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 'ci-upstream-kasan-gce-2,10.128.0.18' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.143377] ------------[ cut here ]------------ [ 41.144148] WARNING: CPU: 0 PID: 2987 at ./include/net/sock.h:1505 strp_data_ready+0x2b7/0x390 [ 41.145422] Kernel panic - not syncing: panic_on_warn set ... [ 41.145422] [ 41.146395] CPU: 0 PID: 2987 Comm: syzkaller392538 Not tainted 4.14.0-rc5+ #142 [ 41.147371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.148607] Call Trace: [ 41.148985] dump_stack+0x194/0x257 [ 41.149476] ? arch_local_irq_restore+0x53/0x53 [ 41.150110] panic+0x1e4/0x417 [ 41.150545] ? __warn+0x1d9/0x1d9 [ 41.151012] ? show_regs_print_info+0x65/0x65 [ 41.151623] ? strp_data_ready+0x2b7/0x390 [ 41.152189] __warn+0x1c4/0x1d9 [ 41.152636] ? strp_data_ready+0x2b7/0x390 [ 41.153208] report_bug+0x211/0x2d0 [ 41.153703] fixup_bug+0x40/0x90 [ 41.154160] do_trap+0x260/0x390 [ 41.154622] do_error_trap+0x120/0x390 [ 41.155144] ? sk_filter_trim_cap+0x3f3/0x9b0 [ 41.155747] ? do_trap+0x390/0x390 [ 41.156227] ? strp_data_ready+0x2b7/0x390 [ 41.156804] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.157453] do_invalid_op+0x1b/0x20 [ 41.157954] invalid_op+0x18/0x20 [ 41.158421] RIP: 0010:strp_data_ready+0x2b7/0x390 [ 41.159063] RSP: 0018:ffff8801d2a3f7d8 EFLAGS: 00010297 [ 41.159775] RAX: ffff8801d233e440 RBX: ffff8801cfa58c48 RCX: 0000000000000000 [ 41.160727] RDX: 0000000000000000 RSI: ffff8801d1cf00e0 RDI: ffffffff85cbee20 [ 41.161691] RBP: ffff8801d2a3f7f8 R08: 0000000000000002 R09: 1ffffffff0ce0bca [ 41.162664] R10: ffff8801d2a3f6c0 R11: 1ffff1003a467ee3 R12: ffff8801d1cf0040 [ 41.163617] R13: ffff8801cfa58c50 R14: ffff8801d2a3f960 R15: ffff8801d1cf0040 [ 41.170874] ? strp_data_ready+0x2b7/0x390 [ 41.175081] psock_data_ready+0x56/0x70 [ 41.179026] unix_dgram_sendmsg+0xa72/0x1600 [ 41.183417] ? unix_shutdown+0x870/0x870 [ 41.187456] ? kasan_check_write+0x14/0x20 [ 41.191675] unix_seqpacket_sendmsg+0xf3/0x160 [ 41.196224] ? unix_dgram_sendmsg+0x1600/0x1600 [ 41.200863] sock_sendmsg+0xca/0x110 [ 41.204548] ___sys_sendmsg+0x31c/0x890 [ 41.208494] ? copy_msghdr_from_user+0x590/0x590 [ 41.213222] ? find_held_lock+0x35/0x1d0 [ 41.217257] ? handle_mm_fault+0x248/0x8d0 [ 41.221458] ? __fget_light+0x297/0x380 [ 41.225400] ? fget_raw+0x20/0x20 [ 41.228833] ? __do_page_fault+0x64c/0xd60 [ 41.233037] ? lock_downgrade+0x990/0x990 [ 41.237161] ? __fdget+0x18/0x20 [ 41.240499] __sys_sendmmsg+0x1e6/0x5f0 [ 41.244439] ? __sys_sendmmsg+0x1e6/0x5f0 [ 41.248560] ? SyS_sendmsg+0x50/0x50 [ 41.252244] ? mm_fault_error+0x2c0/0x2c0 [ 41.256356] ? do_vfs_ioctl+0x486/0x1520 [ 41.260395] ? __do_page_fault+0xd60/0xd60 [ 41.264598] ? __fd_install+0x68b/0x6a0 [ 41.268541] ? sock_map_fd+0x53/0x70 [ 41.272230] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.277217] SyS_sendmmsg+0x35/0x60 [ 41.280812] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 41.285533] RIP: 0033:0x43fe69 [ 41.288692] RSP: 002b:00007ffff8ce14a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133 [ 41.296364] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe69 [ 41.303600] RDX: 0000000000000001 RSI: 0000000020e83fc4 RDI: 0000000000000004 [ 41.310839] RBP: 0000000000000082 R08: 00000000004017d0 R09: 00000000004017d0 [ 41.319202] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004017d0 [ 41.326438] R13: 0000000000401860 R14: 0000000000000000 R15: 0000000000000000 [ 41.333817] Dumping ftrace buffer: [ 41.337409] (ftrace buffer empty) [ 41.341093] Kernel Offset: disabled [ 41.344692] Rebooting in 86400 seconds..