[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 32.098482] random: sshd: uninitialized urandom read (32 bytes read) [ 32.348443] kauditd_printk_skb: 9 callbacks suppressed [ 32.348453] audit: type=1400 audit(1571465071.897:35): avc: denied { map } for pid=6887 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 32.407330] random: sshd: uninitialized urandom read (32 bytes read) [ 32.946284] random: sshd: uninitialized urandom read (32 bytes read) [ 39.586997] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. [ 45.138468] random: sshd: uninitialized urandom read (32 bytes read) [ 45.264095] audit: type=1400 audit(1571465084.817:36): avc: denied { map } for pid=6900 comm="syz-executor906" path="/root/syz-executor906558893" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 45.301282] ================================================================== [ 45.308889] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x38f/0x4a0 [ 45.315775] Read of size 43 at addr (null) by task syz-executor906/6914 [ 45.323403] [ 45.325046] CPU: 1 PID: 6914 Comm: syz-executor906 Not tainted 4.14.150 #0 [ 45.332081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.341447] Call Trace: [ 45.344058] dump_stack+0x138/0x197 [ 45.347710] ? llcp_sock_getname+0x38f/0x4a0 [ 45.352227] kasan_report.cold+0x127/0x2af [ 45.356495] check_memory_region+0x123/0x190 [ 45.360923] memcpy+0x24/0x50 [ 45.364058] llcp_sock_getname+0x38f/0x4a0 [ 45.368327] ? security_socket_getpeername+0x79/0xa0 [ 45.373503] SYSC_getpeername+0x120/0x270 [ 45.377696] ? SYSC_getsockname+0x1f0/0x1f0 [ 45.382160] ? trace_hardirqs_on+0xd/0x10 [ 45.386343] ? SyS_listen+0x181/0x230 [ 45.390176] ? SyS_bind+0x30/0x30 [ 45.393645] SyS_getpeername+0x24/0x30 [ 45.397545] ? SyS_getsockname+0x30/0x30 [ 45.401626] do_syscall_64+0x1e8/0x640 [ 45.405539] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.411641] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.416857] RIP: 0033:0x4412b9 [ 45.420073] RSP: 002b:00007ffd72866208 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 45.427793] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 45.435869] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 45.446574] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.453860] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 45.461152] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 45.468450] ================================================================== [ 45.475820] Disabling lock debugging due to kernel taint [ 45.488041] BUG: unable to handle kernel NULL pointer dereference at (null) [ 45.496080] IP: memcpy_erms+0x6/0x10 [ 45.499776] PGD 95e76067 P4D 95e76067 PUD 8eb54067 PMD 0 [ 45.505305] Oops: 0000 [#1] PREEMPT SMP KASAN [ 45.509789] Modules linked in: [ 45.512964] CPU: 1 PID: 6973 Comm: syz-executor906 Tainted: G B 4.14.150 #0 [ 45.521180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.530523] task: ffff8880a709e5c0 task.stack: ffff8880a7018000 [ 45.538128] RIP: 0010:memcpy_erms+0x6/0x10 [ 45.542339] RSP: 0018:ffff8880a701fd20 EFLAGS: 00010246 [ 45.547771] RAX: ffff8880a701fe0a RBX: ffff8880a701fdf8 RCX: 000000000000002b [ 45.555114] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff8880a701fe0a [ 45.563593] RBP: ffff8880a701fd40 R08: 1ffff11014e03fc1 R09: ffffed1014e03fc7 [ 45.570866] R10: ffffed1014e03fc6 R11: ffff8880a701fe34 R12: 000000000000002b [ 45.578130] R13: ffff8880a701fe0a R14: 0000000000000000 R15: ffffffff87069c40 [ 45.585384] FS: 00000000017c2880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 45.593779] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.599737] CR2: 0000000000000000 CR3: 00000000837cc000 CR4: 00000000001406e0 [ 45.607011] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.614370] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.621728] Call Trace: [ 45.624312] ? memcpy+0x46/0x50 [ 45.627580] llcp_sock_getname+0x38f/0x4a0 [ 45.631896] ? security_socket_getpeername+0x79/0xa0 [ 45.637158] SYSC_getpeername+0x120/0x270 [ 45.641303] ? SYSC_getsockname+0x1f0/0x1f0 [ 45.645647] ? trace_hardirqs_on+0xd/0x10 [ 45.649779] ? SyS_listen+0x181/0x230 [ 45.653582] ? SyS_bind+0x30/0x30 [ 45.657027] SyS_getpeername+0x24/0x30 [ 45.660899] ? SyS_getsockname+0x30/0x30 [ 45.664974] do_syscall_64+0x1e8/0x640 [ 45.668995] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.673838] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.679027] RIP: 0033:0x4412b9 [ 45.682195] RSP: 002b:00007ffd72866208 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 45.689905] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 45.697161] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 45.704607] RBP: 000000000000b0ef R08: 00000000004002c8 R09: 00000000004002c8 [ 45.711971] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 45.719220] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 45.726476] Code: 90 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 [ 45.745844] RIP: memcpy_erms+0x6/0x10 RSP: ffff8880a701fd20 [ 45.751534] CR2: 0000000000000000 [ 45.754986] BUG: unable to handle kernel NULL pointer dereference at (null) [ 45.762975] IP: memcpy_erms+0x6/0x10 [ 45.766668] PGD 