[....] 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. [ 40.428437] audit: type=1800 audit(1550551137.040:33): pid=7684 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 44.452584] kauditd_printk_skb: 1 callbacks suppressed [ 44.452598] audit: type=1400 audit(1550551141.060:35): avc: denied { map } for pid=7860 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 '10.128.0.61' (ECDSA) to the list of known hosts. [ 51.264942] audit: type=1400 audit(1550551147.880:36): avc: denied { map } for pid=7872 comm="syz-executor344" path="/root/syz-executor344235565" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 51.306319] IPVS: ftp: loaded support on port[0] = 21 [ 51.320349] IPVS: ftp: loaded support on port[0] = 21 [ 51.333172] IPVS: ftp: loaded support on port[0] = 21 [ 51.342587] IPVS: ftp: loaded support on port[0] = 21 [ 51.350985] IPVS: ftp: loaded support on port[0] = 21 [ 51.359881] IPVS: ftp: loaded support on port[0] = 21 [ 51.375564] audit: type=1400 audit(1550551147.990:37): avc: denied { associate } for pid=7884 comm="syz-executor344" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 52.907872] cgroup: fork rejected by pids controller in /syz0 executing program executing program executing program executing program executing program [ 52.951843] cgroup: fork rejected by pids controller in /syz1 [ 52.974446] cgroup: fork rejected by pids controller in /syz2 [ 52.979932] cgroup: fork rejected by pids controller in /syz3 executing program executing program executing program executing program [ 52.998222] cgroup: fork rejected by pids controller in /syz5 [ 53.009047] cgroup: fork rejected by pids controller in /syz4 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.654986] WARNING: CPU: 0 PID: 45 at net/ipv6/xfrm6_tunnel.c:351 xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.664527] Kernel panic - not syncing: panic_on_warn set ... [ 54.670399] CPU: 0 PID: 45 Comm: kworker/u4:2 Not tainted 5.0.0-rc7 #77 [ 54.677134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.686475] Workqueue: netns cleanup_net [ 54.690513] Call Trace: [ 54.693134] dump_stack+0x172/0x1f0 [ 54.696797] ? xfrm6_tunnel_net_exit+0x150/0x370 [ 54.701560] panic+0x2cb/0x65c [ 54.704740] ? __warn_printk+0xf3/0xf3 [ 54.708615] ? xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.713363] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.718885] ? __warn.cold+0x5/0x45 [ 54.722878] ? __warn+0xe8/0x1d0 [ 54.726241] ? xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.730986] __warn.cold+0x20/0x45 [ 54.734512] ? xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.739285] report_bug+0x263/0x2b0 [ 54.742907] do_error_trap+0x11b/0x200 [ 54.746793] do_invalid_op+0x37/0x50 [ 54.750496] ? xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.755250] invalid_op+0x14/0x20 [ 54.758706] RIP: 0010:xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.764052] Code: 4c 89 e0 48 c1 e8 03 42 80 3c 38 00 0f 85 73 01 00 00 4d 8b 34 24 31 ff 4c 89 f6 e8 9b c1 55 fb 4d 85 f6 74 b3 e8 f1 bf 55 fb <0f> 0b eb aa 48 81 c3 00 08 00 00 45 31 e4 49 be 00 00 00 00 00 fc [ 54.782949] RSP: 0018:ffff8880a9aafbe0 EFLAGS: 00010293 [ 54.788295] RAX: ffff8880a9abc440 RBX: ffff88808a1f5740 RCX: ffffffff861a2185 [ 54.795545] RDX: 0000000000000000 RSI: ffffffff861a218f RDI: 0000000000000007 [ 54.802797] RBP: ffff8880a9aafc08 R08: ffff8880a9abc440 R09: ffff8880a9abcd30 [ 54.810222] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808a1f5f38 [ 54.817475] R13: 00000000000000ff R14: ffff8880a0a51780 R15: dffffc0000000000 [ 54.824741] ? xfrm6_tunnel_net_exit+0x1d5/0x370 [ 54.829480] ? xfrm6_tunnel_net_exit+0x1df/0x370 [ 54.834224] ? xfrm6_tunnel_alloc_spi+0x920/0x920 [ 54.839053] ops_exit_list.isra.0+0xb0/0x160 [ 54.843759] cleanup_net+0x3fb/0x960 [ 54.847463] ? netns_install+0x1d0/0x1d0 [ 54.851511] ? __lock_is_held+0xb6/0x140 [ 54.855560] ? check_preemption_disabled+0x48/0x290 [ 54.860563] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 54.865999] process_one_work+0x98e/0x1790 [ 54.870224] ? pwq_dec_nr_in_flight+0x320/0x320 [ 54.874885] ? lock_acquire+0x16f/0x3f0 [ 54.878850] worker_thread+0x98/0xe40 [ 54.882642] ? trace_hardirqs_on+0x67/0x230 [ 54.886972] kthread+0x357/0x430 [ 54.890352] ? process_one_work+0x1790/0x1790 [ 54.894850] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 54.900386] ret_from_fork+0x3a/0x50 [ 54.905291] Kernel Offset: disabled [ 54.909028] Rebooting in 86400 seconds..