[....] Starting enhanced syslogd: rsyslogd[ 15.004237] audit: type=1400 audit(1518358558.558:5): avc: denied { syslog } for pid=3974 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: [ 19.490799] audit: type=1400 audit(1518358563.044:6): avc: denied { map } for pid=4113 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 '10.128.0.17' (ECDSA) to the list of known hosts. [ 25.786775] audit: type=1400 audit(1518358569.340:7): avc: denied { map } for pid=4127 comm="syzkaller431707" path="/root/syzkaller431707946" 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.syz5.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz0.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 [ 27.599892] 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: Operation not supported 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: 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: 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 [ 29.627172] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 29.628985] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 29.644264] Cannot find add_set index 0 as target [ 29.664064] Cannot find add_set index 0 as target [ 29.668507] Cannot find add_set index 0 as target [ 29.680636] ------------[ cut here ]------------ [ 29.685566] proc_dir_entry 'ipt_CLUSTERIP/172.20.5.170' already registered [ 29.692655] WARNING: CPU: 0 PID: 5224 at fs/proc/generic.c:330 proc_register+0x2d6/0x3b0 [ 29.700856] Kernel panic - not syncing: panic_on_warn set ... [ 29.700856] [ 29.708190] CPU: 0 PID: 5224 Comm: syzkaller431707 Not tainted 4.15.0+ #308 [ 29.715262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.724590] Call Trace: [ 29.727155] dump_stack+0x194/0x257 [ 29.730765] ? arch_local_irq_restore+0x53/0x53 [ 29.735413] ? vsnprintf+0x1ed/0x1900 [ 29.739193] panic+0x1e4/0x41c [ 29.742370] ? refcount_error_report+0x214/0x214 [ 29.747100] ? show_regs_print_info+0x18/0x18 [ 29.751576] ? __warn+0x1c1/0x200 [ 29.755013] ? proc_register+0x2d6/0x3b0 [ 29.759053] __warn+0x1dc/0x200 [ 29.762309] ? proc_register+0x2d6/0x3b0 [ 29.766349] report_bug+0x211/0x2d0 [ 29.769955] fixup_bug.part.11+0x37/0x80 [ 29.773990] do_error_trap+0x2d7/0x3e0 [ 29.777852] ? vprintk_default+0x28/0x30 [ 29.781890] ? math_error+0x400/0x400 [ 29.785664] ? printk+0xaa/0xca [ 29.788917] ? show_regs_print_info+0x18/0x18 [ 29.793401] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.798225] do_invalid_op+0x1b/0x20 [ 29.801913] invalid_op+0x22/0x40 [ 29.805344] RIP: 0010:proc_register+0x2d6/0x3b0 [ 29.809983] RSP: 0018:ffff8801ccdaf3d8 EFLAGS: 00010286 [ 29.815322] RAX: dffffc0000000008 RBX: ffff8801d222fd50 RCX: ffffffff815aaf3e [ 29.822565] RDX: 0000000000000000 RSI: 1ffff100399b5e2b RDI: 1ffff100399b5e00 [ 29.829983] RBP: ffff8801ccdaf430 R08: 1ffff100399b5dc2 R09: 0000000000000000 [ 29.837229] R10: ffff8801ccdaf290 R11: 0000000000000000 R12: ffff8801b93d8a40 [ 29.844474] R13: dffffc0000000000 R14: ffff8801d2a844a0 R15: ffff8801b93d8afb [ 29.851733] ? vprintk_func+0x5e/0xc0 [ 29.855515] ? proc_register+0x2d6/0x3b0 [ 29.859560] proc_create_data+0xf8/0x180 [ 29.863603] clusterip_tg_check+0xf9c/0x16d0 [ 29.867997] ? arp_mangle+0x550/0x550 [ 29.871783] ? xt_find_target+0x150/0x1e0 [ 29.875905] ? lock_downgrade+0x980/0x980 [ 29.880034] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.885029] ? pcpu_alloc+0x146/0x10e0 [ 29.888903] ? pcpu_free_area+0xa00/0xa00 [ 29.893033] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 29.897853] ? wait_for_completion+0x770/0x770 [ 29.902418] ? arp_mangle+0x550/0x550 [ 29.906197] xt_check_target+0x22c/0x7d0 [ 29.910238] ? xt_target_seq_next+0x30/0x30 [ 29.914534] ? save_stack+0x43/0xd0 [ 29.918136] ? kfree+0xd9/0x260 [ 29.921389] ? kvfree+0x36/0x60 [ 29.924641] ? translate_table+0xdd2/0x1610 [ 29.928943] ? mutex_unlock+0xd/0x10 [ 29.932630] ? xt_find_target+0x17b/0x1e0 [ 29.936765] find_check_entry.isra.8+0x8c8/0xcb0 [ 29.941511] ? ipt_do_table+0x1950/0x1950 [ 29.945640] ? kfree+0xf3/0x260 [ 29.948899] ? trace_hardirqs_on+0xd/0x10 [ 29.953032] translate_table+0xed1/0x1610 [ 29.957178] ? alloc_counters.isra.11+0x7d0/0x7d0 [ 29.961999] ? kasan_check_write+0x14/0x20 [ 29.966212] ? _copy_from_user+0x99/0x110 [ 29.970339] do_ipt_set_ctl+0x370/0x5f0 [ 29.974293] ? translate_compat_table+0x1b90/0x1b90 [ 29.979299] ? mutex_unlock+0xd/0x10 [ 29.982988] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 29.988243] nf_setsockopt+0x67/0xc0 [ 29.991934] ip_setsockopt+0x97/0xa0 [ 29.995626] udp_setsockopt+0x45/0x80 [ 29.999403] sock_common_setsockopt+0x95/0xd0 [ 30.003878] SyS_setsockopt+0x189/0x360 [ 30.007831] ? SyS_recv+0x40/0x40 [ 30.011259] ? mm_fault_error+0x2c0/0x2c0 [ 30.015386] ? do_raw_spin_trylock+0x190/0x190 [ 30.019946] ? do_syscall_64+0xb7/0x940 [ 30.023898] ? SyS_recv+0x40/0x40 [ 30.027327] do_syscall_64+0x282/0x940 [ 30.031186] ? __do_page_fault+0xc90/0xc90 [ 30.035391] ? mmdrop+0x18/0x30 [ 30.038644] ? finish_task_switch+0x29b/0x890 [ 30.043125] ? syscall_return_slowpath+0x550/0x550 [ 30.048034] ? syscall_return_slowpath+0x2ac/0x550 [ 30.052942] ? prepare_exit_to_usermode+0x350/0x350 [ 30.057933] ? retint_user+0x18/0x18 [ 30.061626] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.066451] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 30.071616] RIP: 0033:0x44b899 [ 30.074781] RSP: 002b:00007f0113582d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000036 [ 30.082635] RAX: ffffffffffffffda RBX: 00000000006ddc50 RCX: 000000000044b899 [ 30.089879] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 30.097129] RBP: 00000000006ddc54 R08: 0000000000000360 R09: 0000000000000000 [ 30.104374] R10: 0000000020664ca0 R11: 0000000000000206 R12: 0000000000000000 [ 30.111617] R13: 00007ffe87a15f8f R14: 00007f01135839c0 R15: 0000000000000005 [ 30.119496] Dumping ftrace buffer: [ 30.123100] (ftrace buffer empty) [ 30.126784] Kernel Offset: disabled [ 30.130383] Rebooting in 86400 seconds..