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 '10.128.0.55' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.161519] ================================================================== [ 30.168924] BUG: KMSAN: uninit-value in sctp_do_bind+0x60f/0xdc0 [ 30.175048] CPU: 0 PID: 3576 Comm: syzkaller968804 Not tainted 4.16.0+ #82 [ 30.182034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.191374] Call Trace: [ 30.193945] dump_stack+0x185/0x1d0 [ 30.197551] ? sctp_do_bind+0x60f/0xdc0 [ 30.201503] kmsan_report+0x142/0x240 [ 30.205281] __msan_warning_32+0x6c/0xb0 [ 30.209319] sctp_do_bind+0x60f/0xdc0 [ 30.213097] sctp_bind+0x149/0x190 [ 30.216615] ? sctp_recvmsg+0x1190/0x1190 [ 30.220738] inet6_bind+0x1fd/0x1820 [ 30.224428] ? security_socket_bind+0x5d/0x210 [ 30.228987] ? ipv6_mod_enabled+0x60/0x60 [ 30.233120] SYSC_bind+0x3f2/0x4b0 [ 30.236643] SyS_bind+0x54/0x80 [ 30.239901] do_syscall_64+0x309/0x430 [ 30.243778] ? SYSC_socketpair+0x14a0/0x14a0 [ 30.248166] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 30.253330] RIP: 0033:0x43fd49 [ 30.256494] RSP: 002b:00007ffe99df3d28 EFLAGS: 00000213 ORIG_RAX: 0000000000000031 [ 30.264177] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fd49 [ 30.271423] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 30.278670] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.285914] R10: 00000000004002c8 R11: 0000000000000213 R12: 0000000000401670 [ 30.293161] R13: 0000000000401700 R14: 0000000000000000 R15: 0000000000000000 [ 30.300407] [ 30.302006] Local variable description: ----address@SYSC_bind [ 30.307857] Variable was created at: [ 30.311557] SYSC_bind+0x6f/0x4b0 [ 30.314985] SyS_bind+0x54/0x80 [ 30.318234] ================================================================== [ 30.325562] Disabling lock debugging due to kernel taint [ 30.330983] Kernel panic - not syncing: panic_on_warn set ... [ 30.330983] [ 30.338333] CPU: 0 PID: 3576 Comm: syzkaller968804 Tainted: G B 4.16.0+ #82 [ 30.346619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.355946] Call Trace: [ 30.358516] dump_stack+0x185/0x1d0 [ 30.362135] panic+0x39d/0x940 [ 30.365321] ? sctp_do_bind+0x60f/0xdc0 [ 30.369276] kmsan_report+0x238/0x240 [ 30.373067] __msan_warning_32+0x6c/0xb0 [ 30.377124] sctp_do_bind+0x60f/0xdc0 [ 30.380911] sctp_bind+0x149/0x190 [ 30.384437] ? sctp_recvmsg+0x1190/0x1190 [ 30.388572] inet6_bind+0x1fd/0x1820 [ 30.392264] ? security_socket_bind+0x5d/0x210 [ 30.396828] ? ipv6_mod_enabled+0x60/0x60 [ 30.400956] SYSC_bind+0x3f2/0x4b0 [ 30.404476] SyS_bind+0x54/0x80 [ 30.407732] do_syscall_64+0x309/0x430 [ 30.411600] ? SYSC_socketpair+0x14a0/0x14a0 [ 30.415996] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 30.421172] RIP: 0033:0x43fd49 [ 30.424336] RSP: 002b:00007ffe99df3d28 EFLAGS: 00000213 ORIG_RAX: 0000000000000031 [ 30.432020] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fd49 [ 30.439263] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 30.446507] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.453757] R10: 00000000004002c8 R11: 0000000000000213 R12: 0000000000401670 [ 30.461001] R13: 0000000000401700 R14: 0000000000000000 R15: 0000000000000000 [ 30.468695] Dumping ftrace buffer: [ 30.472213] (ftrace buffer empty) [ 30.475895] Kernel Offset: disabled [ 30.479496] Rebooting in 86400 seconds..