[....] Starting enhanced syslogd: rsyslogd[ 14.516129] audit: type=1400 audit(1518278107.706:5): avc: denied { syslog } for pid=3947 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: [ 19.142173] audit: type=1400 audit(1518278112.332:6): avc: denied { map } for pid=4088 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 '10.128.0.51' (ECDSA) to the list of known hosts. net.ipv6.conf.syz3.accept_dad = 0 [ 357.310526] audit: type=1400 audit(1518278450.501:7): avc: denied { map } for pid=4105 comm="syzkaller301455" path="/root/syzkaller301455054" 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.syz5.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz6.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 [ 358.569868] 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: Operation not supported 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: 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: 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 executing program executing program [ 360.274711] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 360.278116] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 360.303540] Cannot find add_set index 0 as target [ 360.309586] Cannot find add_set index 0 as target [ 360.314809] Cannot find add_set index 0 as target [ 360.315510] Cannot find add_set index 0 as target executing program [ 360.324797] Cannot find add_set index 0 as target [ 360.333669] Cannot find add_set index 0 as target [ 360.335502] Cannot find add_set index 0 as target [ 360.347923] ------------[ cut here ]------------ [ 360.352838] proc_dir_entry 'ipt_CLUSTERIP/172.20.2.170' already registered [ 360.360063] WARNING: CPU: 1 PID: 5214 at fs/proc/generic.c:330 proc_register+0x2a4/0x370 [ 360.368268] Kernel panic - not syncing: panic_on_warn set ... [ 360.368268] [ 360.375604] CPU: 1 PID: 5214 Comm: syzkaller301455 Not tainted 4.15.0+ #221 [ 360.382673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 360.392030] Call Trace: [ 360.394628] dump_stack+0x194/0x257 [ 360.398233] ? arch_local_irq_restore+0x53/0x53 [ 360.402881] ? vsnprintf+0x1ed/0x1900 [ 360.406692] panic+0x1e4/0x41c [ 360.409862] ? refcount_error_report+0x214/0x214 [ 360.414606] ? show_regs_print_info+0x18/0x18 [ 360.419084] ? __warn+0x1c1/0x200 [ 360.422518] ? proc_register+0x2a4/0x370 [ 360.426549] __warn+0x1dc/0x200 [ 360.429801] ? proc_register+0x2a4/0x370 [ 360.433838] report_bug+0x211/0x2d0 [ 360.437489] fixup_bug.part.11+0x37/0x80 [ 360.441526] do_error_trap+0x2d7/0x3e0 [ 360.445387] ? vprintk_default+0x28/0x30 [ 360.449426] ? math_error+0x400/0x400 [ 360.453288] ? printk+0xaa/0xca [ 360.456542] ? show_regs_print_info+0x18/0x18 [ 360.461063] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 360.465887] do_invalid_op+0x1b/0x20 [ 360.469589] invalid_op+0x22/0x40 [ 360.473022] RIP: 0010:proc_register+0x2a4/0x370 [ 360.477660] RSP: 0018:ffff8801bd7cf528 EFLAGS: 00010286 [ 360.482998] RAX: dffffc0000000008 RBX: ffff8801d21c7938 RCX: ffffffff815a57ae [ 360.490245] RDX: 0000000000000000 RSI: 1ffff10037af9e55 RDI: 1ffff10037af9e2a [ 360.497486] RBP: ffff8801bd7cf578 R08: 1ffff10037af9dec R09: 0000000000000000 [ 360.504730] R10: ffff8801bd7cf3e0 R11: 0000000000000000 R12: ffff8801be269540 [ 360.511977] R13: dffffc0000000000 R14: ffff8801b4f8b988 R15: ffff8801be269601 [ 360.519230] ? vprintk_func+0x5e/0xc0 [ 360.523012] ? proc_register+0x2a4/0x370 [ 360.527058] proc_create_data+0xf8/0x180 [ 360.531131] clusterip_tg_check+0xf9c/0x16d0 [ 360.535523] ? arp_mangle+0x550/0x550 [ 360.539326] ? xt_find_target+0x150/0x1e0 [ 360.543449] ? lock_downgrade+0x980/0x980 [ 360.547593] ? rcu_read_lock_sched_held+0x108/0x120 [ 360.552628] ? pcpu_alloc+0x146/0x10e0 [ 360.556501] ? pcpu_free_area+0xa00/0xa00 [ 360.560629] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 360.565463] ? kernel_text_address+0x102/0x140 [ 360.570027] ? wait_for_completion+0x770/0x770 [ 360.574613] ? unwind_get_return_address+0x61/0xa0 [ 360.579527] ? __save_stack_trace+0x7e/0xd0 [ 360.583824] ? arp_mangle+0x550/0x550 [ 360.587602] xt_check_target+0x22c/0x7d0 [ 360.591638] ? xt_target_seq_next+0x30/0x30 [ 360.595964] ? save_stack+0xa3/0xd0 [ 360.599567] ? save_stack+0x43/0xd0 [ 360.603165] ? kasan_slab_free+0x71/0xc0 [ 360.607197] ? kfree+0xd6/0x260 [ 360.610447] ? kvfree+0x36/0x60 [ 360.613710] ? mutex_unlock+0xd/0x10 [ 360.617395] ? xt_find_target+0x17b/0x1e0 [ 360.621536] find_check_entry.isra.8+0x8c8/0xcb0 [ 360.626279] ? ipt_do_table+0x1950/0x1950 [ 360.630405] ? trace_hardirqs_off+0xd/0x10 [ 360.634610] ? quarantine_put+0xeb/0x190 [ 360.638643] ? kfree+0xf0/0x260 [ 360.641901] ? trace_hardirqs_on+0xd/0x10 [ 360.646032] translate_table+0xed1/0x1610 [ 360.650175] ? alloc_counters.isra.11+0x7d0/0x7d0 [ 360.655601] ? kasan_check_write+0x14/0x20 [ 360.659848] ? _copy_from_user+0x99/0x110 [ 360.663979] do_ipt_set_ctl+0x370/0x5f0 [ 360.667949] ? handle_mm_fault+0x476/0x930 [ 360.672160] ? translate_compat_table+0x1b90/0x1b90 [ 360.677145] ? vmacache_find+0x5f/0x280 [ 360.681108] ? mutex_unlock+0xd/0x10 [ 360.684816] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 360.690071] nf_setsockopt+0x67/0xc0 [ 360.693781] ip_setsockopt+0x97/0xa0 [ 360.697481] udp_setsockopt+0x45/0x80 [ 360.701281] sock_common_setsockopt+0x95/0xd0 [ 360.705754] SyS_setsockopt+0x189/0x360 [ 360.709707] ? SyS_recv+0x40/0x40 [ 360.713135] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 360.717953] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 360.722943] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 360.727679] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 360.732409] RIP: 0033:0x44b899 [ 360.735572] RSP: 002b:00007ff2de5dbd48 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 [ 360.743253] RAX: ffffffffffffffda RBX: 00000000006ddc50 RCX: 000000000044b899 [ 360.750494] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 360.757737] RBP: 00000000006ddc54 R08: 0000000000000360 R09: 0000000000000000 [ 360.764979] R10: 0000000020664ca0 R11: 0000000000000202 R12: 0000000000000000 [ 360.772221] R13: 00007ffe05f9f15f R14: 00007ff2de5dc9c0 R15: 0000000000000005 [ 360.780114] Dumping ftrace buffer: [ 360.783750] (ftrace buffer empty) [ 360.787433] Kernel Offset: disabled [ 360.791033] Rebooting in 86400 seconds..