[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 29.657080] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 34.337427] random: sshd: uninitialized urandom read (32 bytes read) [ 34.633501] random: sshd: uninitialized urandom read (32 bytes read) [ 35.731389] random: sshd: uninitialized urandom read (32 bytes read) [ 44.309176] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. [ 49.720970] random: sshd: uninitialized urandom read (32 bytes read) 2018/05/16 06:10:13 parsed 1 programs 2018/05/16 06:10:13 executed programs: 0 [ 50.262183] IPVS: ftp: loaded support on port[0] = 21 [ 50.302344] FAULT_INJECTION: forcing a failure. [ 50.302344] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 50.314349] CPU: 1 PID: 4513 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #94 [ 50.321545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.330903] Call Trace: [ 50.333506] dump_stack+0x185/0x1d0 [ 50.337139] should_fail+0x87b/0xab0 [ 50.340862] __alloc_pages_nodemask+0x61c/0x5dd0 [ 50.346435] ? is_bpf_text_address+0xb4/0x4b0 [ 50.350979] ? kernel_text_address+0x34d/0x3a0 [ 50.355603] ? __kernel_text_address+0x34/0xe0 [ 50.360200] ? __alloc_pages_nodemask+0xf8e/0x5dd0 [ 50.365166] alloc_pages_current+0x6b5/0x970 [ 50.369587] __change_page_attr_set_clr+0x1904/0x5de0 [ 50.374793] ? update_load_avg+0x21fe/0x2d00 [ 50.379224] __change_page_attr_set_clr+0x4f86/0x5de0 [ 50.384409] ? rcu_segcblist_enqueue+0x189/0x2d0 [ 50.389163] ? kmsan_set_origin_inline+0x6b/0x120 [ 50.394015] ? __msan_poison_alloca+0x15c/0x1d0 [ 50.398690] ? __purge_vmap_area_lazy+0x2f0/0x3b0 [ 50.403543] ? __purge_vmap_area_lazy+0x2f0/0x3b0 [ 50.408407] ? __purge_vmap_area_lazy+0x369/0x3b0 [ 50.413266] ? mutex_unlock+0x15/0x80 [ 50.417078] change_page_attr_set_clr+0x8ea/0x1e00 [ 50.422117] set_memory_ro+0xd0/0x100 [ 50.425919] bpf_prog_select_runtime+0x3a5/0xa40 [ 50.430689] bpf_prepare_filter+0x1a96/0x1b10 [ 50.435194] __get_filter+0x5b7/0x7d0 [ 50.439002] sk_attach_filter+0x72/0x2e0 [ 50.443075] sock_setsockopt+0x336e/0x46f0 [ 50.447321] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 50.452702] __sys_setsockopt+0x33e/0x560 [ 50.456865] __x64_sys_setsockopt+0x15c/0x1c0 [ 50.461359] do_syscall_64+0x154/0x220 [ 50.465244] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.470427] RIP: 0033:0x455a09 [ 50.473603] RSP: 002b:00007ffe00660e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 50.481305] RAX: ffffffffffffffda RBX: 0000000001a5a914 RCX: 0000000000455a09 [ 50.488581] RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000003 [ 50.495841] RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 [ 50.503102] R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000004 [ 50.510365] R13: 00000000000005de R14: 00000000006fcd70 R15: 000000000000000c [ 50.517860] WARNING: CPU: 1 PID: 4513 at ./include/linux/filter.h:651 bpf_prog_select_runtime+0x95b/0xa40 [ 50.527561] Kernel panic - not syncing: panic_on_warn set ... [ 50.527561] [ 50.534932] CPU: 1 PID: 4513 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #94 [ 50.542105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.551546] Call Trace: [ 50.554135] dump_stack+0x185/0x1d0 [ 50.557757] panic+0x39d/0x940 [ 50.560957] ? disable_trace_on_warning+0x18/0xd0 [ 50.565796] __warn+0x40f/0x580 [ 50.569070] ? bpf_prog_select_runtime+0x95b/0xa40 [ 50.573998] report_bug+0x72a/0x880 [ 50.577636] ? bpf_prog_select_runtime+0x95b/0xa40 [ 50.582593] do_error_trap+0x1cc/0x620 [ 50.586492] ? change_page_attr_set_clr+0xb1c/0x1e00 [ 50.591610] do_invalid_op+0x46/0x50 [ 50.595338] invalid_op+0x14/0x20 [ 50.598794] RIP: 0010:bpf_prog_select_runtime+0x95b/0xa40 [ 50.604317] RSP: 0018:ffff8801c966fa00 EFLAGS: 00010293 [ 50.609676] RAX: ffffffff8176dc7b RBX: ffff8801ce614358 RCX: ffff8801ce613a80 [ 50.616946] RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 [ 50.624217] RBP: ffff8801c966fad0 R08: 00000000000000a4 R09: ffff8801c967f7a0 [ 50.631478] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 50.638737] R13: 0000000000000004 R14: 00000000fffffff4 R15: ffffc900018dd000 [ 50.646011] ? bpf_prog_select_runtime+0x95b/0xa40 [ 50.650968] bpf_prepare_filter+0x1a96/0x1b10 [ 50.655478] __get_filter+0x5b7/0x7d0 [ 50.659287] sk_attach_filter+0x72/0x2e0 [ 50.663374] sock_setsockopt+0x336e/0x46f0 [ 50.667617] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 50.672988] __sys_setsockopt+0x33e/0x560 [ 50.677149] __x64_sys_setsockopt+0x15c/0x1c0 [ 50.681638] do_syscall_64+0x154/0x220 [ 50.685525] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.690703] RIP: 0033:0x455a09 [ 50.693967] RSP: 002b:00007ffe00660e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 50.701678] RAX: ffffffffffffffda RBX: 0000000001a5a914 RCX: 0000000000455a09 [ 50.708937] RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000003 [ 50.716201] RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 [ 50.723461] R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000004 [ 50.730721] R13: 00000000000005de R14: 00000000006fcd70 R15: 000000000000000c [ 50.738482] Dumping ftrace buffer: [ 50.742014] (ftrace buffer empty) [ 50.745714] Kernel Offset: disabled [ 50.749358] Rebooting in 86400 seconds..