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 '10.128.0.27' (ECDSA) to the list of known hosts. 2018/04/07 20:57:30 parsed 1 programs 2018/04/07 20:57:30 executed programs: 0 syzkaller login: [ 31.707173] ================================================================== [ 31.714606] BUG: KMSAN: uninit-value in netlink_sendmsg+0xb26/0x1310 [ 31.721105] CPU: 1 PID: 3627 Comm: syz-executor5 Not tainted 4.16.0+ #82 [ 31.727941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.737296] Call Trace: [ 31.739897] dump_stack+0x185/0x1d0 [ 31.743532] ? netlink_sendmsg+0xb26/0x1310 [ 31.747859] kmsan_report+0x142/0x240 [ 31.751673] __msan_warning_32+0x6c/0xb0 [ 31.755744] netlink_sendmsg+0xb26/0x1310 [ 31.759906] ? netlink_getsockopt+0xc80/0xc80 [ 31.764407] ___sys_sendmsg+0xec0/0x1310 [ 31.768482] ? __fdget+0x4e/0x60 [ 31.771852] ? __fget_light+0x56/0x710 [ 31.775735] ? __fdget+0x4e/0x60 [ 31.779103] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 31.784468] ? __fget_light+0x6b9/0x710 [ 31.788457] SYSC_sendmsg+0x2a3/0x3d0 [ 31.792265] SyS_sendmsg+0x54/0x80 [ 31.795805] do_syscall_64+0x309/0x430 [ 31.799696] ? ___sys_sendmsg+0x1310/0x1310 [ 31.804023] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 31.809212] RIP: 0033:0x455259 [ 31.812400] RSP: 002b:00007f51e6869c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.820114] RAX: ffffffffffffffda RBX: 00007f51e686a6d4 RCX: 0000000000455259 [ 31.827393] RDX: 0000000000000000 RSI: 00000000200f4fc8 RDI: 0000000000000003 [ 31.834671] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 31.841945] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 31.849225] R13: 00000000000004f1 R14: 00000000006fa738 R15: 0000000000000000 [ 31.856504] [ 31.858131] Local variable description: ----address@___sys_sendmsg [ 31.864439] Variable was created at: [ 31.868160] ___sys_sendmsg+0xd3/0x1310 [ 31.872138] SYSC_sendmsg+0x2a3/0x3d0 [ 31.875928] ================================================================== [ 31.883277] Disabling lock debugging due to kernel taint [ 31.888726] Kernel panic - not syncing: panic_on_warn set ... [ 31.888726] [ 31.896099] CPU: 1 PID: 3627 Comm: syz-executor5 Tainted: G B 4.16.0+ #82 RESULT: signal 0, coverage 0 errno 0 [ 31.904241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.913603] Call Trace: [ 31.916201] dump_stack+0x185/0x1d0 [ 31.919832] panic+0x39d/0x940 [ 31.923045] ? netlink_sendmsg+0xb26/0x1310 [ 31.927365] kmsan_report+0x238/0x240 [ 31.931168] __msan_warning_32+0x6c/0xb0 [ 31.935233] netlink_sendmsg+0xb26/0x1310 [ 31.939393] ? netlink_getsockopt+0xc80/0xc80 [ 31.943889] ___sys_sendmsg+0xec0/0x1310 [ 31.947958] ? __fdget+0x4e/0x60 [ 31.951327] ? __fget_light+0x56/0x710 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 [ 31.955225] ? __fdget+0x4e/0x60 [ 31.958594] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 31.963963] ? __fget_light+0x6b9/0x710 [ 31.967948] SYSC_sendmsg+0x2a3/0x3d0 [ 31.971758] SyS_sendmsg+0x54/0x80 [ 31.975295] do_syscall_64+0x309/0x430 [ 31.979185] ? ___sys_sendmsg+0x1310/0x1310 [ 31.983510] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 31.988694] RIP: 0033:0x455259 [ 31.991891] RSP: 002b:00007f51e6869c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.999602] RAX: ffffffffffffffda RBX: 00007f51e686a6d4 RCX: 0000000000455259 RESULT: signal 0, coverage 0 errno 0 [ 32.006874] RDX: 0000000000000000 RSI: 00000000200f4fc8 RDI: 0000000000000003 [ 32.014146] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 32.021416] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 32.028689] R13: 00000000000004f1 R14: 00000000006fa738 R15: 0000000000000000 [ 32.037012] Dumping ftrace buffer: [ 32.040590] (ftrace buffer empty) [ 32.044274] Kernel Offset: disabled [ 32.047875] Rebooting in 86400 seconds..