[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.781864][ T26] audit: type=1800 audit(1569253149.864:25): pid=8556 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 53.803497][ T26] audit: type=1800 audit(1569253149.864:26): pid=8556 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 53.849937][ T26] audit: type=1800 audit(1569253149.874:27): pid=8556 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 '10.128.1.14' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 66.829043][ T8714] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 66.837254][ T8714] #PF: supervisor instruction fetch in kernel mode [ 66.843765][ T8714] #PF: error_code(0x0010) - not-present page [ 66.850142][ T8714] PGD 954e5067 P4D 954e5067 PUD a3f91067 PMD 0 [ 66.856702][ T8714] Oops: 0010 [#1] PREEMPT SMP KASAN [ 66.862023][ T8714] CPU: 1 PID: 8714 Comm: syz-executor673 Not tainted 5.3.0-next-20190920 #0 [ 66.871534][ T8714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.882343][ T8714] RIP: 0010:0x0 [ 66.885947][ T8714] Code: Bad RIP value. [ 66.890025][ T8714] RSP: 0018:ffff88808ec1fcd8 EFLAGS: 00010246 [ 66.898390][ T8714] RAX: dffffc0000000000 RBX: ffffffff89b31200 RCX: ffffffff86c196a9 [ 66.906477][ T8714] RDX: 0000000000000000 RSI: ffff88808ec1fd40 RDI: ffffffff8998b700 [ 66.916816][ T8714] RBP: ffff88808ec1fda8 R08: ffff8880958dac98 R09: fffffbfff14ee142 [ 66.924807][ T8714] R10: fffffbfff14ee141 R11: ffffffff8a770a0f R12: ffff8880958da7c0 [ 66.933129][ T8714] R13: ffffffff8998b700 R14: 0000000000000000 R15: ffff88808ec1fd40 [ 66.942461][ T8714] FS: 0000555555946880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 66.951745][ T8714] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.958713][ T8714] CR2: ffffffffffffffd6 CR3: 000000008e44f000 CR4: 00000000001406e0 [ 66.966876][ T8714] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.975564][ T8714] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.983548][ T8714] Call Trace: [ 66.986865][ T8714] rds_bind+0x423/0x800 [ 66.991048][ T8714] ? rds_remove_bound+0xd40/0xd40 [ 66.996221][ T8714] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.003689][ T8714] ? security_socket_bind+0x8d/0xc0 [ 67.008943][ T8714] __sys_bind+0x239/0x290 [ 67.013751][ T8714] ? __ia32_sys_socketpair+0xf0/0xf0 [ 67.019893][ T8714] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.025923][ T8714] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 67.032879][ T8714] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 67.039174][ T8714] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 67.044813][ T8714] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 67.050542][ T8714] ? do_syscall_64+0x26/0x760 [ 67.055268][ T8714] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.061475][ T8714] ? do_syscall_64+0x26/0x760 [ 67.066381][ T8714] __x64_sys_bind+0x73/0xb0 [ 67.070914][ T8714] do_syscall_64+0xfa/0x760 [ 67.075746][ T8714] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.081748][ T8714] RIP: 0033:0x4412b9 [ 67.085664][ T8714] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.106725][ T8714] RSP: 002b:00007ffeda677cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 67.116241][ T8714] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 67.124223][ T8714] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 67.132355][ T8714] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 67.140340][ T8714] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 67.148715][ T8714] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 67.156835][ T8714] Modules linked in: [ 67.160754][ T8714] CR2: 0000000000000000 [ 67.176660][ T8812] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 67.185351][ T8812] #PF: supervisor instruction fetch in kernel mode [ 67.191911][ T8812] #PF: error_code(0x0010) - not-present page [ 67.198106][ T8812] PGD a0118067 P4D a0118067 PUD a8277067 PMD 0 [ 67.204352][ T8812] Oops: 0010 [#2] PREEMPT SMP KASAN [ 67.209668][ T8812] CPU: 0 PID: 8812 Comm: syz-executor673 Tainted: G D 5.3.0-next-20190920 #0 [ 67.220093][ T8812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.230966][ T8812] RIP: 0010:0x0 [ 67.234454][ T8812] Code: Bad RIP value. [ 67.238517][ T8812] RSP: 0018:ffff8880990afcd8 EFLAGS: 00010246 [ 67.244751][ T8812] RAX: dffffc0000000000 RBX: ffffffff89b31200 RCX: ffffffff86c196a9 [ 67.252722][ T8812] RDX: 0000000000000000 RSI: ffff8880990afd40 RDI: ffffffff8998b700 [ 67.260706][ T8812] RBP: ffff8880990afda8 R08: ffff8880a95d74d8 R09: 0000000000000000 [ 67.268819][ T8812] R10: fffffbfff138b840 R11: ffff888095bb6680 R12: ffff8880a95d7000 [ 67.276782][ T8812] R13: ffffffff8998b700 R14: 0000000000000000 R15: