[....] Starting enhanced syslogd: rsyslogd[ 16.904166] audit: type=1400 audit(1517711810.501:5): avc: denied { syslog } for pid=4025 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: [ 23.260035] audit: type=1400 audit(1517711816.857:6): avc: denied { map } for pid=4165 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 '10.128.0.59' (ECDSA) to the list of known hosts. executing program [ 29.563462] audit: type=1400 audit(1517711823.161:7): avc: denied { map } for pid=4179 comm="syzkaller482958" path="/root/syzkaller482958662" 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 [ 29.573504] IPVS: ftp: loaded support on port[0] = 21 executing program [ 29.616289] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 29.616850] IPVS: ftp: loaded support on port[0] = 21 [ 29.625884] x_tables: ip_tables: osf match: only valid for protocol 6 [ 29.650346] x_tables: ip_tables: osf match: only valid for protocol 6 [ 29.651781] IPVS: ftp: loaded support on port[0] = 21 executing program [ 29.657163] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 29.672398] x_tables: ip_tables: osf match: only valid for protocol 6 [ 29.679281] ------------[ cut here ]------------ [ 29.684120] proc_dir_entry 'ipt_CLUSTERIP/172.20.0.170' already registered [ 29.691190] WARNING: CPU: 1 PID: 4199 at fs/proc/generic.c:330 proc_register+0x2a4/0x370 [ 29.699389] Kernel panic - not syncing: panic_on_warn set ... [ 29.699389] [ 29.706721] CPU: 1 PID: 4199 Comm: syzkaller482958 Not tainted 4.15.0+ #221 [ 29.713789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.723117] Call Trace: [ 29.725680] dump_stack+0x194/0x257 [ 29.729282] ? arch_local_irq_restore+0x53/0x53 [ 29.733926] ? vsnprintf+0x1ed/0x1900 [ 29.737704] panic+0x1e4/0x41c [ 29.740869] ? refcount_error_report+0x214/0x214 [ 29.745600] ? show_regs_print_info+0x18/0x18 [ 29.750073] ? __warn+0x1c1/0x200 [ 29.753503] ? proc_register+0x2a4/0x370 [ 29.757534] __warn+0x1dc/0x200 [ 29.760786] ? proc_register+0x2a4/0x370 [ 29.764818] report_bug+0x211/0x2d0 [ 29.768423] fixup_bug.part.11+0x37/0x80 [ 29.772457] do_error_trap+0x2d7/0x3e0 [ 29.776320] ? vprintk_default+0x28/0x30 [ 29.780366] ? math_error+0x400/0x400 [ 29.784139] ? printk+0xaa/0xca [ 29.787392] ? show_regs_print_info+0x18/0x18 [ 29.791869] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.796688] do_invalid_op+0x1b/0x20 [ 29.800459] invalid_op+0x22/0x40 [ 29.803883] RIP: 0010:proc_register+0x2a4/0x370 [ 29.808519] RSP: 0018:ffff8801b03c6e20 EFLAGS: 00010286 [ 29.813854] RAX: dffffc0000000008 RBX: ffff8801b2331bf8 RCX: ffffffff815a57ae [ 29.821097] RDX: 0000000000000000 RSI: 1ffff10036078d74 RDI: 1ffff10036078d49 [ 29.828338] RBP: ffff8801b03c6e70 R08: 1ffff10036078d0b R09: 0000000000000000 [ 29.835580] R10: ffff8801b03c6cd8 R11: 0000000000000000 R12: ffff8801d9bf1300 [ 29.842821] R13: dffffc0000000000 R14: ffff8801cf491208 R15: ffff8801d9bf13c1 [ 29.850074] ? vprintk_func+0x5e/0xc0 [ 29.853861] proc_create_data+0xf8/0x180 [ 29.857902] clusterip_tg_check+0xf9c/0x16d0 [ 29.862288] ? arp_mangle+0x550/0x550 [ 29.866060] ? xt_find_target+0x150/0x1e0 [ 29.870182] ? lock_downgrade+0x980/0x980 [ 29.874305] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.879294] ? pcpu_alloc+0x146/0x10e0 [ 29.883163] ? pcpu_free_area+0xa00/0xa00 [ 29.887285] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 29.892098] ? kernel_text_address+0x102/0x140 [ 29.897300] ? wait_for_completion+0x770/0x770 [ 29.901859] ? unwind_get_return_address+0x61/0xa0 [ 29.906761] ? __save_stack_trace+0x7e/0xd0 [ 29.911058] ? arp_mangle+0x550/0x550 [ 29.914832] xt_check_target+0x22c/0x7d0 [ 29.918868] ? xt_target_seq_next+0x30/0x30 [ 29.923162] ? save_stack+0xa3/0xd0 [ 29.926760] ? save_stack+0x43/0xd0 [ 29.930357] ? kasan_slab_free+0x71/0xc0 [ 29.934386] ? kfree+0xd6/0x260 [ 29.937643] ? mutex_unlock+0xd/0x10 [ 29.941327] ? xt_find_target+0x17b/0x1e0 [ 29.945457] find_check_entry.isra.8+0x8c8/0xcb0 [ 29.950210] ? ipt_do_table+0x1950/0x1950 [ 29.954336] ? trace_hardirqs_off+0xd/0x10 [ 29.958544] ? quarantine_put+0xeb/0x190 [ 29.962576] ? kfree+0xf0/0x260 [ 29.965833] ? trace_hardirqs_on+0xd/0x10 [ 29.969960] translate_table+0xed1/0x1610 [ 29.974102] ? alloc_counters.isra.11+0x7d0/0x7d0 [ 29.978925] ? kasan_check_write+0x14/0x20 [ 29.983130] ? _copy_from_user+0x99/0x110 [ 29.987263] do_ipt_set_ctl+0x370/0x5f0 [ 29.991213] ? translate_compat_table+0x1b90/0x1b90 [ 29.996216] ? mutex_unlock+0xd/0x10 [ 29.999910] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 30.005163] nf_setsockopt+0x67/0xc0 [ 30.008851] ip_setsockopt+0x97/0xa0 [ 30.012540] sctp_setsockopt+0x2b6/0x61d0 [ 30.016663] ? sctp_setsockopt_paddr_thresholds+0x550/0x550 [ 30.022347] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.027516] ? lru_cache_add+0x1c7/0x3a0 [ 30.031546] ? mem_cgroup_css_offline+0x510/0x510 [ 30.036365] ? check_noncircular+0x20/0x20 [ 30.040571] ? __mem_cgroup_threshold+0x8f0/0x8f0 [ 30.045391] ? mark_held_locks+0xaf/0x100 [ 30.049526] ? find_held_lock+0x35/0x1d0 [ 30.053576] ? check_noncircular+0x20/0x20 [ 30.057788] ? lock_downgrade+0x980/0x980 [ 30.061907] ? check_noncircular+0x20/0x20 [ 30.066113] ? lock_release+0xa40/0xa40 [ 30.070084] ? find_held_lock+0x35/0x1d0 [ 30.074133] ? avc_has_perm+0x35e/0x680 [ 30.078102] ? lock_downgrade+0x980/0x980 [ 30.082225] ? lock_release+0xa40/0xa40 [ 30.086171] ? lock_downgrade+0x980/0x980 [ 30.090288] ? __pmd_alloc+0x4e0/0x4e0 [ 30.094148] ? lock_release+0xa40/0xa40 [ 30.098100] ? __lock_is_held+0xb6/0x140 [ 30.102139] ? avc_has_perm+0x43e/0x680 [ 30.106091] ? avc_has_perm_noaudit+0x520/0x520 [ 30.110744] ? iterate_fd+0x3f0/0x3f0 [ 30.114517] ? lock_downgrade+0x980/0x980 [ 30.118644] ? handle_mm_fault+0x476/0x930 [ 30.122850] ? down_read_trylock+0xdb/0x170 [ 30.127149] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 30.131702] ? vmacache_find+0x5f/0x280 [ 30.135652] ? sock_has_perm+0x2a4/0x420 [ 30.139688] ? selinux_secmark_relabel_packet+0xc0/0xc0 [ 30.145033] ? __do_page_fault+0x3d6/0xc90 [ 30.149240] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 30.154928] ? selinux_netlbl_sock_rcv_skb+0x730/0x730 [ 30.160208] sock_common_setsockopt+0x95/0xd0 [ 30.164680] SyS_setsockopt+0x189/0x360 [ 30.168631] ? SyS_recv+0x40/0x40 [ 30.172233] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 30.177049] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.182039] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.186772] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 30.191502] RIP: 0033:0x446ba9 [ 30.194664] RSP: 002b:00007f29a0d86db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 30.202344] RAX: ffffffffffffffda RBX: 00000000006dcc54 RCX: 0000000000446ba9 [ 30.209592] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 30.216834] RBP: 00000000006dcc50 R08: 0000000000000348 R09: 0000000000000000 [ 30.224075] R10: 0000000020013c90 R11: 0000000000000246 R12: 0000000000000000 [ 30.231319] R13: 00007ffe694a076f R14: 00007f29a0d879c0 R15: 0000000000000003 [ 30.239046] Dumping ftrace buffer: [ 30.242649] (ftrace buffer empty) [ 30.246332] Kernel Offset: disabled [ 30.249934] Rebooting in 86400 seconds..