaded support on port[0] = 21 [ 1505.725621][ T7089] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1505.810523][ T7130] IPVS: ftp: loaded support on port[0] = 21 [ 1505.843328][ T7144] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1505.932788][ T7184] IPVS: ftp: loaded support on port[0] = 21 [ 1505.960270][ T7196] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1509.384278][ T7271] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1509.655404][ T7294] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1509.894914][ T7317] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1510.144639][ T7340] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1510.385640][ T7363] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1510.605976][ T7386] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1510.780691][ T7399] IPVS: ftp: loaded support on port[0] = 21 [ 1510.840222][ T7412] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1510.978186][ T7431] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1511.074995][ T7456] IPVS: ftp: loaded support on port[0] = 21 [ 1511.118500][ T7464] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1511.536839][ T7534] IPVS: ftp: loaded support on port[0] = 21 [ 1511.630106][ T125] tipc: TX() has been purged, node left! [ 1511.662413][ T125] tipc: TX() has been purged, node left! [ 1511.692665][ T125] tipc: TX() has been purged, node left! [ 1511.725035][ T125] tipc: TX() has been purged, node left! [ 1511.763854][ T125] tipc: TX() has been purged, node left! [ 1511.804597][ T125] tipc: TX() has been purged, node left! executing program [ 1511.927889][ T7590] IPVS: ftp: loaded support on port[0] = 21 [ 1511.988894][ T125] tipc: TX() has been purged, node left! [ 1511.995868][ T125] tipc: TX() has been purged, node left! [ 1512.009428][ T125] tipc: TX() has been purged, node left! [ 1512.015720][ T125] tipc: TX() has been purged, node left! [ 1512.022965][ T125] tipc: TX() has been purged, node left! [ 1512.029575][ T125] tipc: TX() has been purged, node left! [ 1512.035921][ T125] tipc: TX() has been purged, node left! executing program [ 1512.069799][ T125] tipc: TX() has been purged, node left! [ 1512.091046][ T125] tipc: TX() has been purged, node left! [ 1512.098092][ T7625] IPVS: ftp: loaded support on port[0] = 21 [ 1512.105434][ T125] tipc: TX() has been purged, node left! [ 1512.120342][ T125] tipc: TX() has been purged, node left! executing program [ 1512.385852][ T7652] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1512.604469][ T7681] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1512.843963][ T7704] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1514.522756][ T7708] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1517.004383][ T7726] IPVS: ftp: loaded support on port[0] = 21 [ 1517.010518][ T7727] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program [ 1517.204310][ T7773] IPVS: ftp: loaded support on port[0] = 21 [ 1517.205896][ T7767] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1517.246896][ T7775] IPVS: ftp: loaded support on port[0] = 21 [ 1517.276806][ T7785] IPVS: ftp: loaded support on port[0] = 21 [ 1517.279674][ T7781] IPVS: ftp: loaded support on port[0] = 21 [ 1517.290672][ T7790] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1517.401499][ T7829] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1517.573750][ T7910] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1517.722932][ T7953] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1517.853849][ T7996] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1522.152096][ T8038] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1522.302896][ T8061] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1522.488078][ T8084] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1522.644170][ T8107] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1522.853258][ T8132] IPVS: ftp: loaded support on port[0] = 21 [ 1522.854007][ T8130] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 1523.036230][ T8169] IPVS: ftp: loaded support on port[0] = 21 [ 1523.052148][ T8173] IPVS: ftp: loaded support on port[0] = 21 [ 1523.101358][ T8182] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1523.221417][ T8217] IPVS: ftp: loaded support on port[0] = 21 [ 1523.275387][ T8234] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1523.587460][ T8297] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1523.698459][ T8338] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1523.919559][ T8377] IPVS: ftp: loaded support on port[0] = 21 [ 1526.881183][ T125] tipc: TX() has been purged, node left! [ 1527.038667][ T125] tipc: TX() has been purged, node left! [ 1527.199780][ T125] tipc: TX() has been purged, node left! [ 1527.358668][ T125] tipc: TX() has been purged, node left! [ 1527.518766][ T125] tipc: TX() has been purged, node left! [ 1527.678653][ T125] tipc: TX() has been purged, node left! [ 1527.828650][ T125] tipc: TX() has been purged, node left! executing program [ 1527.998651][ T125] tipc: TX() has been purged, node left! [ 1528.036439][ T8417] IPVS: ftp: loaded support on port[0] = 21 [ 1528.119513][ T125] tipc: TX() has been purged, node left! executing program [ 1528.204953][ T8440] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1528.298864][ T125] tipc: TX() has been purged, node left! [ 1528.305359][ T125] tipc: TX() has been purged, node left! [ 1528.340874][ T8463] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1528.420719][ T125] tipc: TX() has been purged, node left! [ 1528.427232][ T125] tipc: TX() has been purged, node left! [ 1528.459878][ T8486] IPVS: ftp: loaded support on port[0] = 21 [ 1528.474878][ T8488] IPVS: ftp: loaded support on port[0] = 21 [ 1528.540585][ T125] tipc: TX() has been purged, node left! [ 1528.546835][ T125] tipc: TX() has been purged, node left! [ 1528.574727][ T125] tipc: TX() has been purged, node left! executing program [ 1528.608158][ T125] tipc: TX() has been purged, node left! [ 1528.643590][ T125] tipc: TX() has been purged, node left! executing program [ 1528.679623][ T8526] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 1528.721584][ T8532] IPVS: ftp: loaded support on port[0] = 21 [ 1528.756085][ T8547] IPVS: ftp: loaded support on port[0] = 21 [ 1528.799279][ T8555] IPVS: ftp: loaded support on port[0] = 21 [ 1528.808508][ T8565] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 1528.950327][ T8627] IPVS: ftp: loaded support on port[0] = 21 [ 1528.990362][ T8640] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1529.025470][ T8660] IPVS: ftp: loaded support on port[0] = 21 [ 1529.054143][ T8668] IPVS: ftp: loaded support on port[0] = 21 [ 1529.060679][ T8669] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1529.161862][ T8728] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 1529.246772][ T8779] IPVS: ftp: loaded support on port[0] = 21 [ 1529.257979][ T8781] IPVS: ftp: loaded support on port[0] = 21 [ 1529.289779][ T8789] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1532.417461][ T8902] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1533.495033][ T8928] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1534.245395][ T8969] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1534.482951][ T8992] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1534.537014][ T8995] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 1534.589823][ T9005] IPVS: ftp: loaded support on port[0] = 21 [ 1534.634271][ T9022] IPVS: ftp: loaded support on port[0] = 21 [ 1534.656895][ T9025] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1537.689718][ T9144] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1537.955335][ T9167] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1538.212222][ T9190] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1538.483719][ T9213] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1538.703335][ T9234] IPVS: ftp: loaded support on port[0] = 21 [ 1538.739366][ T9213] general protection fault, probably for non-canonical address 0xdffffc0000000080: 0000 [#1] PREEMPT SMP KASAN [ 1538.751100][ T9213] KASAN: null-ptr-deref in range [0x0000000000000400-0x0000000000000407] [ 1538.759514][ T9213] CPU: 0 PID: 9213 Comm: syz-executor012 Not tainted 5.8.0-rc2-syzkaller #0 [ 1538.768165][ T9213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1538.778358][ T9213] RIP: 0010:free_netdev+0x41/0x480 [ 1538.783462][ T9213] Code: d2 be 33 27 00 00 48 c7 c7 c0 50 fd 88 e8 c7 b7 1c fb 48 8d bd 00 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f4 03 00 00 48 8b bd 00 04 00 00 e8 c9 1d 6a fb [ 1538.803248][ T9213] RSP: 0018:ffffc9000711fc10 