[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.729701][ T26] audit: type=1800 audit(1573368998.539:25): pid=8657 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.764075][ T26] audit: type=1800 audit(1573368998.539:26): pid=8657 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.801837][ T26] audit: type=1800 audit(1573368998.539:27): pid=8657 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 '10.128.1.22' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 74.794891][ T8815] ================================================================== [ 74.798168][ T8820] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 74.803127][ T8815] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x358/0x460 [ 74.811010][ T8820] #PF: supervisor read access in kernel mode [ 74.818454][ T8815] Read of size 43 at addr 0000000000000000 by task syz-executor355/8815 [ 74.824486][ T8820] #PF: error_code(0x0000) - not-present page [ 74.832785][ T8815] [ 74.838757][ T8820] PGD 9ad63067 P4D 9ad63067 PUD 997a4067 PMD 0 [ 74.841075][ T8815] CPU: 1 PID: 8815 Comm: syz-executor355 Not tainted 5.4.0-rc6-next-20191108 #0 [ 74.847290][ T8820] Oops: 0000 [#1] PREEMPT SMP KASAN [ 74.856289][ T8815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.861468][ T8820] CPU: 0 PID: 8820 Comm: syz-executor355 Not tainted 5.4.0-rc6-next-20191108 #0 [ 74.871500][ T8815] Call Trace: [ 74.881448][ T8820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.884729][ T8815] dump_stack+0x197/0x210 [ 74.894754][ T8820] RIP: 0010:memcpy_erms+0x6/0x10 [ 74.899062][ T8815] ? llcp_sock_getname+0x358/0x460 [ 74.903981][ T8820] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 74.909064][ T8815] ? llcp_sock_getname+0x358/0x460 [ 74.928639][ T8820] RSP: 0018:ffff88809d04fd50 EFLAGS: 00010246 [ 74.933731][ T8815] __kasan_report.cold+0x5/0x41 [ 74.939771][ T8820] RAX: ffff88809d04fe12 RBX: ffff88809d04fe00 RCX: 000000000000002b [ 74.944600][ T8815] ? llcp_sock_getname+0x358/0x460 [ 74.952544][ T8820] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff88809d04fe12 [ 74.957630][ T8815] kasan_report+0x12/0x20 [ 74.965575][ T8820] RBP: ffff88809d04fd70 R08: 1ffff11013a09fc2 R09: ffffed1013a09fc8 [ 74.969982][ T8815] check_memory_region+0x134/0x1a0 [ 74.977935][ T8820] R10: ffffed1013a09fc7 R11: ffff88809d04fe3c R12: 000000000000002b [ 74.983033][ T8815] memcpy+0x24/0x50 [ 74.990985][ T8820] R13: ffff88809d04fe12 R14: 0000000000000000 R15: ffffffff8867b340 [ 74.994780][ T8815] llcp_sock_getname+0x358/0x460 [ 75.002733][ T8820] FS: 00000000021a4880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.007659][ T8815] __sys_getpeername+0x12b/0x290 [ 75.016567][ T8820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.021481][ T8815] ? __ia32_sys_getsockname+0xb0/0xb0 [ 75.028129][ T8820] CR2: 0000000000000000 CR3: 000000009abb5000 CR4: 00000000001406f0 [ 75.028140][ T8820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.033492][ T8815] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.041434][ T8820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.049397][ T8815] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.054817][ T8820] Call Trace: [ 75.062774][ T8815] ? do_syscall_64+0x26/0x760 [ 75.068214][ T8820] ? memcpy+0x46/0x50 [ 75.071486][ T8815] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.076135][ T8820] llcp_sock_getname+0x358/0x460 [ 75.080087][ T8815] ? do_syscall_64+0x26/0x760 [ 75.086123][ T8820] __sys_getpeername+0x12b/0x290 [ 75.091032][ T8815] __x64_sys_getpeername+0x73/0xb0 [ 75.095681][ T8820] ? __ia32_sys_getsockname+0xb0/0xb0 [ 75.100592][ T8815] do_syscall_64+0xfa/0x760 [ 75.105686][ T8820] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.111046][ T8815] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.115521][ T8820] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.120946][ T8815] RIP: 0033:0x4412c9 [ 75.126818][ T8820] ? do_syscall_64+0x26/0x760 [ 75.132251][ T8815] 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 [ 75.136116][ T8820] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.140759][ T8815] RSP: 