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 '10.128.0.37' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.896628] FAULT_INJECTION: forcing a failure. [ 31.896628] name failslab, interval 1, probability 0, space 0, times 1 [ 31.907934] CPU: 0 PID: 3571 Comm: syzkaller664420 Not tainted 4.16.0+ #82 [ 31.914938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.924283] Call Trace: [ 31.926894] dump_stack+0x185/0x1d0 [ 31.930538] should_fail+0x87b/0xab0 [ 31.934252] ================================================================== [ 31.941594] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 31.948325] CPU: 0 PID: 3571 Comm: syzkaller664420 Not tainted 4.16.0+ #82 [ 31.955306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.964635] Call Trace: [ 31.967203] dump_stack+0x14a/0x1d0 [ 31.970810] ? kernel_text_address+0x248/0x3a0 [ 31.975372] kmsan_report+0x142/0x240 [ 31.979151] __msan_warning_32+0x6c/0xb0 [ 31.983193] kernel_text_address+0x248/0x3a0 [ 31.987580] __kernel_text_address+0x34/0xe0 [ 31.991966] show_trace_log_lvl+0x954/0x1030 [ 31.996354] ? should_failslab+0x279/0x2a0 [ 32.000673] show_stack+0xfc/0x150 [ 32.004189] ? print_worker_info+0x1b0/0x660 [ 32.008573] dump_stack+0x185/0x1d0 [ 32.012182] should_fail+0x87b/0xab0 [ 32.015872] should_failslab+0x279/0x2a0 [ 32.019909] kmem_cache_alloc_node+0x151/0xc70 [ 32.024466] ? __alloc_skb+0x203/0x9f0 [ 32.028333] ? netlink_autobind+0x981/0x9e0 [ 32.032632] __alloc_skb+0x203/0x9f0 [ 32.036331] netlink_sendmsg+0x9a6/0x1310 [ 32.042841] ? netlink_getsockopt+0xc80/0xc80 [ 32.047316] sock_write_iter+0x3b9/0x470 [ 32.051357] ? sock_read_iter+0x480/0x480 [ 32.055479] __vfs_write+0x719/0x910 [ 32.060289] vfs_write+0x463/0x8d0 [ 32.063813] SYSC_write+0x172/0x360 [ 32.067417] SyS_write+0x55/0x80 [ 32.070761] do_syscall_64+0x309/0x430 [ 32.074625] ? SYSC_read+0x360/0x360 [ 32.078318] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.085736] RIP: 0033:0x445869 [ 32.088902] RSP: 002b:00007f8ad78b2d78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 32.096584] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445869 [ 32.104556] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 32.111800] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000031 [ 32.119045] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 32.126290] R13: 00007f8ad78b2d80 R14: 00000000006dac20 R15: 0000000000000004 [ 32.133536] [ 32.135135] Local variable description: ----flags.i.i.i@rcu_all_qs [ 32.141853] Variable was created at: [ 32.145552] rcu_all_qs+0x32/0x1f0 [ 32.149065] _cond_resched+0x3c/0xd0 [ 32.152748] ================================================================== [ 32.160079] Disabling lock debugging due to kernel taint [ 32.165512] Kernel panic - not syncing: panic_on_warn set ... [ 32.165512] [ 32.172992] CPU: 0 PID: 3571 Comm: syzkaller664420 Tainted: G B 4.16.0+ #82 [ 32.181276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.190605] Call Trace: [ 32.193178] dump_stack+0x14a/0x1d0 [ 32.196786] panic+0x39d/0x940 [ 32.199965] ? kernel_text_address+0x248/0x3a0 [ 32.204522] kmsan_report+0x238/0x240 [ 32.208299] __msan_warning_32+0x6c/0xb0 [ 32.212337] kernel_text_address+0x248/0x3a0 [ 32.216719] __kernel_text_address+0x34/0xe0 [ 32.221115] show_trace_log_lvl+0x954/0x1030 [ 32.225503] ? should_failslab+0x279/0x2a0 [ 32.229719] show_stack+0xfc/0x150 [ 32.233231] ? print_worker_info+0x1b0/0x660 [ 32.237616] dump_stack+0x185/0x1d0 [ 32.241221] should_fail+0x87b/0xab0 [ 32.244911] should_failslab+0x279/0x2a0 [ 32.248949] kmem_cache_alloc_node+0x151/0xc70 [ 32.253506] ? __alloc_skb+0x203/0x9f0 [ 32.257370] ? netlink_autobind+0x981/0x9e0 [ 32.261665] __alloc_skb+0x203/0x9f0 [ 32.265356] netlink_sendmsg+0x9a6/0x1310 [ 32.269480] ? netlink_getsockopt+0xc80/0xc80 [ 32.273958] sock_write_iter+0x3b9/0x470 [ 32.277996] ? sock_read_iter+0x480/0x480 [ 32.282128] __vfs_write+0x719/0x910 [ 32.285820] vfs_write+0x463/0x8d0 [ 32.289339] SYSC_write+0x172/0x360 [ 32.292942] SyS_write+0x55/0x80 [ 32.296305] do_syscall_64+0x309/0x430 [ 32.300167] ? SYSC_read+0x360/0x360 [ 32.303857] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.309026] RIP: 0033:0x445869 [ 32.312196] RSP: 002b:00007f8ad78b2d78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 32.319881] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445869 [ 32.327128] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 32.334371] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000031 [ 32.341621] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 32.348868] R13: 00007f8ad78b2d80 R14: 00000000006dac20 R15: 0000000000000004 [ 32.356607] Dumping ftrace buffer: [ 32.360129] (ftrace buffer empty) [ 32.363811] Kernel Offset: disabled [ 32.367410] Rebooting in 86400 seconds..