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 '10.128.0.17' (ECDSA) to the list of known hosts. 2018/04/01 22:30:18 parsed 1 programs 2018/04/01 22:30:18 executed programs: 0 syzkaller login: [ 29.433699] IPVS: ftp: loaded support on port[0] = 21 [ 29.475889] ------------[ cut here ]------------ [ 29.480730] add_uevent_var: buffer size too small [ 29.485729] WARNING: CPU: 0 PID: 4393 at lib/kobject_uevent.c:594 add_uevent_var+0x2aa/0x2d0 [ 29.494288] Kernel panic - not syncing: panic_on_warn set ... [ 29.494288] [ 29.501622] CPU: 0 PID: 4393 Comm: syz-executor0 Not tainted 4.16.0-rc7+ #284 [ 29.508864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.518198] Call Trace: [ 29.520759] dump_stack+0x194/0x24d [ 29.524357] ? arch_local_irq_restore+0x53/0x53 [ 29.529000] ? vsnprintf+0x1ed/0x1900 [ 29.532774] panic+0x1e4/0x41c [ 29.535936] ? refcount_error_report+0x214/0x214 [ 29.540663] ? show_regs_print_info+0x18/0x18 [ 29.545131] ? __warn+0x1c1/0x200 [ 29.548553] ? add_uevent_var+0x2aa/0x2d0 [ 29.552670] __warn+0x1dc/0x200 [ 29.555920] ? add_uevent_var+0x2aa/0x2d0 [ 29.560038] report_bug+0x1f4/0x2b0 [ 29.563635] fixup_bug.part.10+0x37/0x80 [ 29.567666] do_error_trap+0x2d7/0x3e0 [ 29.571524] ? vprintk_default+0x28/0x30 [ 29.575554] ? math_error+0x400/0x400 [ 29.579324] ? printk+0xaa/0xca [ 29.582573] ? show_regs_print_info+0x18/0x18 [ 29.587043] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.591857] do_invalid_op+0x1b/0x20 [ 29.595539] invalid_op+0x1b/0x40 [ 29.598959] RIP: 0010:add_uevent_var+0x2aa/0x2d0 [ 29.603680] RSP: 0018:ffff8801b4fae7c0 EFLAGS: 00010286 [ 29.609014] RAX: dffffc0000000008 RBX: ffff8801b4068d00 RCX: ffffffff815b193e [ 29.616254] RDX: 0000000000000000 RSI: 1ffff100369f5ca8 RDI: 1ffff100369f5c7d [ 29.623495] RBP: ffff8801b4fae888 R08: 1ffff100369f5c3f R09: 0000000000000000 [ 29.630738] R10: 0000000000000002 R11: 0000000000000000 R12: 1ffff100369f5cf9 [ 29.637977] R13: ffff8801b4068e18 R14: 00000000000003e6 R15: 0000000000000438 [ 29.645224] ? vprintk_func+0x5e/0xc0 [ 29.648998] ? kobj_bcast_filter+0x1c0/0x1c0 [ 29.653378] ? string+0x180/0x200 [ 29.656804] ? rfkill_dev_uevent+0x1a/0x170 [ 29.661097] rfkill_dev_uevent+0x31/0x170 [ 29.665218] dev_uevent+0x2b6/0x7e0 [ 29.668813] ? rfkill_resume_polling+0x160/0x160 [ 29.673541] ? device_get_devnode+0x2e0/0x2e0 [ 29.678010] ? add_uevent_var+0x202/0x2d0 [ 29.682135] ? kobj_bcast_filter+0x1c0/0x1c0 [ 29.686509] ? kobject_uevent_env+0x1ed/0xd30 [ 29.690975] ? kobject_get_path+0xb9/0x190 [ 29.695178] ? kobject_uevent_env+0x2d0/0xd30 [ 29.699646] ? device_get_devnode+0x2e0/0x2e0 [ 29.704110] kobject_uevent_env+0x3fe/0xd30 [ 29.708400] ? mutex_unlock+0xd/0x10 [ 29.712082] ? device_pm_add+0x23e/0x310 [ 29.716115] kobject_uevent+0x1f/0x30 [ 29.719886] device_add+0xd04/0x1650 [ 29.723574] ? device_private_init+0x230/0x230 [ 29.728127] ? rfkill_register+0xe8/0xd60 [ 29.732246] rfkill_register+0x254/0xd60 [ 29.736280] ? rfkill_fop_write+0x610/0x610 [ 29.740573] ? kfree_skb+0x16a/0x4c0 [ 29.744260] ? nl80211_notify_wiphy+0x234/0x2a0 [ 29.748897] ? __kfree_skb+0x20/0x20 [ 29.752583] ? mntput_no_expire+0x15e/0xa90 [ 29.756879] ? lookup_one_len+0x33e/0x4c0 [ 29.760999] ? do_raw_spin_trylock+0x190/0x190 [ 29.765554] ? nl80211_set_coalesce+0x2620/0x2620 [ 29.770372] wiphy_register+0x19d1/0x2050 [ 29.774498] ? wiphy_unregister+0x1120/0x1120 [ 