[....] Starting enhanced syslogd: rsyslogd[ 15.353253] audit: type=1400 audit(1518208150.848:5): avc: denied { syslog } for pid=4007 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.931456] audit: type=1400 audit(1518208154.427:6): avc: denied { map } for pid=4147 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.21' (ECDSA) to the list of known hosts. net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 [ 37.446512] audit: type=1400 audit(1518208172.942:7): avc: denied { map } for pid=4164 comm="syzkaller040531" path="/root/syzkaller040531957" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available [ 38.592498] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument executing program executing program executing program executing program [ 40.071685] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 40.072305] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 40.093859] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.097685] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.108506] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' executing program executing program executing program executing program [ 40.122092] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.124407] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.134981] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.145524] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.147777] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.159546] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' executing program executing program executing program executing program executing program [ 40.159926] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.168293] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.178619] ipt_CLUSTERIP: no config found for 172.20.0.170, need 'new' [ 40.187766] ------------[ cut here ]------------ [ 40.192727] proc_dir_entry 'ipt_CLUSTERIP/255.255.255.255' already registered [ 40.200148] WARNING: CPU: 0 PID: 5274 at fs/proc/generic.c:330 proc_register+0x2d6/0x3b0 [ 40.208363] Kernel panic - not syncing: panic_on_warn set ... [ 40.208363] [ 40.215700] CPU: 0 PID: 5274 Comm: syzkaller040531 Not tainted 4.15.0+ #306 [ 40.222770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.232098] Call Trace: [ 40.234660] dump_stack+0x194/0x257 [ 40.238267] ? arch_local_irq_restore+0x53/0x53 [ 40.242916] ? vsnprintf+0x1ed/0x1900 [ 40.246695] panic+0x1e4/0x41c [ 40.249861] ? refcount_error_report+0x214/0x214 [ 40.254588] ? show_regs_print_info+0x18/0x18 [ 40.259066] ? __warn+0x1c1/0x200 [ 40.262502] ? proc_register+0x2d6/0x3b0 [ 40.266533] __warn+0x1dc/0x200 [ 40.269786] ? proc_register+0x2d6/0x3b0 [ 40.273826] report_bug+0x211/0x2d0 [ 40.277434] fixup_bug.part.11+0x37/0x80 [ 40.281470] do_error_trap+0x2d7/0x3e0 [ 40.285331] ? vprintk_default+0x28/0x30 [ 40.289368] ? math_error+0x400/0x400 [ 40.293148] ? printk+0xaa/0xca [ 40.296404] ? show_regs_print_info+0x18/0x18 [ 40.300883] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.305704] do_invalid_op+0x1b/0x20 [ 40.309392] invalid_op+0x22/0x40 [ 40.312817] RIP: 0010:proc_register+0x2d6/0x3b0 [ 40.317457] RSP: 0018:ffff8801cbc5f3d8 EFLAGS: 00010286 [ 40.322794] RAX: dffffc0000000008 RBX: ffff8801d21abad0 RCX: ffffffff815a5c5e [ 40.330040] RDX: 0000000000000000 RSI: 1ffff1003978be2b RDI: 