[....] Starting enhanced syslogd: rsyslogd[ 13.132788] audit: type=1400 audit(1515914462.290:5): avc: denied { syslog } for pid=3506 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 19.368624] audit: type=1400 audit(1515914468.526:6): avc: denied { map } for pid=3646 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 '10.128.15.199' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 25.555968] audit: type=1400 audit(1515914474.713:7): avc: denied { map } for pid=3660 comm="syzkaller881589" path="/root/syzkaller881589909" 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 RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 25.805929] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready 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 [ 26.124940] audit: type=1400 audit(1515914475.282:8): avc: denied { sys_admin } for pid=3660 comm="syzkaller881589" 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 executing program [ 26.315412] audit: type=1400 audit(1515914475.473:9): avc: denied { sys_chroot } for pid=3815 comm="syzkaller881589" 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 [ 26.340108] audit: type=1400 audit(1515914475.475:10): avc: denied { map_create } for pid=3815 comm="syzkaller881589" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 26.362786] audit: type=1400 audit(1515914475.475:11): avc: denied { map_read map_write } for pid=3815 comm="syzkaller881589" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 26.395244] kasan: CONFIG_KASAN_INLINE enabled [ 26.399881] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.407267] general protection fault: 0000 [#1] SMP KASAN [ 26.412782] Dumping ftrace buffer: [ 26.416293] (ftrace buffer empty) [ 26.419983] Modules linked in: [ 26.423163] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc7+ #261 [ 26.430077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.439437] Workqueue: events bpf_map_free_deferred [ 26.444443] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 26.449009] RSP: 0018:ffff8801d98af458 EFLAGS: 00010293 [ 26.454346] RAX: ffff8801d98b6600 RBX: cc2001cb00000ee7 RCX: ffffffff817db094 [ 26.461612] RDX: 0000000000000000 RSI: 0000000000000001 RDI: cc2001cb00000ee7 [ 26.468857] RBP: ffff8801d98af4e8 R08: 1ffff1003b315e6a R09: 0000000000000000 [ 26.476098] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b315e8c [ 26.483338] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 26.490581] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 26.498780] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.504643] CR2: 0000000020fe6000 CR3: 0000000006822004 CR4: 00000000001606e0 [ 26.511886] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.519127] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.526380] Call Trace: [ 26.528957] ? bpf_prog_inc+0x20/0x20 [ 26.532818] ? kfree+0xf0/0x260 [ 26.536154] ? bpf_map_meta_free+0x15/0x20 [ 26.540362] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.545351] bpf_map_put+0x1a/0x20 [ 26.548859] bpf_map_fd_put_ptr+0x15/0x20 [ 26.552976] array_of_map_free+0x100/0x180 [ 26.557183] bpf_map_free_deferred+0xb0/0xe0 [ 26.561563] process_one_work+0xbbf/0x1b10 [ 26.565769] ? trace_hardirqs_on+0xd/0x10 [ 26.569891] ? pwq_dec_nr_in_flight+0x450/0x450 [ 26.574540] ? __schedule+0x8f3/0x2060 [ 26.578398] ? update_curr+0x2e3/0xa60 [ 26.582269] ? check_noncircular+0x20/0x20 [ 26.586476] ? __lock_is_held+0xb6/0x140 [ 26.590524] ? lock_acquire+0x1d5/0x580 [ 26.594588] ? lock_acquire+0x1d5/0x580 [ 26.598543] ? worker_thread+0x4a3/0x1990 [ 26.602670] ? lock_downgrade+0x980/0x980 [ 26.606790] ? lock_release+0xa40/0xa40 [ 26.610743] ? retint_kernel+0x10/0x10 [ 26.614602] ? do_raw_spin_trylock+0x190/0x190 [ 26.619158] worker_thread+0x223/0x1990 [ 26.623111] ? process_one_work+0x1b10/0x1b10 [ 26.627577] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.632044] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.637029] ? trace_hardirqs_on+0xd/0x10 [ 26.641156] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.645619] ? finish_task_switch+0x1d3/0x740 [ 26.650082] ? finish_task_switch+0x1aa/0x740 [ 26.654548] ? copy_overflow+0x20/0x20 [ 26.658411] ? __schedule+0x8f3/0x2060 [ 26.662277] ? find_held_lock+0x35/0x1d0 [ 26.666322] ? find_held_lock+0x35/0x1d0 [ 26.670359] ? complete+0x62/0x80 [ 26.673787] ? __schedule+0x2060/0x2060 [ 26.677731] ? do_wait_intr_irq+0x3e0/0x3e0 [ 26.682022] ? __lockdep_init_map+0xe4/0x650 [ 26.686401] ? do_raw_spin_trylock+0x190/0x190 [ 26.690951] ? lockdep_init_map+0x9/0x10 [ 26.694982] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 26.700053] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.705050] ? trace_hardirqs_on+0xd/0x10 [ 26.709169] ? __kthread_parkme+0x175/0x240 [ 26.713476] kthread+0x33c/0x400 [ 26.716813] ? process_one_work+0x1b10/0x1b10 [ 26.721275] ? kthread_stop+0x7a0/0x7a0 [ 26.725220] ret_from_fork+0x24/0x30 [ 26.728906] Code: b5 41 48 c7 45 80 15 c3 58 86 48 c7 45 88 30 b0 7d 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 ec 66 f2 ff ff 4b 48 74 2f e8 e1 66 f2 ff 48 b8 00 00 00 00 00 fc ff df [ 26.747975] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98af458 [ 26.754192] ---[ end trace 0469cbc681b6c225 ]--- [ 26.758953] Kernel panic - not syncing: Fatal exception [ 26.764694] Dumping ftrace buffer: [ 26.768208] (ftrace buffer empty) [ 26.771891] Kernel Offset: disabled [ 26.775495] Rebooting in 86400 seconds..