[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 14.905344] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.636238] random: sshd: uninitialized urandom read (32 bytes read) [ 20.057431] random: sshd: uninitialized urandom read (32 bytes read) [ 20.607580] random: sshd: uninitialized urandom read (32 bytes read) [ 91.831935] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. [ 97.465251] random: sshd: uninitialized urandom read (32 bytes read) 2018/08/22 13:49:36 parsed 1 programs [ 98.637498] random: cc1: uninitialized urandom read (8 bytes read) 2018/08/22 13:49:38 executed programs: 0 [ 99.991763] IPVS: Creating netns size=2536 id=1 [ 100.016839] IPVS: Creating netns size=2536 id=2 [ 100.055142] IPVS: Creating netns size=2536 id=3 [ 100.095548] IPVS: Creating netns size=2536 id=4 [ 100.143617] IPVS: Creating netns size=2536 id=5 [ 100.206603] IPVS: Creating netns size=2536 id=6 [ 100.282568] IPVS: Creating netns size=2536 id=7 [ 100.354770] IPVS: Creating netns size=2536 id=8 [ 100.362381] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 100.393742] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 100.491653] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 100.532129] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 100.577882] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 100.616693] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 100.739692] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 100.765018] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 100.781146] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 100.796125] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 100.811699] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 100.822173] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 100.889616] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 100.955261] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 100.973930] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 100.984110] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 101.005924] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.029304] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 101.040210] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 101.053312] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 101.088333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.096681] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 101.112246] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 101.120378] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 101.130830] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 101.152152] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 101.191539] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 101.202325] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 101.227523] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.235053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.243901] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 101.260936] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 101.287842] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.295362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.313923] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 101.359724] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 101.376021] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 101.394696] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 101.409527] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 101.433284] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 101.460188] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 101.489378] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 101.500385] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 101.538930] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 101.559424] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 101.570003] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 101.586609] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.594578] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.606385] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 101.625881] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 101.636624] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 101.646908] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.657875] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.672853] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 101.683481] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 101.712768] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 101.726178] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.735174] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.746380] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 101.755332] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 101.762724] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 101.773473] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 101.782548] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.791955] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.803208] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.810744] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.820023] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 101.829497] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 101.838569] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.846954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.854601] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.862275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.870452] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 101.879342] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 101.889381] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 101.898137] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.906729] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.934641] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 101.991058] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 102.007069] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 102.014543] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 102.055862] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 102.062765] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 102.071823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 102.134284] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 102.173138] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 102.225841] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 102.244780] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 102.253171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 102.267709] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 102.276568] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 102.284066] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 104.630122] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 104.839957] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 104.851102] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 104.859513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 104.871795] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.042869] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.063359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.071427] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.112340] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.238390] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.288627] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.304113] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.320290] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.336479] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.347405] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.434229] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.444371] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.452286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.465499] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.479156] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.490173] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.498795] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.550395] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.562028] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.569757] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.665224] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 105.675109] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.691541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.703089] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.822784] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 105.841486] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 105.848852] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/08/22 13:49:44 executed programs: 8 2018/08/22 13:49:49 executed programs: 613 INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes 2018/08/22 13:49:54 executed programs: 1236 [ 116.664072] kasan: CONFIG_KASAN_INLINE enabled [ 116.674470] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 116.739202] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 116.745491] Dumping ftrace buffer: [ 116.749043] (ftrace buffer empty) [ 116.752743] Modules linked in: [ 116.756064] CPU: 1 PID: 11705 Comm: syz-executor3 Not tainted 4.9.123-g8dd3fc2 #79 [ 116.763765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.773113] task: ffff8801cc4f6000 task.stack: ffff8801cb580000 [ 116.779147] RIP: 0010:[<ffffffff8301ceec>] [<ffffffff8301ceec>] sockfs_setattr+0xbc/0x140 [ 116.787653] RSP: 0018:ffff8801cb587c48 EFLAGS: 00010206 [ 116.793076] RAX: dffffc0000000000 RBX: ffff8801cb587d90 RCX: 0000000000000000 [ 116.800341] RDX: 0000000000000065 RSI: ffffffff8301ce8e RDI: 0000000000000328 [ 116.807637] RBP: ffff8801cb587c60 R08: ffffed00396b0f4d R09: 0000000000000001 [ 116.814894] R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000000 [ 116.822150] R13: 0000000000000000 R14: ffff8801c535de40 R15: 0000000000000000 [ 116.829402] FS: 00007fac7df39700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 116.837623] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 116.843480] CR2: 00007fc2ce1f2518 CR3: 00000001b9a23000 CR4: 00000000001606f0 [ 116.850731] Stack: [ 116.852857] 0000000000001846 ffffffff8301ce30 ffff8801cb587d90 ffff8801cb587ce0 [ 116.860847] ffffffff815d8630 ffff8801c515fbb0 ffff8801cb587cb8 ffff8801c535de98 [ 116.868840] ffff8801cb587d50 0000000000000004 0000000003996300 ffff8801d9922e20 [ 116.876860] Call Trace: [ 116.879427] [<ffffffff8301ce30>] ? sock_sendpage+0xc0/0xc0 [ 116.885120] [<ffffffff815d8630>] notify_change2+0xac0/0xdf0 [ 116.890901] [<ffffffff8156ddb2>] chown_common+0x482/0x550 [ 116.896503] [<ffffffff8156d930>] ? chmod_common+0x450/0x450 [ 116.902282] [<ffffffff815e50a3>] ? __mnt_want_write+0x1e3/0x270 [ 116.908410] [<ffffffff815716c5>] SyS_fchownat+0x115/0x1b0 [ 116.914035] [<ffffffff815715b0>] ? SyS_chmod+0x130/0x130 [ 116.919559] [<ffffffff810061b8>] ? do_syscall_64+0x48/0x490 [ 116.925345] [<ffffffff815715b0>] ? SyS_chmod+0x130/0x130 [ 116.930865] [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 [ 116.936555] [<ffffffff83a01c93>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 116.943455] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 87 00 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d f0 49 8d bd 28 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 47 48 8d 7b 08 48 b8 00 00 00 [ 116.970302] RIP [<ffffffff8301ceec>] sockfs_setattr+0xbc/0x140 [ 116.976461] RSP <ffff8801cb587c48> [ 116.986002] ---[ end trace 4bb0411f3071bb15 ]--- [ 116.994095] Kernel panic - not syncing: Fatal exception [ 116.999970] Dumping ftrace buffer: [ 117.003499] (ftrace buffer empty) [ 117.007191] Kernel Offset: disabled [ 117.010798] Rebooting in 86400 seconds..