INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program syzkaller login: [ 31.962513] FAULT_INJECTION: forcing a failure. [ 31.962513] name failslab, interval 1, probability 0, space 0, times 1 [ 31.973455] FAULT_INJECTION: forcing a failure. [ 31.973455] name failslab, interval 1, probability 0, space 0, times 1 [ 31.973878] CPU: 1 PID: 3568 Comm: syzkaller710505 Not tainted 4.16.0+ #83 [ 31.991994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.001354] Call Trace: [ 32.003965] dump_stack+0x185/0x1d0 [ 32.007611] should_fail+0x87b/0xab0 [ 32.011328] ================================================================== [ 32.018690] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 32.025604] CPU: 1 PID: 3568 Comm: syzkaller710505 Not tainted 4.16.0+ #83 [ 32.032595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.041932] Call Trace: [ 32.044510] dump_stack+0x14a/0x1d0 [ 32.048124] ? kernel_text_address+0x248/0x3a0 [ 32.052692] kmsan_report+0x142/0x240 [ 32.056478] __msan_warning_32+0x6c/0xb0 [ 32.060523] kernel_text_address+0x248/0x3a0 [ 32.064916] __kernel_text_address+0x34/0xe0 [ 32.069311] show_trace_log_lvl+0x954/0x1030 [ 32.073703] ? should_failslab+0x279/0x2a0 [ 32.077928] show_stack+0xfc/0x150 [ 32.081450] ? print_worker_info+0x1b0/0x660 [ 32.085931] dump_stack+0x185/0x1d0 [ 32.089545] should_fail+0x87b/0xab0 [ 32.093248] should_failslab+0x279/0x2a0 [ 32.097296] kmem_cache_alloc+0x136/0xb90 [ 32.101427] ? dst_alloc+0x295/0x830 [ 32.105126] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 32.110479] dst_alloc+0x295/0x830 [ 32.114014] ip_route_output_key_hash_rcu+0x2ba3/0x3940 [ 32.119364] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 32.124810] ip_route_output_flow+0x1eb/0x3c0 [ 32.129293] udp_sendmsg+0x2183/0x3180 [ 32.133167] ? __msan_poison_alloca+0x15c/0x1d0 [ 32.137816] ? ip_copy_metadata+0xac0/0xac0 [ 32.142133] ? udp_sendmsg+0x1820/0x3180 [ 32.146179] ? udp_send_skb+0x1320/0x1320 [ 32.150310] inet_sendmsg+0x48d/0x740 [ 32.154096] ? inet_getname+0x500/0x500 [ 32.158056] SYSC_sendto+0x6c3/0x7e0 [ 32.161754] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 32.167189] ? prepare_exit_to_usermode+0x149/0x3a0 [ 32.172197] SyS_sendto+0x8a/0xb0 [ 32.175633] do_syscall_64+0x309/0x430 [ 32.179506] ? SYSC_getpeername+0x560/0x560 [ 32.183821] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.188996] RIP: 0033:0x445d39 [ 32.192169] RSP: 002b:00007ff658db4d68 EFLAGS: 00000216 ORIG_RAX: 000000000000002c [ 32.199858] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000445d39 [ 32.207109] RDX: 000000000000ffe4 RSI: 0000000020865000 RDI: 0000000000000003 [ 32.214359] RBP: 0000000000000000 R08: 0000000020fd9ff0 R09: 0000000000000010 [ 32.221611] R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000000 [ 32.229131] R13: 00000000006dbc20 R14: 00007ff658db4d80 R15: 0000000000000004 [ 32.236386] [ 32.237994] Local variable description: ----success.i.i.i@should_fail [ 32.244550] Variable was created at: [ 32.248249] should_fail+0x57/0xab0 [ 32.251857] should_failslab+0x279/0x2a0 [ 32.255894] ================================================================== [ 32.263237] Disabling lock debugging due to kernel taint [ 32.268674] Kernel panic - not syncing: panic_on_warn set ... [ 32.268674] [ 32.276031] CPU: 1 PID: 3568 Comm: syzkaller710505 Tainted: G B 4.16.0+ #83 [ 32.284332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.293674] Call Trace: [ 32.296260] dump_stack+0x14a/0x1d0 [ 32.299874] panic+0x39d/0x940 [ 32.303072] ? kernel_text_address+0x248/0x3a0 [ 32.307638] kmsan_report+0x238/0x240 [ 32.311422] __msan_warning_32+0x6c/0xb0 [ 32.315467] kernel_text_address+0x248/0x3a0 [ 32.319860] __kernel_text_address+0x34/0xe0 [ 32.324257] show_trace_log_lvl+0x954/0x1030 [ 32.328655] ? should_failslab+0x279/0x2a0 [ 32.332881] show_stack+0xfc/0x150 [ 32.336405] ? print_worker_info+0x1b0/0x660 [ 32.340798] dump_stack+0x185/0x1d0 [ 32.344411] should_fail+0x87b/0xab0 [ 32.348110] should_failslab+0x279/0x2a0 [ 32.352158] kmem_cache_alloc+0x136/0xb90 [ 32.356290] ? dst_alloc+0x295/0x830 [ 32.359985] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 32.365335] dst_alloc+0x295/0x830 [ 32.368867] ip_route_output_key_hash_rcu+0x2ba3/0x3940 [ 32.374215] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 32.379663] ip_route_output_flow+0x1eb/0x3c0 [ 32.384150] udp_sendmsg+0x2183/0x3180 [ 32.388025] ? __msan_poison_alloca+0x15c/0x1d0 [ 32.392681] ? ip_copy_metadata+0xac0/0xac0 [ 32.396997] ? udp_sendmsg+0x1820/0x3180 [ 32.401066] ? udp_send_skb+0x1320/0x1320 [ 32.405199] inet_sendmsg+0x48d/0x740 [ 32.408989] ? inet_getname+0x500/0x500 [ 32.412960] SYSC_sendto+0x6c3/0x7e0 [ 32.416663] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 32.422098] ? prepare_exit_to_usermode+0x149/0x3a0 [ 32.427107] SyS_sendto+0x8a/0xb0 [ 32.430542] do_syscall_64+0x309/0x430 [ 32.434417] ? SYSC_getpeername+0x560/0x560 [ 32.438726] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.443958] RIP: 0033:0x445d39 [ 32.447131] RSP: 002b:00007ff658db4d68 EFLAGS: 00000216 ORIG_RAX: 000000000000002c [ 32.454914] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000445d39 [ 32.462168] RDX: 000000000000ffe4 RSI: 0000000020865000 RDI: 0000000000000003 [ 32.469419] RBP: 0000000000000000 R08: 0000000020fd9ff0 R09: 0000000000000010 [ 32.476671] R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000000 [ 32.483922] R13: 00000000006dbc20 R14: 00007ff658db4d80 R15: 0000000000000004 [ 32.491685] Dumping ftrace buffer: [ 32.495218] (ftrace buffer empty) [ 32.498987] Kernel Offset: disabled [ 32.502593] Rebooting in 86400 seconds..