EFLAGS: 00010202 [ 1538.809307][ T9213] RAX: dffffc0000000000 RBX: ffff88809337c000 RCX: 0000000000000001 [ 1538.817290][ T9213] RDX: 0000000000000080 RSI: ffffffff89bbe580 RDI: 0000000000000400 [ 1538.825249][ T9213] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8a7b0887 [ 1538.833241][ T9213] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 1538.841200][ T9213] R13: ffff888094109410 R14: ffff8880a8170000 R15: ffff8880954e9578 [ 1538.849183][ T9213] FS: 00007f607c838700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 1538.858095][ T9213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1538.864695][ T9213] CR2: 00000000004cd8b0 CR3: 0000000093d66000 CR4: 00000000001406f0 [ 1538.872661][ T9213] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1538.880616][ T9213] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1538.888573][ T9213] Call Trace: [ 1538.891921][ T9213] ip6gre_init_net+0x546/0x610 [ 1538.896691][ T9213] ? ip6gre_tunnel_uninit+0x420/0x420 [ 1538.902056][ T9213] ops_init+0xaf/0x470 [ 1538.906109][ T9213] setup_net+0x2d8/0x850 [ 1538.910346][ T9213] ? ops_init+0x470/0x470 [ 1538.914733][ T9213] ? trace_kmalloc+0xfd/0x130 [ 1538.919415][ T9213] ? kmem_cache_alloc_trace+0x168/0x2d0 [ 1538.924943][ T9213] copy_net_ns+0x2cf/0x5e0 [ 1538.929409][ T9213] create_new_namespaces+0x3f6/0xb10 [ 1538.934684][ T9213] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 1538.940319][ T9213] ksys_unshare+0x36c/0x9a0 [ 1538.944821][ T9213] ? walk_process_tree+0x2c0/0x2c0 [ 1538.949994][ T9213] ? check_preemption_disabled+0x38/0x220 [ 1538.955726][ T9213] ? do_syscall_64+0x1c/0xe0 [ 1538.960336][ T9213] __x64_sys_unshare+0x2d/0x40 [ 1538.965091][ T9213] do_syscall_64+0x60/0xe0 [ 1538.969536][ T9213] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1538.975412][ T9213] RIP: 0033:0x446db9 [ 1538.979311][ T9213] Code: Bad RIP value. [ 1538.983356][ T9213] RSP: 002b:00007f607c837da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 1538.991812][ T9213] RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 0000000000446db9 executing program [ 1538.999763][ T9213] RDX: 0000000000402b94 RSI: 4932b128c6b2d573 RDI: 0000000040000000 [ 1539.007721][ T9213] RBP: 00000000006dcc20 R08: 00007f607c838700 R09: 0000000000000000 [ 1539.015677][ T9213] R10: 00007f607c838700 R11: 0000000000000246 R12: 00000000006dcc2c [ 1539.023637][ T9213] R13: 0000000000003069 R14: 6669775f74726976 R15: 20c49ba5e353f7cf [ 1539.031595][ T9213] Modules linked in: [ 1539.059004][ T9260] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1539.131136][ T9284] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1539.216444][ T9307] IPVS: ftp: loaded support on port[0] = 21 executing program [ 1539.279419][ T9213] ---[ end trace 1609eb186837b942 ]--- [ 1539.288991][ T9213] RIP: 0010:free_netdev+0x41/0x480 [ 1539.295297][ T9213] Code: d2 be 33 27 00 00 48 c7 c7 c0 50 fd 88 e8 c7 b7 1c fb 48 8d bd 00 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f4 03 00 00 48 8b bd 00 04 00 00 e8 c9 1d 6a fb [ 1539.332210][ T9330] IPVS: ftp: loaded support on port[0] = 21 [ 1539.362237][ T9213] RSP: 0018:ffffc9000711fc10 EFLAGS: 00010202 [ 1539.383631][ T9213] RAX: dffffc0000000000 RBX: ffff88809337c000 RCX: 0000000000000001 [ 1539.403024][ T9213] RDX: 0000000000000080 RSI: ffffffff89bbe580 RDI: 0000000000000400 [ 1539.421601][ T9213] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8a7b0887 executing program executing program [ 1539.431717][ T9213] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 1539.441563][ T9213] R13: ffff888094109410 R14: ffff8880a8170000 R15: ffff8880954e9578 [ 1539.451366][ T9213] FS: 00007f607c838700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 1539.466285][ T9353] IPVS: ftp: loaded support on port[0] = 21 [ 1539.473963][ T9213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1539.486256][ T9213] CR2: 00007f607c837e78 CR3: 0000000093d66000 CR4: 00000000001406e0 [ 1539.504505][ T9355] IPVS: ftp: loaded support on port[0] = 21 [ 1539.514629][ T9213] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1539.540375][ T9213] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1539.563838][ T9213] Kernel panic - not syncing: Fatal exception [ 1539.571059][ T9213] Kernel Offset: disabled [ 1539.575402][ T9213] Rebooting in 86400 seconds..