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 '10.128.10.11' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.016501] FAULT_INJECTION: forcing a failure. [ 33.016501] name failslab, interval 1, probability 0, space 0, times 1 [ 33.027784] CPU: 0 PID: 3568 Comm: syzkaller095480 Not tainted 4.16.0+ #84 [ 33.034800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.044142] Call Trace: [ 33.046730] dump_stack+0x185/0x1d0 [ 33.050356] should_fail+0x87b/0xab0 [ 33.054060] ================================================================== [ 33.061398] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 [ 33.068124] CPU: 0 PID: 3568 Comm: syzkaller095480 Not tainted 4.16.0+ #84 [ 33.075120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.084458] Call Trace: [ 33.087030] dump_stack+0x14a/0x1d0 [ 33.090645] ? kernel_text_address+0x248/0x3a0 [ 33.095203] kmsan_report+0x142/0x240 [ 33.098977] __msan_warning_32+0x6c/0xb0 [ 33.103021] kernel_text_address+0x248/0x3a0 [ 33.107417] __kernel_text_address+0x34/0xe0 [ 33.111803] show_trace_log_lvl+0x954/0x1030 [ 33.116188] ? should_failslab+0x279/0x2a0 [ 33.120401] show_stack+0xfc/0x150 [ 33.123917] ? print_worker_info+0x1b0/0x660 [ 33.128302] dump_stack+0x185/0x1d0 [ 33.131908] should_fail+0x87b/0xab0 [ 33.135599] should_failslab+0x279/0x2a0 [ 33.139637] __kmalloc+0xc2/0x350 [ 33.143073] ? kmsan_set_origin_inline+0x6b/0x120 [ 33.147907] ? alloc_pipe_info+0xb8/0x8c0 [ 33.152036] alloc_pipe_info+0xb8/0x8c0 [ 33.155989] ? splice_direct_to_actor+0x65/0x1040 [ 33.160805] ? do_splice_direct+0x335/0x540 [ 33.165342] ? splice_direct_to_actor+0xdb/0x1040 [ 33.170162] splice_direct_to_actor+0xe23/0x1040 [ 33.174895] ? do_splice_direct+0x540/0x540 [ 33.179192] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 33.184533] ? security_file_permission+0x28f/0x4b0 [ 33.189527] ? rw_verify_area+0x35e/0x580 [ 33.193656] do_splice_direct+0x335/0x540 [ 33.197784] do_sendfile+0x1067/0x1e40 [ 33.201652] SYSC_sendfile64+0x1b3/0x300 [ 33.205692] SyS_sendfile64+0x64/0x90 [ 33.209468] do_syscall_64+0x309/0x430 [ 33.213332] ? SYSC_sendfile+0x320/0x320 [ 33.217374] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 33.222537] RIP: 0033:0x440589 [ 33.225703] RSP: 002b:00007ffe07d0e618 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 33.233386] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440589 [ 33.240630] RDX: 0000000020000100 RSI: 0000000000000003 RDI: 0000000000000004 [ 33.247875] RBP: 00007ffe07d0e620 R08: 0000000000000001 R09: 65732f636f720031 [ 33.255120] R10: 0000000100000001 R11: 0000000000000246 R12: ffffffffffffffff [ 33.262363] R13: 7461747365697274 R14: 5f6269662f74656e R15: 0000000000000005 [ 33.269608] [ 33.271210] Local variable description: ----d_seq@d_alloc_parallel [ 33.277496] Variable was created at: [ 33.281186] d_alloc_parallel+0xe7/0x22e0 [ 33.285306] path_openat+0x13e8/0x6520 [ 33.289162] ================================================================== [ 33.296493] Disabling lock debugging due to kernel taint [ 33.301914] Kernel panic - not syncing: panic_on_warn set ... [ 33.301914] [ 33.309253] CPU: 0 PID: 3568 Comm: syzkaller095480 Tainted: G B 4.16.0+ #84 [ 33.317540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.326869] Call Trace: [ 33.329434] dump_stack+0x14a/0x1d0 [ 33.333039] panic+0x39d/0x940 [ 33.336218] ? kernel_text_address+0x248/0x3a0 [ 33.340774] kmsan_report+0x238/0x240 [ 33.344550] __msan_warning_32+0x6c/0xb0 [ 33.348588] kernel_text_address+0x248/0x3a0 [ 33.352973] __kernel_text_address+0x34/0xe0 [ 33.357361] show_trace_log_lvl+0x954/0x1030 [ 33.361745] ? should_failslab+0x279/0x2a0 [ 33.365962] show_stack+0xfc/0x150 [ 33.369477] ? print_worker_info+0x1b0/0x660 [ 33.373859] dump_stack+0x185/0x1d0 [ 33.377464] should_fail+0x87b/0xab0 [ 33.381155] should_failslab+0x279/0x2a0 [ 33.385200] __kmalloc+0xc2/0x350 [ 33.388629] ? kmsan_set_origin_inline+0x6b/0x120 [ 33.393448] ? alloc_pipe_info+0xb8/0x8c0 [ 33.397575] alloc_pipe_info+0xb8/0x8c0 [ 33.401527] ? splice_direct_to_actor+0x65/0x1040 [ 33.406347] ? do_splice_direct+0x335/0x540 [ 33.410643] ? splice_direct_to_actor+0xdb/0x1040 [ 33.415461] splice_direct_to_actor+0xe23/0x1040 [ 33.420195] ? do_splice_direct+0x540/0x540 [ 33.424493] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 33.429835] ? security_file_permission+0x28f/0x4b0 [ 33.434831] ? rw_verify_area+0x35e/0x580 [ 33.438961] do_splice_direct+0x335/0x540 [ 33.443087] do_sendfile+0x1067/0x1e40 [ 33.446959] SYSC_sendfile64+0x1b3/0x300 [ 33.450998] SyS_sendfile64+0x64/0x90 [ 33.454776] do_syscall_64+0x309/0x430 [ 33.458639] ? SYSC_sendfile+0x320/0x320 [ 33.462678] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 33.467843] RIP: 0033:0x440589 [ 33.471006] RSP: 002b:00007ffe07d0e618 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 33.478690] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440589 [ 33.485934] RDX: 0000000020000100 RSI: 0000000000000003 RDI: 0000000000000004 [ 33.493181] RBP: 00007ffe07d0e620 R08: 0000000000000001 R09: 65732f636f720031 [ 33.500425] R10: 0000000100000001 R11: 0000000000000246 R12: ffffffffffffffff [ 33.507668] R13: 7461747365697274 R14: 5f6269662f74656e R15: 0000000000000005 [ 33.515381] Dumping ftrace buffer: [ 33.518898] (ftrace buffer empty) [ 33.522579] Kernel Offset: disabled [ 33.526177] Rebooting in 86400 seconds..