[ 11.447850] random: sshd: uninitialized urandom read (32 bytes read) [....] 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: [ 15.803776] random: sshd: uninitialized urandom read (32 bytes read) [ 16.022027] audit: type=1400 audit(1567651794.027:6): avc: denied { map } for pid=1759 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 [ 16.060565] random: sshd: uninitialized urandom read (32 bytes read) [ 16.562148] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts. [ 22.259092] urandom_read: 1 callbacks suppressed [ 22.259097] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program [ 22.361679] audit: type=1400 audit(1567651800.367:7): avc: denied { map } for pid=1777 comm="syz-executor032" path="/root/syz-executor032998207" 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 [ 39.230796] ------------[ cut here ]------------ [ 39.235665] WARNING: CPU: 0 PID: 4034 at kernel/events/core.c:1690 add_event_to_ctx+0x84a/0xa70 [ 39.244495] Kernel panic - not syncing: panic_on_warn set ... [ 39.244495] [ 39.251935] CPU: 0 PID: 4034 Comm: syz-executor032 Not tainted 4.14.141+ #0 [ 39.259015] Call Trace: [ 39.261579] [ 39.263714] dump_stack+0xca/0x134 [ 39.267246] panic+0x1ea/0x3d3 [ 39.270420] ? add_taint.cold+0x16/0x16 [ 39.274380] ? add_event_to_ctx+0x84a/0xa70 [ 39.278798] ? __probe_kernel_read+0x163/0x1c0 [ 39.283366] ? add_event_to_ctx+0x84a/0xa70 [ 39.287753] __warn.cold+0x2f/0x3a [ 39.291288] ? __lock_acquire+0x5d7/0x4320 [ 39.295523] ? add_event_to_ctx+0x84a/0xa70 [ 39.299828] report_bug+0x20a/0x248 [ 39.303444] do_error_trap+0x1bf/0x2d0 [ 39.307401] ? math_error+0x2d0/0x2d0 [ 39.311189] ? trace_hardirqs_on+0x10/0x10 [ 39.315411] ? debug_object_deactivate+0x1e4/0x360 [ 39.320428] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.325257] invalid_op+0x18/0x40 [ 39.328694] RIP: 0010:add_event_to_ctx+0x84a/0xa70 [ 39.333602] RSP: 0000:ffff8881dba07ec8 EFLAGS: 00010006 [ 39.339381] RAX: ffff8881cc7d9780 RBX: ffff8881cc146600 RCX: 1ffff1103983c661 [ 39.346632] RDX: 0000000000010000 RSI: 00000000ffffffff RDI: ffff8881cc146808 [ 39.353886] RBP: ffff8881cc1e2200 R08: ffff88821ffff01c R09: ffff88821ffff008 [ 39.361140] R10: ffff88821ffff017 R11: ffff88821ffff010 R12: ffff8881dba31fc0 [ 39.368486] R13: ffff8881cc1e228c R14: ffff8881dba2e8f0 R15: ffff8881cc1e3300 [ 39.375781] ? add_event_to_ctx+0x84a/0xa70 [ 39.380084] ? ctx_sched_out+0x2fe/0x680 [ 39.384150] __perf_install_in_context+0x241/0x2f0 [ 39.389074] ? tick_program_event+0x80/0xd0 [ 39.393552] ? ctx_resched+0x100/0x100 [ 39.397421] ? perf_duration_warn+0x30/0x30 [ 39.401721] remote_function+0x110/0x190 [ 39.405765] flush_smp_call_function_queue+0xae/0x320 [ 39.410939] smp_call_function_single_interrupt+0xc7/0x530 [ 39.416641] call_function_single_interrupt+0x8c/0xa0 [ 39.421818] [ 39.424062] RIP: 0010:__handle_mm_fault+0x2bc/0x2700 [ 39.429155] RSP: 0000:ffff8881cc287ce8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04 [ 39.436843] RAX: dffffc0000000000 RBX: 1ffff11039850fa3 RCX: 1ffffffff1e11bd8 [ 39.444096] RDX: 1ffff11039921200 RSI: ffff8881ccaa6000 RDI: 00000001cc909067 [ 39.451347] RBP: ffffffff8f08dec0 R08: 0000000000000001 R09: 0000000000000001 [ 39.458796] R10: fffffbfff1e85ba5 R11: ffffffff8f42dd2b R12: 00000000004ccc70 [ 39.466065] R13: ffff8881cc626880 R14: ffff888000000000 R15: ffff8881cc909000 [ 39.473430] ? __handle_mm_fault+0x29f/0x2700 [ 39.477911] ? trace_hardirqs_on_caller+0x37b/0x540 [ 39.482910] ? vm_insert_mixed_mkwrite+0x30/0x30 [ 39.487650] ? free_object+0xe4/0x240 [ 39.491445] ? check_preemption_disabled+0x35/0x1f0 [ 39.496446] ? check_preemption_disabled+0x35/0x1f0 [ 39.501452] handle_mm_fault+0x2f1/0x6da [ 39.505587] __do_page_fault+0x477/0xbb0 [ 39.509640] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 39.514997] ? bad_area_access_error+0x340/0x340 [ 39.519821] ? page_fault+0x2c/0x50 [ 39.523429] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.528254] ? page_fault+0x2c/0x50 [ 39.531863] page_fault+0x42/0x50 [ 39.535297] RIP: 6e0320:0x3 [ 39.538247] RSP: 0001:00007fff8970b7c0 EFLAGS: 00000001 [ 39.539158] Kernel Offset: 0xbc00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 39.555354] Rebooting in 86400 seconds..