[....] Starting enhanced syslogd: rsyslogd[ 16.357164] audit: type=1400 audit(1518427385.794:5): avc: denied { syslog } for pid=4015 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: [ 22.129607] audit: type=1400 audit(1518427391.566:6): avc: denied { map } for pid=4156 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 '10.128.15.211' (ECDSA) to the list of known hosts. executing program [ 28.383926] audit: type=1400 audit(1518427397.820:7): avc: denied { map } for pid=4169 comm="syzkaller050828" path="/root/syzkaller050828853" 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 [ 28.409894] audit: type=1400 audit(1518427397.820:8): avc: denied { name_connect } for pid=4169 comm="syzkaller050828" dest=20002 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 28.410374] divide error: 0000 [#1] SMP KASAN [ 28.437187] Dumping ftrace buffer: [ 28.440712] (ftrace buffer empty) [ 28.444403] Modules linked in: [ 28.447569] CPU: 0 PID: 4169 Comm: syzkaller050828 Not tainted 4.15.0+ #222 [ 28.454634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.463964] RIP: 0010:nf_nat_l4proto_unique_tuple+0x291/0x530 [ 28.469814] RSP: 0018:ffff8801d40f6778 EFLAGS: 00010246 [ 28.475145] RAX: 00000000000087e7 RBX: ffff8801d40f6dd8 RCX: ffff8801d40f6c7c [ 28.482384] RDX: 0000000000000000 RSI: ffff8801d40f6c58 RDI: ffff8801db4293ac [ 28.489622] RBP: ffff8801d40f67d8 R08: ffff8801b20a1dc0 R09: ffffffff88af5880 [ 28.496862] R10: ffff8801d40f66f0 R11: 0000000000000000 R12: 00000000bff587e7 [ 28.504103] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801d40f6c7c [ 28.511346] FS: 0000000000cd6880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 28.519540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.525391] CR2: 00000000208fdfe4 CR3: 00000001b21c0005 CR4: 00000000001606f0 [ 28.532632] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.539870] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.547109] Call Trace: [ 28.549675] dccp_unique_tuple+0x40/0x50 [ 28.553707] get_unique_tuple+0xc28/0x1c10 [ 28.557912] ? __kernel_text_address+0xd/0x40 [ 28.562382] ? check_noncircular+0x20/0x20 [ 28.566588] ? hash_by_src+0x380/0x380 [ 28.570446] ? add_lock_to_list.isra.29+0x24d/0x352 [ 28.575431] ? check_noncircular+0x20/0x20 [ 28.579636] ? save_stack_trace+0x1a/0x20 [ 28.583762] ? find_held_lock+0x35/0x1d0 [ 28.587803] ? nf_ct_invert_tuplepr+0x226/0x390 [ 28.592441] ? lock_downgrade+0x980/0x980 [ 28.596562] ? __lock_is_held+0xb6/0x140 [ 28.600597] ? nf_ct_invert_tuple+0x1b9/0x220 [ 28.605069] ? nf_ct_invert_tuplepr+0x24f/0x390 [ 28.609713] ? destroy_conntrack+0x2f0/0x2f0 [ 28.614097] ? nf_ct_ext_add+0x2d0/0x6c0 [ 28.618132] nf_nat_setup_info+0x1c2/0xe00 [ 28.622340] ? nf_nat_proto_clean+0x1b0/0x1b0 [ 28.626807] ? check_noncircular+0x20/0x20 [ 28.631027] ? print_irqtrace_events+0x270/0x270 [ 28.635757] ? find_held_lock+0x35/0x1d0 [ 28.639795] nf_nat_redirect_ipv6+0x306/0x730 [ 28.644262] ? sctp_csum_update+0x30/0x30 [ 28.648382] ? mark_held_locks+0xaf/0x100 [ 28.652502] ? print_irqtrace_events+0x270/0x270 [ 28.657233] ? __nf_ct_refresh_acct+0x10e/0x260 [ 28.661875] redirect_tg6+0x7f/0xb0 [ 28.665475] ip6t_do_table+0xc2a/0x1a30 [ 28.669422] ? mark_held_locks+0xaf/0x100 [ 28.673558] ? __local_bh_enable_ip+0x121/0x230 [ 28.678204] ? nf_conntrack_in+0x439/0x1450 [ 28.682497] ? ip6t_error+0x60/0x60 [ 28.686101] ? nf_conntrack_find_get+0x40/0x40 [ 28.690655] ? ip6t_error+0x60/0x60 [ 28.694255] ip6table_nat_do_chain+0x65/0x80 [ 28.698634] nf_nat_ipv6_fn+0x594/0xa80 [ 28.702577] ? ip6table_nat_fn+0x40/0x40 [ 28.706607] ? nf_nat_ipv6_secure_port+0x30/0x30 [ 28.711333] ? ip6table_mangle_hook+0x117/0x920 [ 28.715978] ? ip6table_mangle_net_exit+0xa0/0xa0 [ 28.720793] ? ip6table_nat_fn+0x40/0x40 [ 28.724826] nf_nat_ipv6_local_fn+0x33/0x5d0 [ 