96a2e067 P4D 96a2e067 PUD 90a8d067 PMD 0 [ 45.772193] Oops: 0000 [#2] PREEMPT SMP KASAN [ 45.777099] Modules linked in: [ 45.780371] CPU: 0 PID: 6974 Comm: syz-executor906 Tainted: G B D 4.14.150 #0 [ 45.788586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.797919] task: ffff8880990866c0 task.stack: ffff8880a7100000 [ 45.804079] RIP: 0010:memcpy_erms+0x6/0x10 [ 45.808295] RSP: 0018:ffff8880a7107d20 EFLAGS: 00010246 [ 45.813827] RAX: ffff8880a7107e0a RBX: ffff8880a7107df8 RCX: 000000000000002b [ 45.821077] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff8880a7107e0a [ 45.828513] RBP: ffff8880a7107d40 R08: 1ffff11014e20fc1 R09: ffffed1014e20fc7 [ 45.835761] R10: ffffed1014e20fc6 R11: ffff8880a7107e34 R12: 000000000000002b [ 45.843010] R13: ffff8880a7107e0a R14: 0000000000000000 R15: ffffffff87069c40 [ 45.850264] FS: 00000000017c2880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 45.858467] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.864569] CR2: 0000000000000000 CR3: 0000000097417000 CR4: 00000000001406f0 [ 45.871845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.879119] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.886474] Call Trace: [ 45.889060] ? memcpy+0x46/0x50 [ 45.892356] llcp_sock_getname+0x38f/0x4a0 [ 45.896762] ? security_socket_getpeername+0x79/0xa0 [ 45.901854] SYSC_getpeername+0x120/0x270 [ 45.905984] ? SYSC_getsockname+0x1f0/0x1f0 [ 45.910297] ? trace_hardirqs_on+0xd/0x10 [ 45.914436] ? SyS_listen+0x181/0x230 [ 45.918219] ? SyS_bind+0x30/0x30 [ 45.921655] SyS_getpeername+0x24/0x30 [ 45.925520] ? SyS_getsockname+0x30/0x30 [ 45.929562] do_syscall_64+0x1e8/0x640 [ 45.933443] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.938877] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.944081] RIP: 0033:0x4412b9 [ 45.947342] RSP: 002b:00007ffd72866208 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 45.955329] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 45.963201] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 45.971670] RBP: 000000000000b0f2 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.978917] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 45.986166] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 45.993432] Code: 90 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 [ 46.012557] RIP: memcpy_erms+0x6/0x10 RSP: ffff8880a7107d20 [ 46.018241] CR2: 0000000000000000 [ 46.021681] BUG: unable to handle kernel NULL pointer dereference at (null) [ 46.029677] IP: memcpy_erms+0x6/0x10 [ 46.033388] PGD 99f9a067 P4D 99f9a067 PUD 96803067 PMD 0 [ 46.038937] Oops: 0000 [#3] PREEMPT SMP KASAN [ 46.043431] Modules linked in: [ 46.046626] CPU: 1 PID: 6915 Comm: syz-executor906 Tainted: G B D 4.14.150 #0 [ 46.054848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.064243] task: ffff88808892c100 task.stack: ffff8880881c8000 [ 46.070308] RIP: 0010:memcpy_erms+0x6/0x10 [ 46.074547] RSP: 0018:ffff8880881cfd20 EFLAGS: 00010246 [ 46.079914] RAX: ffff8880881cfe0a RBX: ffff8880881cfdf8 RCX: 000000000000002b [ 46.087182] RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff8880881cfe0a [ 46.094456] RBP: ffff8880881cfd40 R08: 1ffff11011039fc1 R09: ffffed1011039fc7 [ 46.101728] R10: ffffed1011039fc6 R11: ffff8880881cfe34 R12: 000000000000002b [ 46.109002] R13: ffff8880881cfe0a R14: 0000000000000000 R15: ffffffff87069c40 [ 46.116277] FS: 00000000017c2880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 46.124527] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.131800] CR2: 0000000000000000 CR3: 00000000a8980000 CR4: 00000000001406e0 [ 46.139072] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.146348] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.153616] Call Trace: [ 46.156210] ? memcpy+0x46/0x50 [ 46.159493] llcp_sock_getname+0x38f/0x4a0 [ 46.163822] ? security_socket_getpeername+0x79/0xa0 [ 46.168930] SYSC_getpeername+0x120/0x270 [ 46.173084] ? SYSC_getsockname+0x1f0/0x1f0 [ 46.177413] ? trace_hardirqs_on+0xd/0x10 [ 46.181571] ? SyS_listen+0x181/0x230 [ 46.185371] ? SyS_bind+0x30/0x30 [ 46.188830] SyS_getpeername+0x24/0x30 [ 46.192721] ? SyS_getsockname+0x30/0x30 [ 46.196797] do_syscall_64+0x1e8/0x640 [ 46.200952] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.205804] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.210996] RIP: 0033:0x4412b9 [ 46.214182] RSP: 002b:00007ffd72866208 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 46.221894] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 46.229166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 46.237314] RBP: 000000000000b0e5 R08: 00000000004002c8 R09: 00000000004002c8 [ 46.244594] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 [ 46.247200] ---[ end trace 7bf8b6abaa530d5e ]--- [ 46.251947] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 46.251956] Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 [ 46.257280] Kernel panic - not syncing: Fatal exception [ 46.264014] 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 [ 46.290133] RIP: memcpy_erms+0x6/0x10 RSP: ffff8880881cfd20 [ 46.295823] CR2: 0000000000000000 [ 46.300689] Kernel Offset: disabled [ 46.304313] Rebooting in 86400 seconds..