002b:00007ffda7985958 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 75.160348][ T8820] ? do_syscall_64+0x26/0x760 [ 75.166385][ T8815] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 75.174782][ T8820] __x64_sys_getpeername+0x73/0xb0 [ 75.179425][ T8815] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 75.187377][ T8820] do_syscall_64+0xfa/0x760 [ 75.192454][ T8815] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 75.200421][ T8820] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.204900][ T8815] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402040 [ 75.212849][ T8820] RIP: 0033:0x4412c9 [ 75.218721][ T8815] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 75.226678][ T8820] 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 [ 75.230557][ T8815] ================================================================== [ 75.238518][ T8820] RSP: 002b:00007ffda7985958 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 75.274554][ T8820] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 75.282509][ T8820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 75.290469][ T8820] RBP: 0000000000012400 R08: 00000000004002c8 R09: 00000000004002c8 [ 75.298427][ T8820] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402040 [ 75.306377][ T8820] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 75.314344][ T8820] Modules linked in: [ 75.318219][ T8820] CR2: 0000000000000000 [ 75.322374][ T8817] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 75.330179][ T8817] #PF: supervisor read access in kernel mode [ 75.336145][ T8817] #PF: error_code(0x0000) - not-present page [ 75.342109][ T8817] PGD 9c67b067 P4D 9c67b067 PUD 90ffd067 PMD 0 [ 75.348338][ T8817] Oops: 0000 [#2] PREEMPT SMP KASAN [ 75.353517][ T8817] CPU: 1 PID: 8817 Comm: syz-executor355 Tainted: G B D 5.4.0-rc6-next-20191108 #0 [ 75.363901][ T8817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.373947][ T8817] RIP: 0010:memcpy_erms+0x6/0x10 [ 75.378864][ T8817] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 75.398448][ T8817] RSP: 0018:ffff88808e477d50 EFLAGS: 00010246 [ 75.404492][ T8817] RAX: ffff88808e477e12 RBX: ffff88808e477e00 RCX: 000000000000002b [ 75.412451][ T8817] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff88808e477e12 [ 75.420544][ T8817] RBP: ffff88808e477d70 R08: 1ffff11011c8efc2 R09: ffffed1011c8efc8 [ 75.428513][ T8817] R10: ffffed1011c8efc7 R11: ffff88808e477e3c R12: 000000000000002b [ 75.436469][ T8817] R13: ffff88808e477e12 R14: 0000000000000000 R15: ffffffff8867b340 [ 75.444435][ T8817] FS: 00000000021a4880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 75.453355][ T8817] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.459939][ T8817] CR2: 0000000000000000 CR3: 000000009a057000 CR4: 00000000001406e0 [ 75.467913][ T8817] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.475881][ T8817] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.483832][ T8817] Call Trace: [ 75.487109][ T8817] ? memcpy+0x46/0x50 [ 75.491086][ T8817] llcp_sock_getname+0x358/0x460 [ 75.496016][ T8817] __sys_getpeername+0x12b/0x290 [ 75.500938][ T8817] ? __ia32_sys_getsockname+0xb0/0xb0 [ 75.506295][ T8817] ? __kasan_check_write+0x14/0x20 [ 75.511398][ T8817] ? switch_fpu_return+0x1fa/0x4f0 [ 75.516496][ T8817] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 75.522564][ T8817] __x64_sys_getpeername+0x73/0xb0 [ 75.527676][ T8817] do_syscall_64+0xfa/0x760 [ 75.532165][ T8817] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.538140][ T8817] RIP: 0033:0x4412c9 [ 75.542020][ T8817] 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 [ 75.561615][ T8817] RSP: 002b:00007ffda7985958 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 75.570110][ T8817] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 75.578063][ T8817] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 75.586806][ T8817] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 75.594854][ T8817] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402040 [ 75.602920][ T8817] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 75.610892][ T8817] Modules linked in: [ 75.614783][ T8817] CR2: 0000000000000000 [ 75.618955][ T8819] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 75.623730][ T8817] ---[ end trace 3a0895291eb25e08 ]--- [ 75.626778][ T8819] #PF: supervisor read access in kernel mode [ 75.626784][ T8819] #PF: error_code(0x0000) - not-present page [ 75.626790][ T8819] PGD a5f0c067 P4D a5f0c067 PUD 9740e067 PMD 0 [ 75.626812][ T8819] Oops: 0000 [#3] PREEMPT SMP KASAN [ 75.626829][ T8819] CPU: 0 PID: 8819 Comm: syz-executor355 Tainted: G B D 5.4.0-rc6-next-20191108 #0 [ 75.632818][ T8817] RIP: 0010:memcpy_erms+0x6/0x10 [ 75.638231][ T8819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.638244][ T8819] RIP: 0010:memcpy_erms+0x6/0x10 executing program executing program executing program executing program executing program [ 75.638255][ T8819] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 75.638263][ T8819] RSP: 0018:ffff88809abc7d50 EFLAGS: 00010246 [ 75.638273][ T8819] RAX: ffff88809abc7e12 RBX: ffff88809abc7e00 RCX: 000000000000002b [ 75.638284][ T8819] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff88809abc7e12 [ 75.638297][ T8819] RBP: ffff88809abc7d70 R08: 1ffff11013578fc2 R09: ffffed1013578fc8 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 [ 75.646820][ T8817] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 75.650486][ T8819] R10: ffffed1013578fc7 R11: ffff88809abc7e3c R12: 000000000000002b [ 75.650494][ T8819] R13: ffff88809abc7e12 R14: 0000000000000000 R15: ffffffff8867b340 [ 75.650506][ T8819] FS: 00000000021a4880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.650513][ T8819] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.650525][ T8819] CR2: 0000000000000000 CR3: 00000000a5e24000 CR4: 00000000001406f0 executing program executing program executing program [ 75.658592][ T8817] RSP: 0018:ffff88809d04fd50 EFLAGS: 00010246 [ 75.666271][ T8819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.666283][ T8819] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.666289][ T8819] Call Trace: [ 75.666306][ T8819] ? memcpy+0x46/0x50 [ 75.666320][ T8819] llcp_sock_getname+0x358/0x460 [ 75.666339][ T8819] __sys_getpeername+0x12b/0x290 [ 75.671767][ T8817] RAX: ffff88809d04fe12 RBX: ffff88809d04fe00 RCX: 000000000000002b [ 75.681391][ T8819] ? __ia32_sys_getsockname+0xb0/0xb0 [ 75.681411][ T8819] ? __kasan_check_write+0x14/0x20 [ 75.681423][ T8819] ? switch_fpu_return+0x1fa/0x4f0 [ 75.681435][ T8819] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 75.681452][ T8819] __x64_sys_getpeername+0x73/0xb0 [ 75.688914][ T8817] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff88809d04fe12 [ 75.705981][ T8819] do_syscall_64+0xfa/0x760 [ 75.705997][ T8819] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.706006][ T8819] RIP: 0033:0x4412c9 [ 75.706019][ T8819] 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 [ 75.706025][ T8819] RSP: 002b:00007ffda7985958 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 75.706035][ T8819] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 75.706048][ T8819] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 75.712705][ T8817] RBP: ffff88809d04fd70 R08: 1ffff11013a09fc2 R09: ffffed1013a09fc8 [ 75.720072][ T8819] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 75.720079][ T8819] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402040 [ 75.720084][ T8819] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 75.720097][ T8819] Modules linked in: [ 75.720107][ T8819] CR2: 0000000000000000 [ 75.724396][ T8819] ---[ end trace 3a0895291eb25e09 ]--- [ 75.743437][ T8817] R10: ffffed1013a09fc7 R11: ffff88809d04fe3c R12: 000000000000002b [ 75.756277][ T8819] RIP: 0010:memcpy_erms+0x6/0x10 [ 75.785799][ T8817] R13: ffff88809d04fe12 R14: 0000000000000000 R15: ffffffff8867b340 [ 75.789583][ T8819] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 75.804147][ T8815] Kernel panic - not syncing: panic_on_warn set ... [ 75.812061][ T8819] RSP: 0018:ffff88809d04fd50 EFLAGS: 00010246 [ 75.820997][ T8815] Kernel Offset: disabled [ 76.041365][ T8815] Rebooting in 86400 seconds..