[ 39.013597][ T26] audit: type=1800 audit(1557729711.712:25): pid=7797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 39.052315][ T26] audit: type=1800 audit(1557729711.712:26): pid=7797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.093773][ T26] audit: type=1800 audit(1557729711.722:27): pid=7797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 39.118098][ T26] audit: type=1800 audit(1557729711.722:28): pid=7797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. 2019/05/13 06:41:59 fuzzer started 2019/05/13 06:42:02 connecting to host at 10.128.0.26:46187 2019/05/13 06:42:02 checking machine... 2019/05/13 06:42:02 checking revisions... 2019/05/13 06:42:02 testing simple program... syzkaller login: [ 50.270484][ T7961] IPVS: ftp: loaded support on port[0] = 21 2019/05/13 06:42:03 building call list... [ 51.506704][ T7950] can: request_module (can-proto-0) failed. [ 51.901972][ T21] ------------[ cut here ]------------ [ 51.907585][ T21] remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy' [ 51.918263][ T21] WARNING: CPU: 0 PID: 21 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 [ 51.927394][ T21] Kernel panic - not syncing: panic_on_warn set ... [ 51.934004][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.1.0-next-20190513 #7 [ 51.942232][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.953158][ T21] Workqueue: netns cleanup_net [ 51.958110][ T21] Call Trace: [ 51.961400][ T21] dump_stack+0x172/0x1f0 [ 51.965770][ T21] ? remove_proc_entry+0x350/0x410 [ 51.970884][ T21] panic+0x2cb/0x75a [ 51.974785][ T21] ? __warn_printk+0xf3/0xf3 [ 51.979465][ T21] ? remove_proc_entry+0x367/0x410 [ 51.984715][ T21] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.991090][ T21] ? __warn.cold+0x5/0x47 [ 51.995529][ T21] ? __warn+0xe8/0x1d0 [ 51.999613][ T21] ? remove_proc_entry+0x367/0x410 [ 52.004765][ T21] __warn.cold+0x20/0x47 [ 52.009117][ T21] ? vprintk_emit+0x1ea/0x700 [ 52.014160][ T21] ? remove_proc_entry+0x367/0x410 [ 52.019328][ T21] report_bug+0x263/0x2b0 [ 52.023671][ T21] do_error_trap+0x11b/0x200 [ 52.028286][ T21] do_invalid_op+0x37/0x50 [ 52.032705][ T21] ? remove_proc_entry+0x367/0x410 [ 52.037849][ T21] invalid_op+0x14/0x20 [ 52.042026][ T21] RIP: 0010:remove_proc_entry+0x367/0x410 [ 52.047934][ T21] Code: 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4c 49 8b 95 d0 00 00 00 48 c7 c6 80 85 97 87 48 c7 c7 00 85 97 87 e8 c7 b1 6d ff <0f> 0b e9 4b fe ff ff e8 6d 54 d4 ff e9 b5 fd ff ff e8 23 55 d4 ff [ 52.068692][ T21] RSP: 0018:ffff8880a9a0fb10 EFLAGS: 00010286 [ 52.076296][ T21] RAX: 0000000000000000 RBX: 1ffff11015341f64 RCX: 0000000000000000 [ 52.084656][ T21] RDX: 0000000000000000 RSI: ffffffff815b20a6 RDI: ffffed1015341f54 [ 52.093075][ T21] RBP: ffff8880a9a0fbc0 R08: ffff8880a99fa580 R09: ffff8880a99fae70 [ 52.101050][ T21] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808ed78780 [ 52.109231][ T21] R13: ffff8880a559f940 R14: ffff88808ed78830 R15: dffffc0000000000 [ 52.117672][ T21] ? vprintk_func+0x86/0x189 [ 52.122277][ T21] ? proc_readdir+0x80/0x80 [ 52.126809][ T21] ? cache_destroy_net+0x3c/0x50 [ 52.131783][ T21] rpc_proc_exit+0x3e/0x50 [ 52.136208][ T21] sunrpc_exit_net+0x187/0x2d0 [ 52.141206][ T21] ? xdr_free_bvec+0x70/0x70 [ 52.145804][ T21] ops_exit_list.isra.0+0xb0/0x160 [ 52.151466][ T21] cleanup_net+0x3fb/0x960 [ 52.156564][ T21] ? netns_install+0x1d0/0x1d0 [ 52.161722][ T21] process_one_work+0x98e/0x1790 [ 52.166673][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 52.172270][ T21] ? lock_acquire+0x16f/0x3f0 [ 52.176988][ T21] worker_thread+0x98/0xe40 [ 52.181521][ T21] kthread+0x357/0x430 [ 52.185701][ T21] ? process_one_work+0x1790/0x1790 [ 52.191004][ T21] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 52.198432][ T21] ret_from_fork+0x3a/0x50 [ 52.203827][ T21] Kernel Offset: disabled [ 52.208526][ T21] Rebooting in 86400 seconds..