[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 54.137167][ T26] audit: type=1800 audit(1568920735.987:25): pid=8515 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 54.183309][ T26] audit: type=1800 audit(1568920735.987:26): pid=8515 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.238451][ T26] audit: type=1800 audit(1568920735.987:27): pid=8515 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 '10.128.10.35' (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 executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 69.691290][ T8675] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 69.699380][ T8675] #PF: supervisor instruction fetch in kernel mode [ 69.705880][ T8675] #PF: error_code(0x0010) - not-present page [ 69.711862][ T8675] PGD 8ec3c067 P4D 8ec3c067 PUD a2d08067 PMD 0 [ 69.718126][ T8675] Oops: 0010 [#1] PREEMPT SMP KASAN [ 69.723327][ T8675] CPU: 1 PID: 8675 Comm: syz-executor969 Not tainted 5.3.0+ #0 [ 69.730861][ T8675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program [ 69.740925][ T8675] RIP: 0010:0x0 [ 69.744393][ T8675] Code: Bad RIP value. [ 69.748457][ T8675] RSP: 0018:ffff888096b07cd8 EFLAGS: 00010246 [ 69.754520][ T8675] RAX: dffffc0000000000 RBX: ffffffff89b3adc0 RCX: ffffffff86bd6a59 [ 69.762489][ T8675] RDX: 0000000000000000 RSI: ffff888096b07d40 RDI: ffffffff89990040 [ 69.770444][ T8675] RBP: ffff888096b07da8 R08: ffff88809c473c58 R09: fffffbfff14ef142 [ 69.778392][ T8675] R10: fffffbfff14ef141 R11: ffffffff8a778a0f R12: ffff88809c473780 [ 69.786353][ T8675] R13: ffffffff89990040 R14: 0000000000000000 R15: ffff888096b07d40 [ 69.794306][ T8675] FS: 000055555688d880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 69.803209][ T8675] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.809777][ T8675] CR2: ffffffffffffffd6 CR3: 00000000948d2000 CR4: 00000000001406e0 [ 69.817728][ T8675] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.825675][ T8675] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.833621][ T8675] Call Trace: [ 69.836912][ T8675] rds_bind+0x423/0x800 [ 69.841084][ T8675] ? rds_remove_bound+0xd40/0xd40 [ 69.846090][ T8675] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.852310][ T8675] ? security_socket_bind+0x8d/0xc0 [ 69.857500][ T8675] __sys_bind+0x239/0x290 [ 69.861811][ T8675] ? __ia32_sys_socketpair+0xf0/0xf0 [ 69.867081][ T8675] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 69.873048][ T8675] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 69.879268][ T8675] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 69.885487][ T8675] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 69.890935][ T8675] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 69.896476][ T8675] ? do_syscall_64+0x26/0x760 [ 69.901133][ T8675] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.907287][ T8675] ? do_syscall_64+0x26/0x760 [ 69.911945][ T8675] __x64_sys_bind+0x73/0xb0 [ 69.916441][ T8675] do_syscall_64+0xfa/0x760 [ 69.920926][ T8675] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.926793][ T8675] RIP: 0033:0x4412b9 [ 69.930668][ T8675] 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 [ 69.950247][ T8675] RSP: 002b:00007ffdecc56718 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 69.958634][ T8675] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 69.966707][ T8675] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 69.974656][ T8675] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 69.982601][ T8675] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 executing program [ 69.990557][ T8675] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 69.998518][ T8675] Modules linked in: [ 70.002394][ T8675] CR2: 0000000000000000 [ 70.006536][ T8701] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 70.014342][ T8701] #PF: supervisor instruction fetch in kernel mode [ 70.020823][ T8701] #PF: error_code(0x0010) - not-present page [ 70.026779][ T8701] PGD 8a38b067 P4D 8a38b067 PUD 94968067 PMD 0 [ 70.033005][ T8701] Oops: 0010 [#2] PREEMPT SMP KASAN [ 70.038183][ T8701] CPU: 0 PID: 8701 Comm: syz-executor969 Tainted: G D 5.3.0+ #0 [ 70.047086][ T8701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.057134][ T8701] RIP: 0010:0x0 [ 70.060579][ T8701] Code: Bad RIP value. [ 70.064622][ T8701] RSP: 0018:ffff888096e2fcd8 EFLAGS: 00010246 [ 70.070662][ T8701] RAX: dffffc0000000000 RBX: ffffffff89b3adc0 RCX: ffffffff86bd6a59 [ 70.078620][ T8701] RDX: 0000000000000000 RSI: ffff888096e2fd40 RDI: ffffffff89990040 [ 70.086569][ T8701] RBP: ffff888096e2fda8 R08: ffff88809d7bed98 R09: 0000000000000000 [ 70.094520][ T8701] R10: fffffbfff138cfd0 R11: ffff88808cda6080 R12: ffff88809d7be8c0 [ 70.102469][ T8701] R13: ffffffff89990040 R14: 0000000000000000 