28.729206] ip6table_nat_local_fn+0x2c/0x40 [ 28.733585] nf_hook_slow+0xba/0x1a0 [ 28.737271] ip6_xmit+0x10ec/0x2260 [ 28.740872] ? ip6_finish_output2+0x23a0/0x23a0 [ 28.745513] ? fl6_update_dst+0x127/0x2b0 [ 28.749632] ? inet6_csk_route_socket+0x691/0xe80 [ 28.754446] ? check_noncircular+0x20/0x20 [ 28.758650] ? lock_acquire+0x1d5/0x580 [ 28.762605] ? lock_acquire+0x1d5/0x580 [ 28.766548] ? inet6_csk_xmit+0x114/0x580 [ 28.770666] ? ip6_forward_finish+0x140/0x140 [ 28.775131] ? lock_release+0xa40/0xa40 [ 28.779086] inet6_csk_xmit+0x2fc/0x580 [ 28.783039] ? inet6_csk_update_pmtu+0x160/0x160 [ 28.787769] ? skb_checksum+0xd1/0x130 [ 28.791625] ? __skb_checksum+0x7e0/0x7e0 [ 28.795741] ? skb_send_sock+0x50/0x50 [ 28.799606] ? dccp_v6_send_check+0x278/0x3e0 [ 28.804076] dccp_transmit_skb+0x9ac/0x10f0 [ 28.808375] dccp_connect+0x369/0x670 [ 28.812145] ? dccp_skb_entail+0xc0/0xc0 [ 28.816182] dccp_v6_connect+0xe17/0x1bf0 [ 28.820304] ? dccp_v6_init_sock+0x90/0x90 [ 28.824512] ? avc_denied+0x117/0x150 [ 28.828287] ? avc_has_perm+0x4fb/0x680 [ 28.832229] ? avc_has_perm+0x43e/0x680 [ 28.836174] ? avc_has_perm_noaudit+0x520/0x520 [ 28.840812] ? trace_hardirqs_on+0xd/0x10 [ 28.844932] ? check_noncircular+0x20/0x20 [ 28.849136] ? sock_has_perm+0x2a4/0x420 [ 28.853174] ? selinux_secmark_relabel_packet+0xc0/0xc0 [ 28.858518] __inet_stream_connect+0x2d4/0xf00 [ 28.863068] ? __inet_stream_connect+0x2d4/0xf00 [ 28.867795] ? lock_acquire+0x1d5/0x580 [ 28.871737] ? lock_sock_nested+0xa3/0x110 [ 28.875939] ? lock_acquire+0x1d5/0x580 [ 28.879884] ? inet_bind+0x930/0x930 [ 28.883572] ? mark_held_locks+0xaf/0x100 [ 28.887692] ? do_raw_spin_trylock+0x190/0x190 [ 28.892244] ? __local_bh_enable_ip+0x121/0x230 [ 28.896883] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.901867] ? lock_sock_nested+0x91/0x110 [ 28.906072] ? trace_hardirqs_on+0xd/0x10 [ 28.910195] ? __local_bh_enable_ip+0x121/0x230 [ 28.914837] inet_stream_connect+0x58/0xa0 [ 28.919046] SYSC_connect+0x213/0x4a0 [ 28.922820] ? SYSC_bind+0x410/0x410 [ 28.926507] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 28.931058] ? vmacache_find+0x5f/0x280 [ 28.935025] ? mm_fault_error+0x2c0/0x2c0 [ 28.939149] ? move_addr_to_kernel+0x60/0x60 [ 28.943532] SyS_connect+0x24/0x30 [ 28.947046] ? SyS_accept+0x30/0x30 [ 28.950645] do_syscall_64+0x282/0x940 [ 28.954503] ? __do_page_fault+0xc90/0xc90 [ 28.958709] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.963436] ? syscall_return_slowpath+0x550/0x550 [ 28.968337] ? syscall_return_slowpath+0x2ac/0x550 [ 28.973259] ? prepare_exit_to_usermode+0x350/0x350 [ 28.978254] ? retint_user+0x18/0x18 [ 28.981942] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.986758] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 28.991916] RIP: 0033:0x441c69 [ 28.995078] RSP: 002b:00007ffc2275e9d8 EFLAGS: 00000217 ORIG_RAX: 000000000000002a [ 29.002763] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000441c69 [ 29.010013] RDX: 000000000000001c RSI: 00000000208fdfe4 RDI: 0000000000000003 [ 29.017260] RBP: 00000000006cc018 R08: 0000000000000000 R09: 0000000000000000 [ 29.024501] R10: 0000000000000538 R11: 0000000000000217 R12: 0000000000403590 [ 29.031740] R13: 0000000000403620 R14: 0000000000000000 R15: 0000000000000000 [ 29.038988] Code: 48 89 f0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 46 02 00 00 48 8b 45 c8 44 0f b7 20 e8 a8 a4 04 fd 31 d2 41 0f b7 c4 4c 89 f9 <41> f7 f6 48 c1 e9 03 48 b8 00 00 00 00 00 fc ff df 0f b6 0c 01 [ 29.058090] RIP: nf_nat_l4proto_unique_tuple+0x291/0x530 RSP: ffff8801d40f6778 [ 29.065453] ---[ end trace 20e121682cf7ba61 ]--- [ 29.070208] Kernel panic - not syncing: Fatal exception in interrupt [ 29.076718] Dumping ftrace buffer: [ 29.080227] (ftrace buffer empty) [ 29.083909] Kernel Offset: disabled [ 29.087505] Rebooting in 86400 seconds..