ffff8880990afd40 [ 67.284735][ T8812] FS: 0000555555946880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.293642][ T8812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.300203][ T8812] CR2: ffffffffffffffd6 CR3: 0000000093208000 CR4: 00000000001406f0 [ 67.308151][ T8812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.316099][ T8812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.324050][ T8812] Call Trace: [ 67.327323][ T8812] rds_bind+0x423/0x800 [ 67.331463][ T8812] ? rds_remove_bound+0xd40/0xd40 [ 67.336477][ T8812] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.342728][ T8812] ? security_socket_bind+0x8d/0xc0 [ 67.347918][ T8812] __sys_bind+0x239/0x290 [ 67.352243][ T8812] ? __ia32_sys_socketpair+0xf0/0xf0 [ 67.357507][ T8812] ? up_read+0x1d2/0x810 [ 67.361737][ T8812] ? down_read_non_owner+0x490/0x490 [ 67.367008][ T8812] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 67.373247][ T8812] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 67.379495][ T8812] ? __kasan_check_write+0x14/0x20 [ 67.384591][ T8812] ? switch_fpu_return+0x1fa/0x4f0 [ 67.389699][ T8812] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 67.395754][ T8812] __x64_sys_bind+0x73/0xb0 [ 67.400243][ T8812] do_syscall_64+0xfa/0x760 [ 67.404730][ T8812] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.410614][ T8812] RIP: 0033:0x4412b9 [ 67.414500][ T8812] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.434079][ T8812] RSP: 002b:00007ffeda677cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 67.442465][ T8812] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 67.450414][ T8812] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 67.458363][ T8812] RBP: 00000000000104f1 R08: 00000000004002c8 R09: 00000000004002c8 [ 67.466312][ T8812] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 67.474261][ T8812] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 67.482215][ T8812] Modules linked in: [ 67.486096][ T8812] CR2: 0000000000000000 [ 67.490240][ T8814] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 67.498049][ T8814] #PF: supervisor instruction fetch in kernel mode [ 67.504542][ T8814] #PF: error_code(0x0010) - not-present page [ 67.510515][ T8814] PGD 92362067 P4D 92362067 PUD 92e81067 PMD 0 [ 67.516766][ T8814] Oops: 0010 [#3] PREEMPT SMP KASAN [ 67.521964][ T8814] CPU: 1 PID: 8814 Comm: syz-executor673 Tainted: G D 5.3.0-next-20190920 #0 [ 67.530817][ T8812] ---[ end trace 79e3a0c780805014 ]--- [ 67.532007][ T8814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.532019][ T8814] RIP: 0010:0x0 [ 67.532038][ T8814] Code: Bad RIP value. [ 67.537876][ T8812] RIP: 0010:0x0 [ 67.548110][ T8814] RSP: 0018:ffff888094b27cd8 EFLAGS: 00010246 [ 67.548119][ T8814] RAX: dffffc0000000000 RBX: ffffffff89b31200 RCX: ffffffff86c196a9 [ 67.548126][ T8814] RDX: 0000000000000000 RSI: ffff888094b27d40 RDI: ffffffff8998b700 [ 67.548134][ T8814] RBP: ffff888094b27da8 R08: ffff88809a8ae518 R09: 0000000000000000 [ 67.548142][ T8814] R10: fffffbfff138b840 R11: ffff8880a4c32600 R12: ffff88809a8ae040 [ 67.548149][ T8814] R13: ffffffff8998b700 R14: 0000000000000000 R15: ffff888094b27d40 [ 67.548164][ T8814] FS: 0000555555946880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 67.554996][ T8812] Code: Bad RIP value. [ 67.555642][ T8814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.555651][ T8814] CR2: ffffffffffffffd6 CR3: 0000000090921000 CR4: 00000000001406e0 [ 67.555661][ T8814] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.555673][ T8814] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.562075][ T8812] RSP: 0018:ffff88808ec1fcd8 EFLAGS: 00010246 [ 67.565447][ T8814] Call Trace: [ 67.565466][ T8814] rds_bind+0x423/0x800 [ 67.565484][ T8814] ? rds_remove_bound+0xd40/0xd40 [ 67.574908][ T8812] RAX: dffffc0000000000 RBX: ffffffff89b31200 RCX: ffffffff86c196a9 [ 67.581420][ T8814] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 67.581434][ T8814] ? security_socket_bind+0x8d/0xc0 [ 67.581456][ T8814] __sys_bind+0x239/0x290 [ 67.593344][ T8812] RDX: 0000000000000000 RSI: ffff88808ec1fd40 RDI: ffffffff8998b700 [ 67.597462][ T8814] ? __ia32_sys_socketpair+0xf0/0xf0 [ 67.597478][ T8814] ? up_read+0x1d2/0x810 [ 67.610748][ T8812] RBP: ffff88808ec1fda8 R08: ffff8880958dac98 R09: fffffbfff14ee142 [ 67.614348][ T8814] ? down_read_non_owner+0x490/0x490 [ 67.614370][ T8814] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 67.620356][ T8812] R10: fffffbfff14ee141 R11: ffffffff8a770a0f R12: ffff8880958da7c0 [ 67.624994][ T8814] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 67.625007][ T8814] ? __kasan_check_write+0x14/0x20 [ 67.625029][ T8814] ? switch_fpu_return+0x1fa/0x4f0 [ 67.636980][ T8812] R13: ffffffff8998b700 R14: 0000000000000000 R15: ffff88808ec1fd40 [ 67.640956][ T8814] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 67.640973][ T8814] __x64_sys_bind+0x73/0xb0 [ 67.640992][ T8814] do_syscall_64+0xfa/0x760 [ 67.653970][ T8812] FS: 0000555555946880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.656649][ T8814] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.656664][ T8814] RIP: 0033:0x4412b9 [ 67.662632][ T8812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.664059][ T8814] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.664067][ T8814] RSP: 002b:00007ffeda677cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 67.669755][ T8812] CR2: 00000000004bf788 CR3: 0000000093208000 CR4: 00000000001406f0 [ 67.677023][ T8814] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 67.677031][ T8814] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 67.677038][ T8814] RBP: 00000000000105e8 R08: 00000000004002c8 R09: 00000000004002c8 [ 67.677045][ T8814] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 67.677058][ T8814] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 67.686850][ T8812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.688444][ T8814] Modules linked in: [ 67.688455][ T8814] CR2: 0000000000000000 [ 67.695461][ T8714] ---[ end trace 79e3a0c780805015 ]--- [ 67.705209][ T8812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.708897][ T8714] RIP: 0010:0x0 [ 67.720793][ T8812] Kernel panic - not syncing: Fatal exception [ 67.725473][ T8841] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 67.927816][ T8841] #PF: supervisor instruction fetch in kernel mode [ 67.934298][ T8841] #PF: error_code(0x0010) - not-present page [ 67.940261][ T8841] PGD 90849067 P4D 90849067 PUD 96fe2067 PMD 0 [ 67.946495][ T8841] Oops: 0010 [#4] PREEMPT SMP KASAN [ 67.951677][ T8841] CPU: 1 PID: 8841 Comm: syz-executor673 Tainted: G D 5.3.0-next-20190920 #0 [ 67.961712][ T8841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.971752][ T8841] RIP: 0010:0x0 [ 67.975204][ T8841] Code: Bad RIP value. [ 67.979248][ T8841] RSP: 0018:ffff8880949c7cd8 EFLAGS: 00010246 [ 67.985290][ T8841] RAX: dffffc0000000000 RBX: ffffffff89b31200 RCX: ffffffff86c196a9 [ 67.993245][ T8841] RDX: 0000000000000000 RSI: ffff8880949c7d40 RDI: ffffffff8998b700 [ 68.001198][ T8841] RBP: ffff8880949c7da8 R08: ffff8880983714d8 R09: 0000000000000000 [ 68.009152][ T8841] R10: fffffbfff138b840 R11: ffff8880a85e85c0 R12: ffff888098371000 [ 68.017108][ T8841] R13: ffffffff8998b700 R14: 0000000000000000 R15: ffff8880949c7d40 [ 68.025160][ T8841] FS: 0000555555946880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 68.034068][ T8841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.040632][ T8841] CR2: ffffffffffffffd6 CR3: 00000000a849a000 CR4: 00000000001406e0 [ 68.048585][ T8841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.056539][ T8841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.064488][ T8841] Call Trace: [ 68.067764][ T8841] rds_bind+0x423/0x800 [ 68.071910][ T8841] ? rds_remove_bound+0xd40/0xd40 [ 68.076922][ T8841] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.083147][ T8841] ? security_socket_bind+0x8d/0xc0 [ 68.088337][ T8841] __sys_bind+0x239/0x290 [ 68.092649][ T8841] ? __ia32_sys_socketpair+0xf0/0xf0 [ 68.097934][ T8841] ? up_read+0x1d2/0x810 [ 68.102160][ T8841] ? down_read_non_owner+0x490/0x490 [ 68.107429][ T8841] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 68.113651][ T8841] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 68.119871][ T8841] ? __kasan_check_write+0x14/0x20 [ 68.124976][ T8841] ? switch_fpu_return+0x1fa/0x4f0 [ 68.130072][ T8841] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 68.136123][ T8841] __x64_sys_bind+0x73/0xb0 [ 68.140610][ T8841] do_syscall_64+0xfa/0x760 [ 68.145111][ T8841] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.150984][ T8841] RIP: 0033:0x4412b9 [ 68.154874][ T8841] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.174456][ T8841] RSP: 002b:00007ffeda677cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 68.182853][ T8841] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 68.190805][ T8841] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 68.198756][ T8841] RBP: 0000000000010858 R08: 00000000004002c8 R09: 00000000004002c8 [ 68.206721][ T8841] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 68.214684][ T8841] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 68.222644][ T8841] Modules linked in: [ 68.226524][ T8841] CR2: 0000000000000000 [ 68.231903][ T8812] Kernel Offset: disabled [ 68.236229][ T8812] Rebooting in 86400 seconds..