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 '10.128.0.54' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program syzkaller login: [ 30.738258] FAULT_INJECTION: forcing a failure. [ 30.738258] name failslab, interval 1, probability 0, space 0, times 1 [ 30.740255] FAULT_INJECTION: forcing a failure. [ 30.740255] name failslab, interval 1, probability 0, space 0, times 1 [ 30.749624] CPU: 0 PID: 3574 Comm: syzkaller466533 Not tainted 4.16.0+ #84 [ 30.767793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.777151] Call Trace: [ 30.779767] dump_stack+0x185/0x1d0 [ 30.783414] should_fail+0x87b/0xab0 [ 30.787122] ================================================================== [ 30.794470] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 30.801206] CPU: 0 PID: 3574 Comm: syzkaller466533 Not tainted 4.16.0+ #84 [ 30.808196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.817529] Call Trace: [ 30.820102] dump_stack+0x14a/0x1d0 [ 30.823716] ? kernel_text_address+0x248/0x3a0 [ 30.828280] kmsan_report+0x142/0x240 [ 30.832072] __msan_warning_32+0x6c/0xb0 [ 30.836121] kernel_text_address+0x248/0x3a0 [ 30.840518] __kernel_text_address+0x34/0xe0 [ 30.844918] show_trace_log_lvl+0x954/0x1030 [ 30.849312] ? should_failslab+0x279/0x2a0 [ 30.853538] show_stack+0xfc/0x150 [ 30.857065] ? print_worker_info+0x1b0/0x660 [ 30.861460] dump_stack+0x185/0x1d0 [ 30.865076] should_fail+0x87b/0xab0 [ 30.868780] should_failslab+0x279/0x2a0 [ 30.872829] __kmalloc_track_caller+0x208/0xcb0 [ 30.877486] ? strndup_user+0x134/0x1f0 [ 30.881445] ? _cond_resched+0x3c/0xd0 [ 30.885320] memdup_user+0x7c/0x200 [ 30.888933] strndup_user+0x134/0x1f0 [ 30.892723] perf_ioctl+0x1877/0x5460 [ 30.896514] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 30.901865] ? kmsan_set_origin_inline+0x6b/0x120 [ 30.906691] ? __msan_poison_alloca+0x15c/0x1d0 [ 30.911346] ? SYSC_ioctl+0x1d2/0x260 [ 30.915133] ? do_vfs_ioctl+0x160/0x2440 [ 30.919181] ? perf_poll+0x360/0x360 [ 30.922878] do_vfs_ioctl+0xaf0/0x2440 [ 30.926751] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 30.932101] ? __fget_light+0x1f5/0x710 [ 30.936063] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 30.941416] SYSC_ioctl+0x1d2/0x260 [ 30.945038] SyS_ioctl+0x54/0x80 [ 30.948396] do_syscall_64+0x309/0x430 [ 30.952271] ? ioctl_file_clone+0x4f0/0x4f0 [ 30.956584] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 30.961758] RIP: 0033:0x440919 [ 30.964932] RSP: 002b:00007ffd7c6bc718 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 30.972624] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440919 [ 30.979878] RDX: 00000000200002c0 RSI: 0000000040082406 RDI: 0000000000000003 [ 30.987131] RBP: 00007ffd7c6bc720 R08: 0000000000000001 R09: 0000000000000031 [ 30.994386] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 31.001649] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 31.008921] [ 31.010545] Local variable description: ----__ret.i@d_alloc_parallel [ 31.017023] Variable was created at: [ 31.020750] d_alloc_parallel+0x96/0x22e0 [ 31.024888] path_openat+0x13e8/0x6520 [ 31.028757] ================================================================== [ 31.036102] Disabling lock debugging due to kernel taint [ 31.041541] Kernel panic - not syncing: panic_on_warn set ... [ 31.041541] [ 31.048900] CPU: 0 PID: 3574 Comm: syzkaller466533 Tainted: G B 4.16.0+ #84 [ 31.057198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.066537] Call Trace: [ 31.069129] dump_stack+0x14a/0x1d0 [ 31.072748] panic+0x39d/0x940 [ 31.075945] ? kernel_text_address+0x248/0x3a0 [ 31.080519] kmsan_report+0x238/0x240 [ 31.084313] __msan_warning_32+0x6c/0xb0 [ 31.088368] kernel_text_address+0x248/0x3a0 [ 31.092771] __kernel_text_address+0x34/0xe0 [ 31.097178] show_trace_log_lvl+0x954/0x1030 [ 31.101580] ? should_failslab+0x279/0x2a0 [ 31.105817] show_stack+0xfc/0x150 [ 31.109346] ? print_worker_info+0x1b0/0x660 [ 31.113751] dump_stack+0x185/0x1d0 [ 31.117373] should_fail+0x87b/0xab0 [ 31.121083] should_failslab+0x279/0x2a0 [ 31.125146] __kmalloc_track_caller+0x208/0xcb0 [ 31.129809] ? strndup_user+0x134/0x1f0 [ 31.133774] ? _cond_resched+0x3c/0xd0 [ 31.137657] memdup_user+0x7c/0x200 [ 31.141280] strndup_user+0x134/0x1f0 [ 31.145078] perf_ioctl+0x1877/0x5460 [ 31.148872] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 31.154227] ? kmsan_set_origin_inline+0x6b/0x120 [ 31.159066] ? __msan_poison_alloca+0x15c/0x1d0 [ 31.163730] ? SYSC_ioctl+0x1d2/0x260 [ 31.167522] ? do_vfs_ioctl+0x160/0x2440 [ 31.171579] ? perf_poll+0x360/0x360 [ 31.175284] do_vfs_ioctl+0xaf0/0x2440 [ 31.179164] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 31.184519] ? __fget_light+0x1f5/0x710 [ 31.188485] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 31.193843] SYSC_ioctl+0x1d2/0x260 [ 31.197459] SyS_ioctl+0x54/0x80 [ 31.200816] do_syscall_64+0x309/0x430 [ 31.204698] ? ioctl_file_clone+0x4f0/0x4f0 [ 31.209016] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 31.214205] RIP: 0033:0x440919 [ 31.217379] RSP: 002b:00007ffd7c6bc718 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 31.225076] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440919 [ 31.232338] RDX: 00000000200002c0 RSI: 0000000040082406 RDI: 0000000000000003 [ 31.239603] RBP: 00007ffd7c6bc720 R08: 0000000000000001 R09: 0000000000000031 [ 31.246863] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 31.254129] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 31.261863] Dumping ftrace buffer: [ 31.265387] (ftrace buffer empty) [ 31.269078] Kernel Offset: disabled [ 31.272687] Rebooting in 86400 seconds..