[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 68.727659][ T27] audit: type=1800 audit(1576327680.436:25): pid=9018 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 68.747357][ T27] audit: type=1800 audit(1576327680.436:26): pid=9018 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 68.775078][ T27] audit: type=1800 audit(1576327680.436:27): pid=9018 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 '10.128.0.193' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program syzkaller login: [ 81.271423][ T9185] ================================================================== [ 81.272856][ T9182] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 81.279674][ T9185] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x358/0x460 [ 81.287454][ T9182] #PF: supervisor read access in kernel mode [ 81.294885][ T9185] Read of size 1 at addr 0000000000000000 by task syz-executor409/9185 [ 81.300838][ T9182] #PF: error_code(0x0000) - not-present page [ 81.309054][ T9185] [ 81.315437][ T9182] PGD a6c9d067 P4D a6c9d067 PUD 93084067 PMD 0 [ 81.317751][ T9185] CPU: 0 PID: 9185 Comm: syz-executor409 Not tainted 5.5.0-rc1-next-20191213-syzkaller #0 [ 81.323959][ T9182] Oops: 0000 [#1] PREEMPT SMP KASAN [ 81.333813][ T9185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.339107][ T9182] CPU: 1 PID: 9182 Comm: syz-executor409 Not tainted 5.5.0-rc1-next-20191213-syzkaller #0 [ 81.349144][ T9185] Call Trace: [ 81.359017][ T9182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.362301][ T9185] dump_stack+0x197/0x210 [ 81.372412][ T9182] RIP: 0010:memcpy_erms+0x6/0x10 [ 81.376716][ T9185] ? llcp_sock_getname+0x358/0x460 [ 81.381656][ T9182] Code: cc cc cc cc 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 [ 81.386765][ T9185] ? llcp_sock_getname+0x358/0x460 [ 81.406339][ T9182] RSP: 0018:ffffc90001d07d50 EFLAGS: 00010246 [ 81.411470][ T9185] __kasan_report.cold+0x5/0x41 [ 81.417503][ T9182] RAX: ffffc90001d07e12 RBX: ffffc90001d07e00 RCX: 0000000000000001 [ 81.422343][ T9185] ? llcp_sock_getname+0x358/0x460 [ 81.430290][ T9182] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffc90001d07e12 [ 81.435384][ T9185] kasan_report+0x12/0x20 [ 81.443350][ T9182] RBP: ffffc90001d07d70 R08: 1ffff920003a0fc2 R09: fffff520003a0fc3 [ 81.447658][ T9185] check_memory_region+0x134/0x1a0 [ 81.455874][ T9182] R10: fffff520003a0fc2 R11: ffffc90001d07e12 R12: 0000000000000001 [ 81.460960][ T9185] memcpy+0x24/0x50 [ 81.469076][ T9182] R13: ffffc90001d07e12 R14: 0000000000000000 R15: ffffffff88f4a540 [ 81.472866][ T9185] llcp_sock_getname+0x358/0x460 [ 81.480809][ T9182] FS: 0000000001b7f880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 81.485894][ T9185] __sys_getpeername+0x12b/0x290 [ 81.494790][ T9182] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.499710][ T9185] ? __ia32_sys_getsockname+0xb0/0xb0 [ 81.506287][ T9182] CR2: 0000000000000000 CR3: 00000000969e6000 CR4: 00000000001406e0 [ 81.512072][ T9185] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 81.520026][ T9182] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.525475][ T9185] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 81.533679][ T9182] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.539723][ T9185] ? do_syscall_64+0x26/0x790 [ 81.548355][ T9182] Call Trace: [ 81.553011][ T9185] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.556449][ T9182] ? memcpy+0x46/0x50 [ 81.562489][ T9185] ? do_syscall_64+0x26/0x790 [ 81.566471][ T9182] llcp_sock_getname+0x358/0x460 [ 81.571120][ T9185] __x64_sys_getpeername+0x73/0xb0 [ 81.576034][ T9182] __sys_getpeername+0x12b/0x290 [ 81.581128][ T9185] do_syscall_64+0xfa/0x790 [ 81.586036][ T9182] ? __ia32_sys_getsockname+0xb0/0xb0 [ 81.590546][ T9185] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.595893][ T9182] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 81.601756][ T9185] RIP: 0033:0x4412b9 [ 81.607200][ T9182] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 