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 '10.128.0.7' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.676529] FAULT_INJECTION: forcing a failure. [ 29.676529] name failslab, interval 1, probability 0, space 0, times 1 [ 29.687804] CPU: 0 PID: 3580 Comm: syzkaller437100 Not tainted 4.16.0+ #83 [ 29.694809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.704154] Call Trace: [ 29.706746] dump_stack+0x185/0x1d0 [ 29.710370] should_fail+0x87b/0xab0 [ 29.714065] ================================================================== [ 29.721403] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 29.728129] CPU: 0 PID: 3580 Comm: syzkaller437100 Not tainted 4.16.0+ #83 [ 29.735113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.744440] Call Trace: [ 29.747003] dump_stack+0x14a/0x1d0 [ 29.750615] ? kernel_text_address+0x248/0x3a0 [ 29.755172] kmsan_report+0x142/0x240 [ 29.758950] __msan_warning_32+0x6c/0xb0 [ 29.762987] kernel_text_address+0x248/0x3a0 [ 29.767377] __kernel_text_address+0x34/0xe0 [ 29.771762] show_trace_log_lvl+0x954/0x1030 [ 29.776147] ? should_failslab+0x279/0x2a0 [ 29.780369] show_stack+0xfc/0x150 [ 29.783886] ? print_worker_info+0x1b0/0x660 [ 29.788271] dump_stack+0x185/0x1d0 [ 29.791873] should_fail+0x87b/0xab0 [ 29.795564] should_failslab+0x279/0x2a0 [ 29.799601] __kmalloc+0xc2/0x350 [ 29.803040] ? remove_wait_queue+0x1ed/0x2b0 [ 29.807429] ? sock_kmalloc+0x14e/0x270 [ 29.811379] sock_kmalloc+0x14e/0x270 [ 29.815158] af_alg_alloc_areq+0x85/0x320 [ 29.819281] skcipher_recvmsg+0x34b/0x1940 [ 29.823495] ? skcipher_sendmsg+0x160/0x160 [ 29.827793] sock_read_iter+0x405/0x480 [ 29.831747] ? kernel_sock_ip_overhead+0x350/0x350 [ 29.836661] do_iter_readv_writev+0x7bb/0x970 [ 29.841137] ? kernel_sock_ip_overhead+0x350/0x350 [ 29.846044] do_iter_read+0x303/0xd70 [ 29.849821] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 29.855246] do_readv+0x295/0x5f0 [ 29.858677] ? syscall_return_slowpath+0xe9/0x700 [ 29.863495] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 29.868929] SYSC_readv+0x9b/0xb0 [ 29.872359] SyS_readv+0x56/0x80 [ 29.875699] do_syscall_64+0x309/0x430 [ 29.879566] ? vfs_readv+0x260/0x260 [ 29.883260] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 29.888425] RIP: 0033:0x440569 [ 29.891595] RSP: 002b:00007ffe11f23928 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 [ 29.899277] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440569 [ 29.906532] RDX: 0000000000000001 RSI: 00000000206e8ff0 RDI: 0000000000000004 [ 29.913778] RBP: 00007ffe11f23930 R08: 0000000000000001 R09: 0000000000000031 [ 29.921029] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 29.928280] R13: 1321b4ddf1fecdfb R14: 5578aa91bfb5fce5 R15: 0000000000000005 [ 29.935528] [ 29.937128] Local variable description: ----flags.i.i.i@rcu_all_qs [ 29.943413] Variable was created at: [ 29.947103] rcu_all_qs+0x32/0x1f0 [ 29.950615] _cond_resched+0x3c/0xd0 [ 29.954300] ================================================================== [ 29.961630] Disabling lock debugging due to kernel taint [ 29.967052] Kernel panic - not syncing: panic_on_warn set ... [ 29.967052] [ 29.974392] CPU: 0 PID: 3580 Comm: syzkaller437100 Tainted: G B 4.16.0+ #83 [ 29.982679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.992008] Call Trace: [ 29.994580] dump_stack+0x14a/0x1d0 [ 29.998183] panic+0x39d/0x940 [ 30.001362] ? kernel_text_address+0x248/0x3a0 [ 30.005918] kmsan_report+0x238/0x240 [ 30.009694] __msan_warning_32+0x6c/0xb0 [ 30.013736] kernel_text_address+0x248/0x3a0 [ 30.018124] __kernel_text_address+0x34/0xe0 [ 30.022511] show_trace_log_lvl+0x954/0x1030 [ 30.026896] ? should_failslab+0x279/0x2a0 [ 30.031110] show_stack+0xfc/0x150 [ 30.034625] ? print_worker_info+0x1b0/0x660 [ 30.039015] dump_stack+0x185/0x1d0 [ 30.042629] should_fail+0x87b/0xab0 [ 30.046319] should_failslab+0x279/0x2a0 [ 30.050355] __kmalloc+0xc2/0x350 [ 30.053783] ? remove_wait_queue+0x1ed/0x2b0 [ 30.058167] ? sock_kmalloc+0x14e/0x270 [ 30.062115] sock_kmalloc+0x14e/0x270 [ 30.065892] af_alg_alloc_areq+0x85/0x320 [ 30.070039] skcipher_recvmsg+0x34b/0x1940 [ 30.074258] ? skcipher_sendmsg+0x160/0x160 [ 30.078555] sock_read_iter+0x405/0x480 [ 30.082509] ? kernel_sock_ip_overhead+0x350/0x350 [ 30.087413] do_iter_readv_writev+0x7bb/0x970 [ 30.091886] ? kernel_sock_ip_overhead+0x350/0x350 [ 30.096791] do_iter_read+0x303/0xd70 [ 30.100568] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 30.105995] do_readv+0x295/0x5f0 [ 30.109433] ? syscall_return_slowpath+0xe9/0x700 [ 30.114251] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 30.119677] SYSC_readv+0x9b/0xb0 [ 30.123106] SyS_readv+0x56/0x80 [ 30.126446] do_syscall_64+0x309/0x430 [ 30.130309] ? vfs_readv+0x260/0x260 [ 30.134003] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 30.139174] RIP: 0033:0x440569 [ 30.142337] RSP: 002b:00007ffe11f23928 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 [ 30.150026] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440569 [ 30.157277] RDX: 0000000000000001 RSI: 00000000206e8ff0 RDI: 0000000000000004 [ 30.164521] RBP: 00007ffe11f23930 R08: 0000000000000001 R09: 0000000000000031 [ 30.171765] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 30.179013] R13: 1321b4ddf1fecdfb R14: 5578aa91bfb5fce5 R15: 0000000000000005 [ 30.186763] Dumping ftrace buffer: [ 30.190281] (ftrace buffer empty) [ 30.193964] Kernel Offset: disabled [ 30.197565] Rebooting in 86400 seconds..