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 '10.128.0.47' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 46.562241] FAULT_INJECTION: forcing a failure. [ 46.562241] name failslab, interval 1, probability 0, space 0, times 1 [ 46.567570] FAULT_INJECTION: forcing a failure. [ 46.567570] name failslab, interval 1, probability 0, space 0, times 1 [ 46.573544] CPU: 1 PID: 3576 Comm: syzkaller311742 Not tainted 4.16.0+ #82 [ 46.591716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.601060] Call Trace: [ 46.603652] dump_stack+0x185/0x1d0 [ 46.607280] should_fail+0x87b/0xab0 [ 46.610973] ================================================================== [ 46.618312] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 46.625048] CPU: 1 PID: 3576 Comm: syzkaller311742 Not tainted 4.16.0+ #82 [ 46.632035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.641362] Call Trace: [ 46.643926] dump_stack+0x14a/0x1d0 [ 46.647528] ? kernel_text_address+0x248/0x3a0 [ 46.652094] kmsan_report+0x142/0x240 [ 46.655870] __msan_warning_32+0x6c/0xb0 [ 46.659907] kernel_text_address+0x248/0x3a0 [ 46.664290] __kernel_text_address+0x34/0xe0 [ 46.668673] show_trace_log_lvl+0x954/0x1030 [ 46.673056] ? should_failslab+0x279/0x2a0 [ 46.677270] show_stack+0xfc/0x150 [ 46.680783] ? print_worker_info+0x1b0/0x660 [ 46.685167] dump_stack+0x185/0x1d0 [ 46.688770] should_fail+0x87b/0xab0 [ 46.692459] should_failslab+0x279/0x2a0 [ 46.696493] __kmalloc_track_caller+0x208/0xcb0 [ 46.701136] ? strndup_user+0x134/0x1f0 [ 46.705081] ? _cond_resched+0x3c/0xd0 [ 46.708951] memdup_user+0x7c/0x200 [ 46.712557] strndup_user+0x134/0x1f0 [ 46.716333] perf_ioctl+0x1877/0x5460 [ 46.720110] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 46.725445] ? kmsan_set_origin_inline+0x6b/0x120 [ 46.730262] ? __msan_poison_alloca+0x15c/0x1d0 [ 46.734901] ? SYSC_ioctl+0x1d2/0x260 [ 46.738673] ? do_vfs_ioctl+0x160/0x2440 [ 46.742707] ? perf_poll+0x360/0x360 [ 46.746391] do_vfs_ioctl+0xaf0/0x2440 [ 46.750252] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 46.755587] ? __fget_light+0x1f5/0x710 [ 46.759535] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 46.764872] SYSC_ioctl+0x1d2/0x260 [ 46.768482] SyS_ioctl+0x54/0x80 [ 46.771837] do_syscall_64+0x309/0x430 [ 46.775700] ? ioctl_file_clone+0x4f0/0x4f0 [ 46.780000] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 46.785165] RIP: 0033:0x440949 [ 46.788328] RSP: 002b:00007ffc9415b498 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.796007] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440949 [ 46.803258] RDX: 00000000200000c0 RSI: 0000000040082406 RDI: 0000000000000003 [ 46.810500] RBP: 00007ffc9415b4a0 R08: 0000000000000001 R09: 00007ffc94150031 [ 46.817748] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 46.824989] R13: ffffffffffffffff R14: 26306d6514306874 R15: 6574657375706325 [ 46.832230] [ 46.833830] Local variable description: ----__ret.i@d_alloc_parallel [ 46.840286] Variable was created at: [ 46.843975] d_alloc_parallel+0x96/0x22e0 [ 46.848092] path_openat+0x13e8/0x6520 [ 46.851948] ================================================================== [ 46.859273] Disabling lock debugging due to kernel taint [ 46.864716] Kernel panic - not syncing: panic_on_warn set ... [ 46.864716] [ 46.872053] CPU: 1 PID: 3576 Comm: syzkaller311742 Tainted: G B 4.16.0+ #82 [ 46.880335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.889662] Call Trace: [ 46.892227] dump_stack+0x14a/0x1d0 [ 46.895829] panic+0x39d/0x940 [ 46.899004] ? kernel_text_address+0x248/0x3a0 [ 46.903560] kmsan_report+0x238/0x240 [ 46.907334] __msan_warning_32+0x6c/0xb0 [ 46.911370] kernel_text_address+0x248/0x3a0 [ 46.915753] __kernel_text_address+0x34/0xe0 [ 46.920147] show_trace_log_lvl+0x954/0x1030 [ 46.924531] ? should_failslab+0x279/0x2a0 [ 46.928744] show_stack+0xfc/0x150 [ 46.932258] ? print_worker_info+0x1b0/0x660 [ 46.936636] dump_stack+0x185/0x1d0 [ 46.940253] should_fail+0x87b/0xab0 [ 46.943940] should_failslab+0x279/0x2a0 [ 46.947978] __kmalloc_track_caller+0x208/0xcb0 [ 46.952621] ? strndup_user+0x134/0x1f0 [ 46.956567] ? _cond_resched+0x3c/0xd0 [ 46.960428] memdup_user+0x7c/0x200 [ 46.964028] strndup_user+0x134/0x1f0 [ 46.967803] perf_ioctl+0x1877/0x5460 [ 46.971591] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 46.976938] ? kmsan_set_origin_inline+0x6b/0x120 [ 46.981756] ? __msan_poison_alloca+0x15c/0x1d0 [ 46.986402] ? SYSC_ioctl+0x1d2/0x260 [ 46.990188] ? do_vfs_ioctl+0x160/0x2440 [ 46.994222] ? perf_poll+0x360/0x360 [ 46.997906] do_vfs_ioctl+0xaf0/0x2440 [ 47.001767] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 47.007105] ? __fget_light+0x1f5/0x710 [ 47.011052] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 47.016391] SYSC_ioctl+0x1d2/0x260 [ 47.019992] SyS_ioctl+0x54/0x80 [ 47.023330] do_syscall_64+0x309/0x430 [ 47.027190] ? ioctl_file_clone+0x4f0/0x4f0 [ 47.031488] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 47.036649] RIP: 0033:0x440949 [ 47.039812] RSP: 002b:00007ffc9415b498 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.047492] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440949 [ 47.054735] RDX: 00000000200000c0 RSI: 0000000040082406 RDI: 0000000000000003 [ 47.061977] RBP: 00007ffc9415b4a0 R08: 0000000000000001 R09: 00007ffc94150031 [ 47.069220] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 47.076466] R13: ffffffffffffffff R14: 26306d6514306874 R15: 6574657375706325 [ 47.084103] Dumping ftrace buffer: [ 47.087613] (ftrace buffer empty) [ 47.091293] Kernel Offset: disabled [ 47.094890] Rebooting in 86400 seconds..