29.778969] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.783957] ? __kmalloc+0x46e/0x760 [ 29.787639] ? find_held_lock+0x35/0x1d0 [ 29.791673] ? ieee80211_cs_list_valid+0x2f3/0x3c0 [ 29.796572] ieee80211_register_hw+0x1162/0x3100 [ 29.801298] ? ieee80211_register_hw+0x1162/0x3100 [ 29.807851] ? ieee80211_ifa6_changed+0x9c0/0x9c0 [ 29.812672] mac80211_hwsim_new_radio+0x1d06/0x2fb0 [ 29.817659] ? widen_string+0xa1/0x1e0 [ 29.821522] ? __rhashtable_insert_fast.constprop.52+0xc10/0xc10 [ 29.827638] ? pointer+0x9c0/0x9c0 [ 29.831156] ? rcu_note_context_switch+0x710/0x710 [ 29.836055] ? kasprintf+0xb3/0xe0 [ 29.839566] ? kvasprintf+0xd5/0x130 [ 29.843250] ? genl_rcv_msg+0x115/0x140 [ 29.847197] ? kasprintf+0xb3/0xe0 [ 29.850708] ? kvasprintf_const+0x160/0x160 [ 29.855004] ? trace_hardirqs_off+0x10/0x10 [ 29.859302] hwsim_new_radio_nl+0x67a/0x8c0 [ 29.863596] ? mac80211_hwsim_new_radio+0x2fb0/0x2fb0 [ 29.868756] ? __netlink_ns_capable+0xe1/0x120 [ 29.873309] genl_family_rcv_msg+0x7b7/0xfb0 [ 29.877689] ? genl_rcv+0x40/0x40 [ 29.881110] ? lock_downgrade+0x980/0x980 [ 29.885230] ? __lock_is_held+0xb6/0x140 [ 29.889267] genl_rcv_msg+0xb2/0x140 [ 29.892952] netlink_rcv_skb+0x14b/0x380 [ 29.896981] ? genl_family_rcv_msg+0xfb0/0xfb0 [ 29.901535] ? netlink_ack+0xa10/0xa10 [ 29.905399] ? genl_rcv+0x19/0x40 [ 29.908826] ? netlink_skb_destructor+0x1d0/0x1d0 [ 29.913635] ? copyin+0x91/0xb0 [ 29.916883] genl_rcv+0x28/0x40 [ 29.920134] netlink_unicast+0x4c4/0x6b0 [ 29.924167] ? netlink_attachskb+0x8a0/0x8a0 [ 29.928548] ? security_netlink_send+0x81/0xb0 [ 29.933101] netlink_sendmsg+0xa4a/0xe60 [ 29.937132] ? netlink_unicast+0x6b0/0x6b0 [ 29.941337] ? compat_mc_getsockopt+0x8e0/0x8e0 [ 29.945973] ? security_socket_sendmsg+0x89/0xb0 [ 29.950695] ? netlink_unicast+0x6b0/0x6b0 [ 29.954901] sock_sendmsg+0xca/0x110 [ 29.958584] ___sys_sendmsg+0x767/0x8b0 [ 29.962527] ? copy_msghdr_from_user+0x590/0x590 [ 29.967352] ? _raw_spin_unlock+0x22/0x30 [ 29.971478] ? __handle_mm_fault+0x5ba/0x38c0 [ 29.975944] ? __pmd_alloc+0x4e0/0x4e0 [ 29.979799] ? trace_hardirqs_off+0x10/0x10 [ 29.984090] ? __fget_light+0x2b2/0x3c0 [ 29.988034] ? fget_raw+0x20/0x20 [ 29.991459] ? find_held_lock+0x35/0x1d0 [ 29.995494] __sys_sendmsg+0xe5/0x210 [ 29.999269] ? __sys_sendmsg+0xe5/0x210 [ 30.003213] ? SyS_shutdown+0x290/0x290 [ 30.007159] ? compat_SyS_futex+0x288/0x380 [ 30.011454] compat_SyS_sendmsg+0x2a/0x40 [ 30.015569] ? compat_SyS_getsockopt+0x420/0x420 [ 30.020292] do_fast_syscall_32+0x3ec/0xf9f [ 30.024586] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.029135] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.034640] ? syscall_return_slowpath+0x2ac/0x550 [ 30.039538] ? sysret32_from_system_call+0x5/0x3c [ 30.044351] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.049162] entry_SYSENTER_compat+0x70/0x7f [ 30.053539] RIP: 0023:0xf7ffbc99 [ 30.056870] RSP: 002b:00000000ff859fbc EFLAGS: 00000286 ORIG_RAX: 0000000000000172 [ 30.064548] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020b3dfc8 [ 30.071785] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 30.079024] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.086261] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.093498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.101232] Dumping ftrace buffer: [ 30.104827] (ftrace buffer empty) [ 30.108508] Kernel Offset: disabled [ 30.112110] Rebooting in 86400 seconds..