1ffff1003978be00 [ 40.337285] RBP: ffff8801cbc5f430 R08: 1ffff1003978bdc2 R09: 0000000000000000 [ 40.344528] R10: ffff8801cbc5f290 R11: 0000000000000000 R12: ffff8801b27ceac0 [ 40.351770] R13: dffffc0000000000 R14: ffff8801b22ffae0 R15: ffff8801b27ceb7b [ 40.359030] ? vprintk_func+0x5e/0xc0 [ 40.362814] ? proc_register+0x2d6/0x3b0 [ 40.366859] proc_create_data+0xf8/0x180 [ 40.370901] clusterip_tg_check+0xf9c/0x16d0 [ 40.375290] ? arp_mangle+0x550/0x550 [ 40.379070] ? xt_find_target+0x150/0x1e0 [ 40.383195] ? lock_downgrade+0x980/0x980 [ 40.387318] ? rcu_read_lock_sched_held+0x108/0x120 [ 40.392310] ? pcpu_alloc+0x146/0x10e0 [ 40.396185] ? pcpu_free_area+0xa00/0xa00 [ 40.400310] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 40.405131] ? wait_for_completion+0x770/0x770 [ 40.409695] ? arp_mangle+0x550/0x550 [ 40.413472] xt_check_target+0x22c/0x7d0 [ 40.417512] ? xt_target_seq_next+0x30/0x30 [ 40.421809] ? save_stack+0x43/0xd0 [ 40.425412] ? kfree+0xd9/0x260 [ 40.428662] ? kvfree+0x36/0x60 [ 40.431914] ? translate_table+0xdd2/0x1610 [ 40.436216] ? mutex_unlock+0xd/0x10 [ 40.439905] ? xt_find_target+0x17b/0x1e0 [ 40.444040] find_check_entry.isra.8+0x8c8/0xcb0 [ 40.448787] ? ipt_do_table+0x1950/0x1950 [ 40.452911] ? trace_hardirqs_off+0xd/0x10 [ 40.457123] ? kfree+0xf3/0x260 [ 40.460381] ? trace_hardirqs_on+0xd/0x10 [ 40.464514] translate_table+0xed1/0x1610 [ 40.468658] ? alloc_counters.isra.11+0x7d0/0x7d0 [ 40.473478] ? kasan_check_write+0x14/0x20 [ 40.477689] ? _copy_from_user+0x99/0x110 [ 40.481814] do_ipt_set_ctl+0x370/0x5f0 [ 40.485768] ? translate_compat_table+0x1b90/0x1b90 [ 40.490774] ? mutex_unlock+0xd/0x10 [ 40.494463] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 40.499719] nf_setsockopt+0x67/0xc0 [ 40.503412] ip_setsockopt+0x97/0xa0 [ 40.507105] raw_setsockopt+0xb7/0xd0 [ 40.510887] sock_common_setsockopt+0x95/0xd0 [ 40.515362] SyS_setsockopt+0x189/0x360 [ 40.519313] ? SyS_recv+0x40/0x40 [ 40.522744] ? mm_fault_error+0x2c0/0x2c0 [ 40.526867] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 40.532377] ? do_raw_spin_trylock+0x190/0x190 [ 40.536934] ? do_syscall_64+0xb7/0x940 [ 40.540886] ? SyS_recv+0x40/0x40 [ 40.544314] do_syscall_64+0x282/0x940 [ 40.548175] ? __do_page_fault+0xc90/0xc90 [ 40.552384] ? finish_task_switch+0x1e2/0x890 [ 40.556849] ? finish_task_switch+0x1b9/0x890 [ 40.561322] ? syscall_return_slowpath+0x550/0x550 [ 40.566227] ? syscall_return_slowpath+0x2ac/0x550 [ 40.571130] ? prepare_exit_to_usermode+0x350/0x350 [ 40.576131] ? retint_user+0x18/0x18 [ 40.579833] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.584661] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 40.589824] RIP: 0033:0x44b669 [ 40.592986] RSP: 002b:00007f9302961d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000036 [ 40.600670] RAX: ffffffffffffffda RBX: 00000000006ddc6c RCX: 000000000044b669 [ 40.607913] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000006 [ 40.615155] RBP: 00000000006ddc68 R08: 0000000000000368 R09: 0000000000000000 [ 40.622396] R10: 00000000204a0c98 R11: 0000000000000206 R12: 70ae65c7973ea668 [ 40.629637] R13: 93cc766fe0a7b98d R14: 00007f93029629c0 R15: 0000000000000004 [ 40.637607] Dumping ftrace buffer: [ 40.641226] (ftrace buffer empty) [ 40.644912] Kernel Offset: disabled [ 40.648512] Rebooting in 86400 seconds..