[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 29.596545] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 32.524012] random: sshd: uninitialized urandom read (32 bytes read) [ 32.971413] random: sshd: uninitialized urandom read (32 bytes read) [ 34.021731] random: sshd: uninitialized urandom read (32 bytes read) [ 34.221066] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.32' (ECDSA) to the list of known hosts. [ 39.691335] random: sshd: uninitialized urandom read (32 bytes read) 2018/05/16 16:45:31 parsed 1 programs 2018/05/16 16:45:31 executed programs: 0 [ 40.230989] IPVS: ftp: loaded support on port[0] = 21 [ 40.272613] FAULT_INJECTION: forcing a failure. [ 40.272613] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 40.284439] CPU: 0 PID: 4510 Comm: syz-executor0 Not tainted 4.17.0-rc5+ #95 [ 40.291601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.300935] Call Trace: [ 40.303502] dump_stack+0x185/0x1d0 [ 40.307106] should_fail+0x87b/0xab0 [ 40.310799] __alloc_pages_nodemask+0x61c/0x5dd0 [ 40.315532] ? kernel_poison_pages+0x40/0x360 [ 40.320004] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 40.325348] ? kernel_poison_pages+0x1a0/0x360 [ 40.329907] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 40.335333] ? get_page_from_freelist+0xab28/0xb600 [ 40.340325] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 40.345754] ? kmsan_alloc_page+0x82/0xe0 [ 40.349877] ? __alloc_pages_nodemask+0xf8e/0x5dd0 [ 40.354784] kmsan_alloc_meta_for_pages+0x8d/0x3a0 [ 40.359688] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.364506] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.369326] ? __alloc_pages_nodemask+0xb09/0x5dd0 [ 40.374236] kmsan_alloc_page+0x82/0xe0 [ 40.378184] __alloc_pages_nodemask+0xf8e/0x5dd0 [ 40.382917] ? is_bpf_text_address+0xb4/0x4b0 [ 40.387389] ? kernel_text_address+0x34d/0x3a0 [ 40.391948] ? __kernel_text_address+0x34/0xe0 [ 40.396510] ? __alloc_pages_nodemask+0xf8e/0x5dd0 [ 40.401427] alloc_pages_current+0x6b5/0x970 [ 40.405811] __change_page_attr_set_clr+0x1904/0x5de0 [ 40.410978] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.416321] ? update_load_avg+0x21fe/0x2d00 [ 40.420718] __change_page_attr_set_clr+0x4f86/0x5de0 [ 40.425885] ? rcu_segcblist_enqueue+0x189/0x2d0 [ 40.430619] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.435436] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.440080] ? __purge_vmap_area_lazy+0x2f0/0x3b0 [ 40.444899] ? __purge_vmap_area_lazy+0x2f0/0x3b0 [ 40.449720] ? __purge_vmap_area_lazy+0x369/0x3b0 [ 40.454539] ? mutex_unlock+0x15/0x80 [ 40.458319] change_page_attr_set_clr+0x8ea/0x1e00 [ 40.463229] set_memory_ro+0xd0/0x100 [ 40.467009] bpf_prog_select_runtime+0x3a5/0xa40 [ 40.471754] bpf_prepare_filter+0x1a96/0x1b10 [ 40.476232] __get_filter+0x5b7/0x7d0 [ 40.480020] sk_attach_filter+0x72/0x2e0 [ 40.484067] sock_setsockopt+0x336e/0x46f0 [ 40.488282] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.493623] __sys_setsockopt+0x33e/0x560 [ 40.497752] __x64_sys_setsockopt+0x15c/0x1c0 [ 40.502224] do_syscall_64+0x154/0x220 [ 40.506088] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.511252] RIP: 0033:0x455a09 [ 40.514417] RSP: 002b:00007ffe989dffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 40.522098] RAX: ffffffffffffffda RBX: 00000000014ca914 RCX: 0000000000455a09 [ 40.529344] RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000003 [ 40.536588] RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 [ 40.543832] R10: 0000000020004ff0 R11: 0000000000000246 R12: 0000000000000005 [ 40.551074] R13: 00000000000005de R14: 00000000006fcd70 R15: 000000000000000d [ 40.558635] WARNING: CPU: 0 PID: 4510 at ./include/linux/filter.h:651 bpf_prog_select_runtime+0x95b/0xa40 [ 40.568362] Kernel panic - not syncing: panic_on_warn set ... [ 40.568362] [ 40.575736] CPU: 0 PID: 4510 Comm: syz-executor0 Not tainted 4.17.0-rc5+ #95 [ 40.582910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.592251] Call Trace: [ 40.594842] dump_stack+0x185/0x1d0 [ 40.598465] panic+0x39d/0x940 [ 40.601670] ? disable_trace_on_warning+0x18/0xd0 [ 40.606507] __warn+0x40f/0x580 [ 40.609780] ? bpf_prog_select_runtime+0x95b/0xa40 [ 40.614721] report_bug+0x72a/0x880 [ 40.618344] ? bpf_prog_select_runtime+0x95b/0xa40 [ 40.623277] do_error_trap+0x1cc/0x620 [ 40.627172] ? change_page_attr_set_clr+0xb1c/0x1e00 [ 40.632290] do_invalid_op+0x46/0x50 [ 40.636018] invalid_op+0x14/0x20 [ 40.639476] RIP: 0010:bpf_prog_select_runtime+0x95b/0xa40 [ 40.644998] RSP: 0018:ffff8801a6e5fa00 EFLAGS: 00010293 [ 40.650367] RAX: ffffffff8176dc5b RBX: ffff8801d34988d8 RCX: ffff8801d3498000 [ 40.657626] RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 [ 40.664888] RBP: ffff8801a6e5fad0 R08: 00000000000000a4 R09: ffff8801c318f7a0 [ 40.672148] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 40.679406] R13: 0000000000000004 R14: 00000000fffffff4 R15: ffffc900018c5000 [ 40.686685] ? bpf_prog_select_runtime+0x95b/0xa40 [ 40.691629] bpf_prepare_filter+0x1a96/0x1b10 [ 40.696141] __get_filter+0x5b7/0x7d0 [ 40.699949] sk_attach_filter+0x72/0x2e0 [ 40.704031] sock_setsockopt+0x336e/0x46f0 [ 40.708270] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.713640] __sys_setsockopt+0x33e/0x560 [ 40.717805] __x64_sys_setsockopt+0x15c/0x1c0 [ 40.722298] do_syscall_64+0x154/0x220 [ 40.726186] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.731365] RIP: 0033:0x455a09 [ 40.734541] RSP: 002b:00007ffe989dffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 40.742244] RAX: ffffffffffffffda RBX: 00000000014ca914 RCX: 0000000000455a09 [ 40.749503] RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000003 [ 40.756763] RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 [ 40.764033] R10: 0000000020004ff0 R11: 0000000000000246 R12: 0000000000000005 [ 40.771296] R13: 00000000000005de R14: 00000000006fcd70 R15: 000000000000000d [ 40.779013] Dumping ftrace buffer: [ 40.782539] (ftrace buffer empty) [ 40.786230] Kernel Offset: disabled [ 40.789851] Rebooting in 86400 seconds..