81.611078][ T9185] 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 [ 81.616517][ T9182] ? do_syscall_64+0x26/0x790 [ 81.636084][ T9185] RSP: 002b:00007ffeac7e08b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 81.640753][ T9182] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.649295][ T9185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 81.655351][ T9182] ? do_syscall_64+0x26/0x790 [ 81.667022][ T9185] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 81.671674][ T9182] __x64_sys_getpeername+0x73/0xb0 [ 81.679874][ T9185] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 81.684960][ T9182] do_syscall_64+0xfa/0x790 [ 81.692897][ T9185] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 81.697377][ T9182] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.705317][ T9185] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 81.711180][ T9182] RIP: 0033:0x4412b9 executing program executing program [ 81.719125][ T9185] ================================================================== [ 81.723013][ T9182] 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 [ 81.753206][ T9182] RSP: 002b:00007ffeac7e08b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 81.761641][ T9182] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 81.770221][ T9182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 81.778799][ T9182] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 81.786894][ T9182] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 81.794858][ T9182] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 81.803268][ T9182] Modules linked in: [ 81.807146][ T9182] CR2: 0000000000000000 [ 81.811526][ T9186] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 81.819336][ T9186] #PF: supervisor read access in kernel mode [ 81.825309][ T9186] #PF: error_code(0x0000) - not-present page [ 81.831270][ T9186] PGD a7058067 P4D a7058067 PUD 8aed2067 PMD 0 [ 81.837493][ T9186] Oops: 0000 [#2] PREEMPT SMP KASAN [ 81.842669][ T9186] CPU: 0 PID: 9186 Comm: syz-executor409 Tainted: G B D 5.5.0-rc1-next-20191213-syzkaller #0 [ 81.854019][ T9186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.864325][ T9186] RIP: 0010:memcpy_erms+0x6/0x10 [ 81.869277][ T9186] Code: cc cc cc cc 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 [ 81.888964][ T9186] RSP: 0018:ffffc90001c27d50 EFLAGS: 00010246 [ 81.895013][ T9186] RAX: ffffc90001c27e12 RBX: ffffc90001c27e00 RCX: 0000000000000001 [ 81.902970][ T9186] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffc90001c27e12 [ 81.910935][ T9186] RBP: ffffc90001c27d70 R08: 1ffff92000384fc2 R09: fffff52000384fc3 [ 81.918898][ T9186] R10: fffff52000384fc2 R11: ffffc90001c27e12 R12: 0000000000000001 [ 81.926854][ T9186] R13: ffffc90001c27e12 R14: 0000000000000000 R15: ffffffff88f4a540 [ 81.934819][ T9186] FS: 0000000001b7f880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 81.943822][ T9186] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.950387][ T9186] CR2: 0000000000000000 CR3: 000000009aae5000 CR4: 00000000001406f0 [ 81.958341][ T9186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.966286][ T9186] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.974241][ T9186] Call Trace: [ 81.977514][ T9186] ? memcpy+0x46/0x50 [ 81.981481][ T9186] llcp_sock_getname+0x358/0x460 [ 81.986726][ T9186] __sys_getpeername+0x12b/0x290 [ 81.991660][ T9186] ? __ia32_sys_getsockname+0xb0/0xb0 [ 81.997034][ T9186] ? up_read+0x1cd/0x810 [ 82.001262][ T9186] ? __kasan_check_write+0x14/0x20 [ 82.006368][ T9186] ? switch_fpu_return+0x1f9/0x4f0 [ 82.011464][ T9186] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 82.017529][ T9186] __x64_sys_getpeername+0x73/0xb0 [ 82.022624][ T9186] do_syscall_64+0xfa/0x790 [ 82.027106][ T9186] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.033251][ T9186] RIP: 0033:0x4412b9 [ 82.037252][ T9186] 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 [ 82.057855][ T9186] RSP: 