[....] 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. [ 18.078305] audit: type=1400 audit(1518271366.868:6): avc: denied { map } for pid=4143 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 [ 18.109539] sshd (4118) used greatest stack depth: 16896 bytes left Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.5' (ECDSA) to the list of known hosts. syzkaller login: [ 24.388131] audit: type=1400 audit(1518271373.178:7): avc: denied { map } for pid=4157 comm="syzkaller931218" path="/root/syzkaller931218392" 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.syz7.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 [ 25.212857] ip (4327) used greatest stack depth: 16784 bytes left 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 [ 26.248338] 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: 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: 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: 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 [ 28.340977] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 28.344049] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 28.357523] ipt_CLUSTERIP: Please specify destination IP [ 28.374152] ipt_CLUSTERIP: Please specify destination IP executing program executing program executing program executing program executing program executing program [ 28.388867] ipt_CLUSTERIP: Please specify destination IP [ 28.390051] ipt_CLUSTERIP: Please specify destination IP [ 28.394412] ipt_CLUSTERIP: Please specify destination IP [ 28.400617] ipt_CLUSTERIP: Please specify destination IP [ 28.415637] ipt_CLUSTERIP: Please specify destination IP [ 28.419085] ipt_CLUSTERIP: Please specify destination IP [ 28.429111] ------------[ cut here ]------------ [ 28.434104] proc_dir_entry 'ipt_CLUSTERIP/255.255.255.255' already registered executing program executing program executing program executing program executing program executing program [ 28.441750] WARNING: CPU: 0 PID: 5268 at fs/proc/generic.c:330 proc_register+0x2a4/0x370 [ 28.449970] Kernel panic - not syncing: panic_on_warn set ... [ 28.449970] [ 28.457326] CPU: 0 PID: 5268 Comm: syzkaller931218 Not tainted 4.15.0+ #221 [ 28.464414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.473762] Call Trace: [ 28.476349] dump_stack+0x194/0x257 [ 28.479983] ? arch_local_irq_restore+0x53/0x53 [ 28.484650] ? vsnprintf+0x1ed/0x1900 [ 28.488457] panic+0x1e4/0x41c [ 28.491643] ? refcount_error_report+0x214/0x214 [ 28.496389] ? show_regs_print_info+0x18/0x18 [ 28.500892] ? __warn+0x1c1/0x200 [ 28.504343] ? proc_register+0x2a4/0x370 [ 28.508396] __warn+0x1dc/0x200 [ 28.511678] ? proc_register+0x2a4/0x370 [ 28.515745] report_bug+0x211/0x2d0 [ 28.519377] fixup_bug.part.11+0x37/0x80 [ 28.523432] do_error_trap+0x2d7/0x3e0 [ 28.527294] ? vprintk_default+0x28/0x30 [ 28.531332] ? math_error+0x400/0x400 [ 28.535108] ? printk+0xaa/0xca [ 28.538371] ? show_regs_print_info+0x18/0x18 [ 28.542847] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.547669] do_invalid_op+0x1b/0x20 [ 28.551880] invalid_op+0x22/0x40 [ 28.555308] RIP: 0010:proc_register+0x2a4/0x370 [ 28.559944] RSP: 0018:ffff8801cd137528 EFLAGS: 00010286 [ 28.565279] RAX: dffffc0000000008 RBX: ffff8801d21d4178 RCX: ffffffff815a57ae [ 28.572522] RDX: 0000000000000000 RSI: 1ffff10039a26e55 RDI: 1ffff10039a26e2a [ 28.579766] RBP: ffff8801cd137578 R08: 1ffff10039a26dec R09: 0000000000000000 [ 28.587012] R10: ffff8801cd1373e0 R11: 0000000000000000 R12: ffff8801b3907480 [ 28.594256] R13: dffffc0000000000 R14: ffff8801cfba8188 R15: ffff8801b3907541 [ 28.601510] ? vprintk_func+0x5e/0xc0 [ 28.605289] ? proc_register+0x2a4/0x370 [ 28.609330] proc_create_data+0xf8/0x180 [ 28.613370] clusterip_tg_check+0xf9c/0x16d0 [ 28.617760] ? arp_mangle+0x550/0x550 [ 28.621537] ? xt_find_target+0x150/0x1e0 [ 28.625661] ? lock_downgrade+0x980/0x980 [ 28.629784] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.634775] ? pcpu_alloc+0x146/0x10e0 [ 28.638648] ? pcpu_free_area+0xa00/0xa00 [ 28.642776] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 28.647589] ? kernel_text_address+0x102/0x140 [ 28.652148] ? wait_for_completion+0x770/0x770 [ 28.656707] ? unwind_get_return_address+0x61/0xa0 [ 28.661610] ? __save_stack_trace+0x7e/0xd0 [ 28.665907] ? arp_mangle+0x550/0x550 [ 28.669687] xt_check_target+0x22c/0x7d0 [ 28.673727] ? xt_target_seq_next+0x30/0x30 [ 28.678026] ? save_stack+0xa3/0xd0 [ 28.681628] ? save_stack+0x43/0xd0 [ 28.685225] ? kasan_slab_free+0x71/0xc0 [ 28.689258] ? kfree+0xd6/0x260 [ 28.692507] ? kvfree+0x36/0x60 [ 28.695765] ? mutex_unlock+0xd/0x10 [ 28.699453] ? xt_find_target+0x17b/0x1e0 [ 28.703586] find_check_entry.isra.8+0x8c8/0xcb0 [ 28.708329] ? ipt_do_table+0x1950/0x1950 [ 28.712454] ? trace_hardirqs_off+0xd/0x10 [ 28.716660] ? quarantine_put+0xeb/0x190 [ 28.720692] ? kfree+0xf0/0x260 [ 28.723952] ? trace_hardirqs_on+0xd/0x10 [ 28.728080] translate_table+0xed1/0x1610 [ 28.732222] ? alloc_counters.isra.11+0x7d0/0x7d0 [ 28.737041] ? kasan_check_write+0x14/0x20 [ 28.741248] ? _copy_from_user+0x99/0x110 [ 28.745372] do_ipt_set_ctl+0x370/0x5f0 [ 28.749320] ? handle_mm_fault+0x476/0x930 [ 28.753530] ? translate_compat_table+0x1b90/0x1b90 [ 28.758516] ? vmacache_find+0x5f/0x280 [ 28.762478] ? mutex_unlock+0xd/0x10 [ 28.766163] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 28.771416] nf_setsockopt+0x67/0xc0 [ 28.775108] ip_setsockopt+0x97/0xa0 [ 28.778802] raw_setsockopt+0xb7/0xd0 [ 28.782580] sock_common_setsockopt+0x95/0xd0 [ 28.787054] SyS_setsockopt+0x189/0x360 [ 28.791010] ? SyS_recv+0x40/0x40 [ 28.794450] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 28.799275] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.804271] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.809025] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 28.813756] RIP: 0033:0x44b879 [ 28.816922] RSP: 002b:00007f41d368ad48 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 [ 28.824690] RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044b879 [ 28.831943] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 28.839190] RBP: 00000000006ddc3c R08: 0000000000000368 R09: 0000000000005a1e [ 28.846434] R10: 00000000204a0c98 R11: 0000000000000202 R12: 0000000000000000 [ 28.853678] R13: 00007fffa01886af R14: 00007f41d368b9c0 R15: 0000000000000004 [ 28.861516] Dumping ftrace buffer: [ 28.865130] (ftrace buffer empty) [ 28.868813] Kernel Offset: disabled [ 28.872412] Rebooting in 86400 seconds..