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 '10.128.0.5' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.416586] FAULT_INJECTION: forcing a failure. [ 31.416586] name failslab, interval 1, probability 0, space 0, times 1 [ 31.427916] CPU: 1 PID: 3568 Comm: syzkaller481640 Not tainted 4.16.0+ #82 [ 31.434934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.444276] Call Trace: [ 31.446868] dump_stack+0x185/0x1d0 [ 31.450493] should_fail+0x87b/0xab0 [ 31.454190] ================================================================== [ 31.461535] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 31.468259] CPU: 1 PID: 3568 Comm: syzkaller481640 Not tainted 4.16.0+ #82 [ 31.475240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.484564] Call Trace: [ 31.487127] dump_stack+0x14a/0x1d0 [ 31.490729] ? kernel_text_address+0x248/0x3a0 [ 31.495285] kmsan_report+0x142/0x240 [ 31.499062] __msan_warning_32+0x6c/0xb0 [ 31.503099] kernel_text_address+0x248/0x3a0 [ 31.507486] __kernel_text_address+0x34/0xe0 [ 31.511869] show_trace_log_lvl+0x954/0x1030 [ 31.516252] ? should_failslab+0x279/0x2a0 [ 31.520469] show_stack+0xfc/0x150 [ 31.523985] ? print_worker_info+0x1b0/0x660 [ 31.528367] dump_stack+0x185/0x1d0 [ 31.531970] should_fail+0x87b/0xab0 [ 31.535660] should_failslab+0x279/0x2a0 [ 31.539701] __kmalloc_track_caller+0x208/0xcb0 [ 31.544348] ? strndup_user+0x134/0x1f0 [ 31.548300] memdup_user+0x7c/0x200 [ 31.551901] strndup_user+0x134/0x1f0 [ 31.555678] SYSC_add_key+0x26c/0x960 [ 31.559453] SyS_add_key+0x77/0xa0 [ 31.562967] do_syscall_64+0x309/0x430 [ 31.566828] ? keyring_detect_cycle_iterator+0x110/0x110 [ 31.572254] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 31.577415] RIP: 0033:0x4459c9 [ 31.580578] RSP: 002b:00007f155ea66d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8 [ 31.588259] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 00000000004459c9 [ 31.595504] RDX: 0000000020000240 RSI: 00000000200000c0 RDI: 0000000020000080 [ 31.603002] RBP: 0000000000000000 R08: 0000000013086075 R09: 0000000000000031 [ 31.610254] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc20 [ 31.617497] R13: 00007f155ea66d80 R14: 0000000000000003 R15: 00676e697279656b [ 31.624743] [ 31.626343] Local variable description: ----name@__fsnotify_parent [ 31.632627] Variable was created at: [ 31.636313] __fsnotify_parent+0x75/0x560 [ 31.640430] __fput+0x269/0xa10 [ 31.643677] ================================================================== [ 31.651004] Disabling lock debugging due to kernel taint [ 31.656431] Kernel panic - not syncing: panic_on_warn set ... [ 31.656431] [ 31.663767] CPU: 1 PID: 3568 Comm: syzkaller481640 Tainted: G B 4.16.0+ #82 [ 31.672053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.681375] Call Trace: [ 31.683951] dump_stack+0x14a/0x1d0 [ 31.687567] panic+0x39d/0x940 [ 31.690745] ? kernel_text_address+0x248/0x3a0 [ 31.695303] kmsan_report+0x238/0x240 [ 31.699078] __msan_warning_32+0x6c/0xb0 [ 31.703114] kernel_text_address+0x248/0x3a0 [ 31.707497] __kernel_text_address+0x34/0xe0 [ 31.711879] show_trace_log_lvl+0x954/0x1030 [ 31.716264] ? should_failslab+0x279/0x2a0 [ 31.720475] show_stack+0xfc/0x150 [ 31.723990] ? print_worker_info+0x1b0/0x660 [ 31.728374] dump_stack+0x185/0x1d0 [ 31.731979] should_fail+0x87b/0xab0 [ 31.735669] should_failslab+0x279/0x2a0 [ 31.739714] __kmalloc_track_caller+0x208/0xcb0 [ 31.744360] ? strndup_user+0x134/0x1f0 [ 31.748310] memdup_user+0x7c/0x200 [ 31.751912] strndup_user+0x134/0x1f0 [ 31.755685] SYSC_add_key+0x26c/0x960 [ 31.759461] SyS_add_key+0x77/0xa0 [ 31.762977] do_syscall_64+0x309/0x430 [ 31.766841] ? keyring_detect_cycle_iterator+0x110/0x110 [ 31.772267] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 31.777427] RIP: 0033:0x4459c9 [ 31.780589] RSP: 002b:00007f155ea66d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8 [ 31.788267] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 00000000004459c9 [ 31.795511] RDX: 0000000020000240 RSI: 00000000200000c0 RDI: 0000000020000080 [ 31.802755] RBP: 0000000000000000 R08: 0000000013086075 R09: 0000000000000031 [ 31.809998] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc20 [ 31.817249] R13: 00007f155ea66d80 R14: 0000000000000003 R15: 00676e697279656b [ 31.824913] Dumping ftrace buffer: [ 31.828426] (ftrace buffer empty) [ 31.832111] Kernel Offset: disabled [ 31.835712] Rebooting in 86400 seconds..