[....] Starting enhanced syslogd: rsyslogd[ 15.450711] audit: type=1400 audit(1518227258.801:5): avc: denied { syslog } for pid=4005 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: [ 18.835275] audit: type=1400 audit(1518227262.186:6): avc: denied { map } for pid=4144 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 '10.128.0.39' (ECDSA) to the list of known hosts. [ 25.125887] audit: type=1400 audit(1518227268.476:7): avc: denied { map } for pid=4158 comm="syzkaller055039" path="/root/syzkaller055039285" 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 [ 25.137634] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 25.151878] audit: type=1400 audit(1518227268.476:8): avc: denied { sys_admin } for pid=4158 comm="syzkaller055039" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 25.184721] audit: type=1400 audit(1518227268.535:9): avc: denied { net_admin } for pid=4159 comm="syzkaller055039" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 25.370431] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument executing program [ 25.721447] audit: type=1400 audit(1518227269.072:10): avc: denied { sys_chroot } for pid=4159 comm="syzkaller055039" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 25.746179] audit: type=1400 audit(1518227269.072:11): avc: denied { net_raw } for pid=4159 comm="syzkaller055039" capability=13 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 25.771170] ------------[ cut here ]------------ [ 25.775956] kernel BUG at kernel/time/timer.c:958! [ 25.780891] invalid opcode: 0000 [#1] SMP KASAN [ 25.785540] Dumping ftrace buffer: [ 25.789062] (ftrace buffer empty) [ 25.792740] Modules linked in: [ 25.795905] CPU: 1 PID: 1826 Comm: kworker/1:2 Not tainted 4.15.0+ #306 [ 25.802622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.811955] Workqueue: ipv6_addrconf addrconf_dad_work [ 25.817202] RIP: 0010:mod_timer+0x7d6/0x13c0 [ 25.821576] RSP: 0018:ffff8801d24fe9f8 EFLAGS: 00010293 [ 25.826906] RAX: ffff8801d25246c0 RBX: ffff8801aec6cb50 RCX: ffffffff816052c6 [ 25.834143] RDX: 0000000000000000 RSI: 00000000fffbd14b RDI: ffff8801aec6cb68 [ 25.841389] RBP: ffff8801d24fec98 R08: 0000000000000000 R09: 1ffff1003a49fd6c [ 25.848627] R10: ffff8801d24feb28 R11: 0000000000000005 R12: dffffc0000000000 [ 25.855866] R13: ffff8801d24fec70 R14: 00000000fffbd14b R15: ffff8801af608f90 [ 25.863109] FS: 0000000000000000(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 25.871304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.877153] CR2: 00000000206d6fd0 CR3: 0000000006a22001 CR4: 00000000001606e0 [ 25.884393] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.891633] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.898871] Call Trace: [ 25.901432] ? check_noncircular+0x20/0x20 [ 25.905638] ? vsnprintf+0x1ed/0x1900 [ 25.909408] ? msleep_interruptible+0x150/0x150 [ 25.914053] ? find_held_lock+0x35/0x1d0 [ 25.918090] ? led_trigger_event+0xac/0xd0 [ 25.922294] ? lock_downgrade+0x980/0x980 [ 25.926410] ? nf_log_unbind_pf+0x140/0x140 [ 25.930701] ? lock_release+0xa40/0xa40 [ 25.934652] ? _raw_read_unlock+0x22/0x30 [ 25.938773] ? led_trigger_event+0xb1/0xd0 [ 25.942980] led_tg+0x1db/0x2e0 [ 25.946230] ? led_timeout_callback+0x20/0x20 [ 25.950701] ip6t_do_table+0xc2a/0x1a30 [ 25.954649] ? register_lock_class+0x1ae8/0x2820 [ 25.959381] ? ip6t_error+0x60/0x60 [ 25.962981] ? check_noncircular+0x20/0x20 [ 25.967277] ? lock_acquire+0x1d5/0x580 [ 25.971217] ? lock_acquire+0x1d5/0x580 [ 25.975159] ? pndisc_destructor+0x340/0x340 [ 25.979538] ? lock_release+0xa40/0xa40 [ 25.983484] ip6table_raw_hook+0x65/0x80 [ 25.987513] nf_hook_slow+0xba/0x1a0 [ 25.991199] nf_hook.constprop.27+0x3f6/0x830 [ 25.995664] ? pndisc_destructor+0x340/0x340 [ 26.000041] ? find_held_lock+0x35/0x1d0 [ 26.004072] ? lock_acquire+0x1d5/0x580 [ 26.008020] ? lock_acquire+0x1d5/0x580 [ 26.011964] ? ndisc_send_skb+0x826/0x1370 [ 26.016168] ? lock_downgrade+0x980/0x980 [ 26.020285] ? lock_release+0xa40/0xa40 [ 26.024231] ? ndisc_error_report+0x180/0x180 [ 26.028698] ndisc_send_skb+0xa51/0x1370 [ 26.032731] ? nf_hook.constprop.27+0x830/0x830 [ 26.037367] ? check_noncircular+0x20/0x20 [ 26.041570] ? refcount_add_not_zero+0x133/0x200 [ 26.046296] ? refcount_dec_if_one+0x20/0x20 [ 26.050675] ? print_irqtrace_events+0x270/0x270 [ 26.055410] ndisc_send_ns+0x38a/0x870 [ 26.059272] ? ndisc_netdev_event+0x4a0/0x4a0 [ 26.063737] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.068720] ? addrconf_dad_work+0xa5e/0x1320 [ 26.073184] addrconf_dad_work+0xb9e/0x1320 [ 26.077472] ? addrconf_dad_work+0xb9e/0x1320 [ 26.081937] ? addrconf_ifdown+0x14f0/0x14f0 [ 26.086314] ? __lock_is_held+0xb6/0x140 [ 26.090350] process_one_work+0xbbf/0x1af0 [ 26.094552] ? process_one_work+0xbbf/0x1af0 [ 26.098935] ? pwq_dec_nr_in_flight+0x450/0x450 [ 26.103578] ? __schedule+0x8ea/0x2040 [ 26.107440] ? __lock_acquire+0x664/0x3e00 [ 26.111645] ? __lock_is_held+0xb6/0x140 [ 26.115674] ? check_noncircular+0x20/0x20 [ 26.119881] ? check_noncircular+0x20/0x20 [ 26.124090] ? lock_acquire+0x1d5/0x580 [ 26.128035] ? lock_acquire+0x1d5/0x580 [ 26.131980] ? worker_thread+0x4a3/0x1990 [ 26.136096] ? lock_downgrade+0x980/0x980 [ 26.140215] ? lock_release+0xa40/0xa40 [ 26.144158] ? retint_kernel+0x10/0x10 [ 26.148019] ? do_raw_spin_trylock+0x190/0x190 [ 26.152579] worker_thread+0x223/0x1990 [ 26.156523] ? finish_task_switch+0x1e2/0x890 [ 26.160995] ? process_one_work+0x1af0/0x1af0 [ 26.165465] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.170450] ? trace_hardirqs_on+0xd/0x10 [ 26.174567] ? mmdrop+0x18/0x30 [ 26.177817] ? finish_task_switch+0x29b/0x890 [ 26.182284] ? copy_overflow+0x20/0x20 [ 26.186150] ? __schedule+0x8ea/0x2040 [ 26.190016] ? check_noncircular+0x20/0x20 [ 26.194224] ? find_held_lock+0x35/0x1d0 [ 26.198254] ? find_held_lock+0x35/0x1d0 [ 26.202290] ? find_held_lock+0x35/0x1d0 [ 26.206323] ? complete+0x62/0x80 [ 26.209752] ? __schedule+0x2040/0x2040 [ 26.213698] ? do_wait_intr_irq+0x3e0/0x3e0 [ 26.217989] ? __lockdep_init_map+0xe4/0x650 [ 26.222369] ? do_raw_spin_trylock+0x190/0x190 [ 26.226918] ? lockdep_init_map+0x9/0x10 [ 26.230948] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 26.236032] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.241029] ? trace_hardirqs_on+0xd/0x10 [ 26.245150] ? __kthread_parkme+0x175/0x240 [ 26.249442] kthread+0x33c/0x400 [ 26.252783] ? process_one_work+0x1af0/0x1af0 [ 26.257248] ? kthread_stop+0x7a0/0x7a0 [ 26.261195] ret_from_fork+0x3a/0x50 [ 26.264883] Code: 85 2a 0b 00 00 4d 8b 3c 24 4d 85 ff 75 9f 4c 8b bd 60 fd ff ff e8 bb 57 10 00 65 ff 0d 94 9a a1 7e e9 d9 fc ff ff e8 aa 57 10 00 <0f> 0b e8 a3 57 10 00 e9 14 fb ff ff e8 99 57 10 00 4c 89 bd 70 [ 26.283949] RIP: mod_timer+0x7d6/0x13c0 RSP: ffff8801d24fe9f8 [ 26.289828] ---[ end trace f661ab06f5dd8b3d ]--- [ 26.294575] Kernel panic - not syncing: Fatal exception in interrupt [ 26.301446] Dumping ftrace buffer: [ 26.304959] (ftrace buffer empty) [ 26.308639] Kernel Offset: disabled [ 26.312235] Rebooting in 86400 seconds..