R15: ffff888096e2fd40 [ 70.110422][ T8701] FS: 000055555688d880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 70.119330][ T8701] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.125899][ T8701] CR2: ffffffffffffffd6 CR3: 00000000961b6000 CR4: 00000000001406f0 [ 70.133851][ T8701] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.141799][ T8701] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.149757][ T8701] Call Trace: [ 70.153036][ T8701] rds_bind+0x423/0x800 [ 70.157173][ T8701] ? rds_remove_bound+0xd40/0xd40 [ 70.162191][ T8701] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.168410][ T8701] ? security_socket_bind+0x8d/0xc0 [ 70.173597][ T8701] __sys_bind+0x239/0x290 [ 70.177917][ T8701] ? __ia32_sys_socketpair+0xf0/0xf0 [ 70.183178][ T8701] ? up_read+0x1d2/0x810 [ 70.187399][ T8701] ? down_read_non_owner+0x490/0x490 [ 70.192775][ T8701] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 70.199007][ T8701] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.205234][ T8701] ? __kasan_check_write+0x14/0x20 [ 70.210325][ T8701] ? switch_fpu_return+0x1fa/0x4f0 [ 70.215415][ T8701] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 70.221461][ T8701] __x64_sys_bind+0x73/0xb0 [ 70.225960][ T8701] do_syscall_64+0xfa/0x760 [ 70.230439][ T8701] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.237867][ T8701] RIP: 0033:0x4412b9 [ 70.241737][ T8701] 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 [ 70.261318][ T8701] RSP: 002b:00007ffdecc56718 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 70.269711][ T8701] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 70.277658][ T8701] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 70.285609][ T8701] RBP: 000000000001105c R08: 00000000004002c8 R09: 00000000004002c8 executing program executing program executing program [ 70.293558][ T8701] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 70.301505][ T8701] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 70.309455][ T8701] Modules linked in: [ 70.313329][ T8701] CR2: 0000000000000000 [ 70.317570][ T8702] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 70.325370][ T8702] #PF: supervisor instruction fetch in kernel mode [ 70.325461][ T8701] ---[ end trace 51608e5c21fd685f ]--- [ 70.331854][ T8702] #PF: error_code(0x0010) - not-present page executing program executing program executing program [ 70.331864][ T8702] PGD 8ee27067 P4D 8ee27067 PUD 8bc57067 PMD 0 [ 70.331885][ T8702] Oops: 0010 [#3] PREEMPT SMP KASAN [ 70.331902][ T8702] CPU: 1 PID: 8702 Comm: syz-executor969 Tainted: G D 5.3.0+ #0 [ 70.340601][ T8701] RIP: 0010:0x0 [ 70.343311][ T8702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.343321][ T8702] RIP: 0010:0x0 [ 70.343339][ T8702] Code: Bad RIP value. [ 70.352989][ T8701] Code: Bad RIP value. executing program executing program executing program [ 70.354926][ T8702] RSP: 0018:ffff8880870afcd8 EFLAGS: 00010246 [ 70.354938][ T8702] RAX: dffffc0000000000 RBX: ffffffff89b3adc0 RCX: ffffffff86bd6a59 [ 70.354944][ T8702] RDX: 0000000000000000 RSI: ffff8880870afd40 RDI: ffffffff89990040 [ 70.354950][ T8702] RBP: ffff8880870afda8 R08: ffff88809c473558 R09: 0000000000000000 [ 70.354956][ T8702] R10: fffffbfff138cfd0 R11: ffff8880a87ac0c0 R12: ffff88809c473080 [ 70.354963][ T8702] R13: ffffffff89990040 R14: 0000000000000000 R15: ffff8880870afd40 [ 70.354973][ T8702] FS: 000055555688d880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 executing program [ 70.354988][ T8702] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.367125][ T8701] RSP: 0018:ffff888096b07cd8 EFLAGS: 00010246 [ 70.367340][ T8702] CR2: ffffffffffffffd6 CR3: 00000000a5797000 CR4: 00000000001406e0 [ 70.377907][ T8701] RAX: dffffc0000000000 RBX: ffffffff89b3adc0 RCX: ffffffff86bd6a59 [ 70.380829][ T8702] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.380836][ T8702] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.380840][ T8702] Call Trace: executing program executing program [ 70.380860][ T8702] rds_bind+0x423/0x800 [ 70.380879][ T8702] ? rds_remove_bound+0xd40/0xd40 [ 70.388016][ T8701] RDX: 0000000000000000 RSI: ffff888096b07d40 RDI: ffffffff89990040 [ 70.388995][ T8702] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.389015][ T8702] ? security_socket_bind+0x8d/0xc0 [ 70.398284][ T8701] RBP: ffff888096b07da8 R08: ffff88809c473c58 R09: fffffbfff14ef142 [ 70.403016][ T8702] __sys_bind+0x239/0x290 [ 70.403029][ T8702] ? __ia32_sys_socketpair+0xf0/0xf0 [ 70.403046][ T8702] ? up_read+0x1d2/0x810 [ 70.415132][ T8701] R10: fffffbfff14ef141 R11: ffffffff8a778a0f R12: ffff88809c473780 [ 70.418964][ T8702] ? down_read_non_owner+0x490/0x490 [ 70.418978][ T8702] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 70.418996][ T8702] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.430154][ T8701] R13: ffffffff89990040 R14: 0000000000000000 R15: ffff888096b07d40 [ 70.434906][ T8702] ? __kasan_check_write+0x14/0x20 [ 70.434918][ T8702] ? switch_fpu_return+0x1fa/0x4f0 [ 70.434932][ T8702] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 70.434950][ T8702] __x64_sys_bind+0x73/0xb0 [ 70.444684][ T8701] FS: 000055555688d880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 70.450431][ T8702] do_syscall_64+0xfa/0x760 [ 70.450457][ T8702] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.456576][ T8701] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.464455][ T8702] RIP: 0033:0x4412b9 [ 70.464470][ T8702] 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 [ 70.464476][ T8702] RSP: 002b:00007ffdecc56718 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 70.464487][ T8702] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 70.464498][ T8702] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 70.472526][ T8701] CR2: 00007ffdecc56724 CR3: 00000000961b6000 CR4: 00000000001406f0 [ 70.480402][ T8702] RBP: 000000000001105f R08: 00000000004002c8 R09: 00000000004002c8 [ 70.480409][ T8702] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 70.480416][ T8702] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 70.480427][ T8702] Modules linked in: [ 70.480441][ T8702] CR2: 0000000000000000 [ 70.488480][ T8701] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.501208][ T8713] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 70.510443][ T8701] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.517584][ T8713] #PF: supervisor instruction fetch in kernel mode [ 70.517591][ T8713] #PF: error_code(0x0010) - not-present page [ 70.517596][ T8713] PGD a904e067 P4D a904e067 PUD a85c5067 PMD 0 [ 70.517617][ T8713] Oops: 0010 [#4] PREEMPT SMP KASAN [ 70.517631][ T8713] CPU: 1 PID: 8713 Comm: syz-executor969 Tainted: G D 5.3.0+ #0 [ 70.517638][ T8713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.517650][ T8713] RIP: 0010:0x0 [ 70.517670][ T8713] Code: Bad RIP value. [ 70.517675][ T8713] RSP: 0018:ffff888095837cd8 EFLAGS: 00010246 [ 70.517684][ T8713] RAX: dffffc0000000000 RBX: ffffffff89b3adc0 RCX: ffffffff86bd6a59 [ 70.517690][ T8713] RDX: 0000000000000000 RSI: ffff888095837d40 RDI: ffffffff89990040 [ 70.517696][ T8713] RBP: ffff888095837da8 R08: ffff8880a8d215d8 R09: 0000000000000000 [ 70.517703][ T8713] R10: fffffbfff138cfd0 R11: ffff888091dac700 R12: ffff8880a8d21100 [ 70.517710][ T8713] R13: ffffffff89990040 R14: 0000000000000000 R15: ffff888095837d40 [ 70.517720][ T8713] FS: 000055555688d880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 70.517727][ T8713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.517735][ T8713] CR2: ffffffffffffffd6 CR3: 000000009634c000 CR4: 00000000001406e0 [ 70.517745][ T8713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.517752][ T8713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.517756][ T8713] Call Trace: [ 70.517773][ T8713] rds_bind+0x423/0x800 [ 70.517791][ T8713] ? rds_remove_bound+0xd40/0xd40 [ 70.523176][ T8701] Kernel panic - not syncing: Fatal exception [ 70.530953][ T8713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.896299][ T8713] ? security_socket_bind+0x8d/0xc0 [ 70.901485][ T8713] __sys_bind+0x239/0x290 [ 70.905905][ T8713] ? __ia32_sys_socketpair+0xf0/0xf0 [ 70.911170][ T8713] ? up_read+0x1d2/0x810 [ 70.915399][ T8713] ? down_read_non_owner+0x490/0x490 [ 70.920667][ T8713] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 70.926887][ T8713] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.933113][ T8713] ? __kasan_check_write+0x14/0x20 [ 70.938210][ T8713] ? switch_fpu_return+0x1fa/0x4f0 [ 70.943303][ T8713] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 70.949354][ T8713] __x64_sys_bind+0x73/0xb0 [ 70.953842][ T8713] do_syscall_64+0xfa/0x760 [ 70.958328][ T8713] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.964199][ T8713] RIP: 0033:0x4412b9 [ 70.968078][ T8713] 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 [ 70.987661][ T8713] RSP: 002b:00007ffdecc56718 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 70.996061][ T8713] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 71.004015][ T8713] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000003 [ 71.011982][ T8713] RBP: 0000000000011305 R08: 00000000004002c8 R09: 00000000004002c8 [ 71.019942][ T8713] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 71.027905][ T8713] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 71.035859][ T8713] Modules linked in: [ 71.039733][ T8713] CR2: 0000000000000000 [ 71.045061][ T8701] Kernel Offset: disabled [ 71.049381][ T8701] Rebooting in 86400 seconds..