002b:00007ffeac7e08b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 executing program executing program [ 82.066243][ T9186] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 82.075754][ T9186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 82.083721][ T9186] RBP: 0000000000013d3e R08: 00000000004002c8 R09: 00000000004002c8 [ 82.091668][ T9186] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 82.099612][ T9186] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 82.107564][ T9186] Modules linked in: [ 82.111865][ T9186] CR2: 0000000000000000 [ 82.116047][ T9188] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 82.117362][ T9186] ---[ end trace b09f85e5f5f2138a ]--- [ 82.123851][ T9188] #PF: supervisor read access in kernel mode [ 82.123857][ T9188] #PF: error_code(0x0000) - not-present page [ 82.123864][ T9188] PGD 8d50c067 P4D 8d50c067 PUD 9e246067 PMD 0 [ 82.129432][ T9186] RIP: 0010:memcpy_erms+0x6/0x10 [ 82.135273][ T9188] Oops: 0000 [#3] PREEMPT SMP KASAN [ 82.135289][ T9188] CPU: 1 PID: 9188 Comm: syz-executor409 Tainted: G B D 5.5.0-rc1-next-20191213-syzkaller #0 [ 82.135296][ T9188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.135309][ T9188] RIP: 0010:memcpy_erms+0x6/0x10 [ 82.135326][ T9188] Code: cc cc cc cc 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 [ 82.141503][ T9186] Code: cc cc cc cc 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 [ 82.147480][ T9188] RSP: 0018:ffffc90001d17d50 EFLAGS: 00010246 [ 82.147491][ T9188] RAX: ffffc90001d17e12 RBX: ffffc90001d17e00 RCX: 0000000000000001 [ 82.147498][ T9188] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffc90001d17e12 [ 82.147506][ T9188] RBP: ffffc90001d17d70 R08: 1ffff920003a2fc2 R09: fffff520003a2fc3 [ 82.147513][ T9188] R10: fffff520003a2fc2 R11: ffffc90001d17e12 R12: 0000000000000001 [ 82.147525][ T9188] R13: ffffc90001d17e12 R14: 0000000000000000 R15: ffffffff88f4a540 [ 82.152578][ T9186] RSP: 0018:ffffc90001d07d50 EFLAGS: 00010246 [ 82.157610][ T9188] FS: 0000000001b7f880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.157619][ T9188] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.157626][ T9188] CR2: 0000000000000000 CR3: 000000009ff7f000 CR4: 00000000001406e0 [ 82.157636][ T9188] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.157648][ T9188] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.169265][ T9186] RAX: ffffc90001d07e12 RBX: ffffc90001d07e00 RCX: 0000000000000001 [ 82.178918][ T9188] Call Trace: [ 82.178938][ T9188] ? memcpy+0x46/0x50 [ 82.178957][ T9188] llcp_sock_getname+0x358/0x460 [ 82.178976][ T9188] __sys_getpeername+0x12b/0x290 [ 82.184016][ T9186] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffc90001d07e12 [ 82.203784][ T9188] ? __ia32_sys_getsockname+0xb0/0xb0 [ 82.203799][ T9188] ? up_read+0x1cd/0x810 [ 82.203817][ T9188] ? __kasan_check_write+0x14/0x20 [ 82.203832][ T9188] ? switch_fpu_return+0x1f9/0x4f0 [ 82.203849][ T9188] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 82.203869][ T9188] __x64_sys_getpeername+0x73/0xb0 [ 82.224167][ T9185] Kernel panic - not syncing: panic_on_warn set ... [ 82.229912][ T9188] do_syscall_64+0xfa/0x790 [ 82.394854][ T9188] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.400731][ T9188] RIP: 0033:0x4412b9 [ 82.404611][ T9188] 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 [ 82.424198][ T9188] RSP: 002b:00007ffeac7e08b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 82.432606][ T9188] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 82.440687][ T9188] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 82.448650][ T9188] RBP: 0000000000013d41 R08: 00000000004002c8 R09: 00000000004002c8 [ 82.456616][ T9188] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 82.464579][ T9188] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 82.472671][ T9188] Modules linked in: [ 82.476568][ T9188] CR2: 0000000000000000 [ 82.482134][ T9185] Kernel Offset: disabled [ 82.486496][ T9185] Rebooting in 86400 seconds..