[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 30.309313] random: sshd: uninitialized urandom read (32 bytes read) [ 30.624101] audit: type=1400 audit(1537530086.974:6): avc: denied { map } for pid=1771 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 [ 30.669451] random: sshd: uninitialized urandom read (32 bytes read) [ 31.200803] random: sshd: uninitialized urandom read (32 bytes read) [ 48.806088] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.119' (ECDSA) to the list of known hosts. [ 54.305340] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 54.401449] audit: type=1400 audit(1537530110.754:7): avc: denied { map } for pid=1800 comm="syz-executor339" path="/root/syz-executor339185019" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 54.450851] audit: type=1400 audit(1537530110.804:8): avc: denied { map_create } for pid=1801 comm="syz-executor339" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 54.451738] perf buffer not large enough [ 54.451766] ------------[ cut here ]------------ [ 54.451781] WARNING: CPU: 0 PID: 1801 at kernel/trace/trace_event_perf.c:274 perf_trace_buf_alloc.cold.2+0x18/0x2b [ 54.451786] Kernel panic - not syncing: panic_on_warn set ... [ 54.451786] [ 54.451793] CPU: 0 PID: 1801 Comm: syz-executor339 Not tainted 4.14.71+ #8 [ 54.451796] Call Trace: [ 54.451806] dump_stack+0xb9/0x11b [ 54.451826] ? perf_trace_del+0x110/0x175 [ 54.451834] panic+0x1bf/0x3a4 [ 54.451842] ? add_taint.cold.4+0x16/0x16 [ 54.451856] ? __probe_kernel_read+0x163/0x1c0 [ 54.451871] ? perf_trace_buf_alloc.cold.2+0x18/0x2b [ 54.451879] __warn.cold.7+0x148/0x185 [ 54.451888] ? perf_trace_buf_alloc.cold.2+0x18/0x2b [ 54.451897] report_bug+0x1f7/0x26c [ 54.451911] do_error_trap+0x1ba/0x2c0 [ 54.451920] ? math_error+0x2d0/0x2d0 [ 54.451931] ? __down_trylock_console_sem+0x77/0xc0 [ 54.451937] ? vprintk_emit+0x104/0x150 [ 54.451946] ? trace_hardirqs_on_caller+0x381/0x520 [ 54.451955] ? __down_trylock_console_sem+0x61/0xc0 [ 54.451963] ? console_trylock+0x5a/0xf0 [ 54.451973] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.451989] invalid_op+0x18/0x40 [ 54.451998] RIP: 0010:perf_trace_buf_alloc.cold.2+0x18/0x2b [ 54.452002] RSP: 0018:ffff8801cfbd7c28 EFLAGS: 00010282 [ 54.452008] RAX: 000000000000001c RBX: ffff8801d6897180 RCX: 0000000000000000 [ 54.452012] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000297 [ 54.452016] RBP: 0000000000000b44 R08: 0000000000000001 R09: 0000000000000000 [ 54.452021] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801cfbd7cc0 [ 54.452025] R13: ffff8801cfbd7d00 R14: 0000000000000b11 R15: 0000000000000000 [ 54.452050] ? perf_trace_buf_alloc.cold.2+0x18/0x2b [ 54.452062] perf_trace_bpf_map_keyval+0x1d2/0x720 [ 54.452078] ? perf_trace_bpf_map_create+0x6d0/0x6d0 [ 54.452085] ? ___preempt_schedule+0x16/0x18 [ 54.452097] ? preempt_schedule_common+0x1f/0xc0 [ 54.452117] SyS_bpf+0x2ec7/0x3640 [ 54.452131] ? bpf_prog_get+0x20/0x20 [ 54.452139] ? __do_page_fault+0x485/0xb60 [ 54.452148] ? lock_downgrade+0x560/0x560 [ 54.452166] ? up_read+0x17/0x30 [ 54.452172] ? __do_page_fault+0x64c/0xb60 [ 54.452184] ? do_syscall_64+0x43/0x4b0 [ 54.452195] ? bpf_prog_get+0x20/0x20 [ 54.452201] do_syscall_64+0x19b/0x4b0 [ 54.452215] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.452220] RIP: 0033:0x440f29 [ 54.452224] RSP: 002b:00007ffca67af668 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 54.452231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440f29 [ 54.452235] RDX: 0000000000000020 RSI: 0000000020000140 RDI: 0000000000000002 [ 54.452239] RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8 [ 54.452243] R10: 00000000004002c8 R11: 0000000000000217 R12: 0000000000401e70 [ 54.452247] R13: 0000000000401f00 R14: 0000000000000000 R15: 0000000000000000 [ 54.473718] Kernel Offset: 0x11000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 54.755890] Rebooting in 86400 seconds..