[....] Starting enhanced syslogd: rsyslogd[ 13.090368] audit: type=1400 audit(1515913532.911:5): avc: denied { syslog } for pid=3504 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: [ 19.348614] audit: type=1400 audit(1515913539.169:6): avc: denied { map } for pid=3644 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 '10.128.0.37' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 26.986857] audit: type=1400 audit(1515913546.807:7): avc: denied { map } for pid=3658 comm="syzkaller288862" path="/root/syzkaller288862609" 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 [ 27.266428] ip (3725) used greatest stack depth: 15904 bytes left [ 27.303388] 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 [ 27.682560] audit: type=1400 audit(1515913547.503:8): avc: denied { sys_admin } for pid=3658 comm="syzkaller288862" 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 [ 27.851483] audit: type=1400 audit(1515913547.672:9): avc: denied { sys_chroot } for pid=3814 comm="syzkaller288862" 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 [ 27.876202] audit: type=1400 audit(1515913547.673:10): avc: denied { map_create } for pid=3814 comm="syzkaller288862" 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 [ 27.898923] audit: type=1400 audit(1515913547.674:11): avc: denied { map_read map_write } for pid=3814 comm="syzkaller288862" 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 [ 27.931250] kasan: CONFIG_KASAN_INLINE enabled [ 27.935897] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.943283] general protection fault: 0000 [#1] SMP KASAN [ 27.948791] Dumping ftrace buffer: [ 27.952301] (ftrace buffer empty) [ 27.955977] Modules linked in: [ 27.959139] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc7+ #171 [ 27.966092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.975451] Workqueue: events bpf_map_free_deferred [ 27.980443] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 27.984990] RSP: 0018:ffff8801d98af458 EFLAGS: 00010293 [ 27.990318] RAX: ffff8801d98b6600 RBX: 988001d000000ee6 RCX: ffffffff817db094 [ 27.997641] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 988001d000000ee6 [ 28.004894] RBP: ffff8801d98af4e8 R08: 1ffff1003b315e6a R09: 0000000000000000 [ 28.012132] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b315e8c [ 28.019372] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 28.026610] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 28.034802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.040665] CR2: 0000000020fe6000 CR3: 0000000006822005 CR4: 00000000001606e0 [ 28.047907] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.055145] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.062382] Call Trace: [ 28.064941] ? bpf_prog_inc+0x20/0x20 [ 28.068707] ? kfree+0xf0/0x260 [ 28.071997] ? bpf_map_meta_free+0x15/0x20 [ 28.076198] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.081182] bpf_map_put+0x1a/0x20 [ 28.084691] bpf_map_fd_put_ptr+0x15/0x20 [ 28.088811] array_of_map_free+0x100/0x180 [ 28.093036] bpf_map_free_deferred+0xb0/0xe0 [ 28.097413] process_one_work+0xbbf/0x1b10 [ 28.101628] ? trace_hardirqs_on+0xd/0x10 [ 28.105746] ? pwq_dec_nr_in_flight+0x450/0x450 [ 28.110394] ? __schedule+0x8f3/0x2060 [ 28.114257] ? update_curr+0x2e3/0xa60 [ 28.118118] ? check_noncircular+0x20/0x20 [ 28.122948] ? __lock_is_held+0xb6/0x140 [ 28.127008] ? lock_acquire+0x1d5/0x580 [ 28.130969] ? lock_acquire+0x1d5/0x580 [ 28.134912] ? worker_thread+0x4a3/0x1990 [ 28.139024] ? lock_downgrade+0x980/0x980 [ 28.143139] ? lock_release+0xa40/0xa40 [ 28.147339] ? check_noncircular+0x20/0x20 [ 28.151540] ? do_raw_spin_trylock+0x190/0x190 [ 28.156095] worker_thread+0x223/0x1990 [ 28.160052] ? process_one_work+0x1b10/0x1b10 [ 28.164530] ? _raw_spin_unlock_irq+0x27/0x70 [ 28.168991] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.173974] ? trace_hardirqs_on+0xd/0x10 [ 28.178087] ? _raw_spin_unlock_irq+0x27/0x70 [ 28.182550] ? finish_task_switch+0x1d3/0x740 [ 28.187011] ? finish_task_switch+0x1aa/0x740 [ 28.191475] ? copy_overflow+0x20/0x20 [ 28.195340] ? __schedule+0x8f3/0x2060 [ 28.199207] ? find_held_lock+0x35/0x1d0 [ 28.203238] ? find_held_lock+0x35/0x1d0 [ 28.207272] ? complete+0x62/0x80 [ 28.210704] ? __schedule+0x2060/0x2060 [ 28.214668] ? do_wait_intr_irq+0x3e0/0x3e0 [ 28.218959] ? __lockdep_init_map+0xe4/0x650 [ 28.223353] ? do_raw_spin_trylock+0x190/0x190 [ 28.227903] ? lockdep_init_map+0x9/0x10 [ 28.231932] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 28.237020] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.242013] ? trace_hardirqs_on+0xd/0x10 [ 28.246128] ? __kthread_parkme+0x175/0x240 [ 28.250423] kthread+0x33c/0x400 [ 28.253759] ? process_one_work+0x1b10/0x1b10 [ 28.258220] ? kthread_stop+0x7a0/0x7a0 [ 28.262162] ret_from_fork+0x24/0x30 [ 28.265854] 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 [ 28.284938] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98af458 [ 28.291070] ---[ end trace 193cdfb8274a1f66 ]--- [ 28.295833] Kernel panic - not syncing: Fatal exception [ 28.301557] Dumping ftrace buffer: [ 28.305066] (ftrace buffer empty) [ 28.308751] Kernel Offset: disabled [ 28.312352] Rebooting in 86400 seconds..