[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 60.301872][ T27] audit: type=1800 audit(1557863176.176:25): pid=8797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 60.340434][ T27] audit: type=1800 audit(1557863176.176:26): pid=8797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 60.397926][ T27] audit: type=1800 audit(1557863176.176:27): pid=8797 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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 '10.128.0.55' (ECDSA) to the list of known hosts. 2019/05/14 19:46:26 fuzzer started 2019/05/14 19:46:29 connecting to host at 10.128.0.26:37371 2019/05/14 19:46:29 checking machine... 2019/05/14 19:46:29 checking revisions... 2019/05/14 19:46:29 testing simple program... syzkaller login: [ 73.785840][ T8961] IPVS: ftp: loaded support on port[0] = 21 2019/05/14 19:46:29 building call list... [ 75.057724][ T8968] can: request_module (can-proto-0) failed. [ 75.430890][ T7] ------------[ cut here ]------------ [ 75.436450][ T7] remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy' [ 75.446941][ T7] WARNING: CPU: 1 PID: 7 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 [ 75.455960][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 75.462527][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.1.0-next-20190514 #11 [ 75.470739][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.480784][ T7] Workqueue: netns cleanup_net [ 75.485522][ T7] Call Trace: [ 75.488792][ T7] dump_stack+0x172/0x1f0 [ 75.493108][ T7] ? remove_proc_entry+0x300/0x410 [ 75.498214][ T7] panic+0x2cb/0x75a [ 75.502113][ T7] ? __warn_printk+0xf3/0xf3 [ 75.506701][ T7] ? remove_proc_entry+0x367/0x410 [ 75.511801][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.518023][ T7] ? __warn.cold+0x5/0x47 [ 75.522333][ T7] ? __warn+0xe8/0x1d0 [ 75.526388][ T7] ? remove_proc_entry+0x367/0x410 [ 75.531480][ T7] __warn.cold+0x20/0x47 [ 75.535703][ T7] ? vprintk_emit+0x1ea/0x700 [ 75.540383][ T7] ? remove_proc_entry+0x367/0x410 [ 75.545497][ T7] report_bug+0x263/0x2b0 [ 75.549835][ T7] do_error_trap+0x11b/0x200 [ 75.554434][ T7] do_invalid_op+0x37/0x50 [ 75.558834][ T7] ? remove_proc_entry+0x367/0x410 [ 75.563932][ T7] invalid_op+0x14/0x20 [ 75.568075][ T7] RIP: 0010:remove_proc_entry+0x367/0x410 [ 75.573775][ T7] 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 40 85 97 87 48 c7 c7 c0 84 97 87 e8 77 b0 6d ff <0f> 0b e9 4b fe ff ff e8 1d 53 d4 ff e9 b5 fd ff ff e8 d3 53 d4 ff [ 75.593367][ T7] RSP: 0018:ffff8880a98a7b10 EFLAGS: 00010286 [ 75.599436][ T7] RAX: 0000000000000000 RBX: 1ffff11015314f64 RCX: 0000000000000000 [ 75.607478][ T7] RDX: 0000000000000000 RSI: ffffffff815b20a6 RDI: ffffed1015314f54 [ 75.615432][ T7] RBP: ffff8880a98a7bc0 R08: ffff8880a98981c0 R09: ffff8880a9898ab0 [ 75.623382][ T7] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809e9bc780 [ 75.631333][ T7] R13: ffff8880a65c5340 R14: ffff88809e9bc830 R15: dffffc0000000000 [ 75.639324][ T7] ? vprintk_func+0x86/0x189 [ 75.643902][ T7] ? proc_readdir+0x80/0x80 [ 75.648402][ T7] ? cache_destroy_net+0x3c/0x50 [ 75.653338][ T7] rpc_proc_exit+0x3e/0x50 [ 75.657739][ T7] sunrpc_exit_net+0x187/0x2d0 [ 75.662482][ T7] ? xdr_free_bvec+0x70/0x70 [ 75.667056][ T7] ops_exit_list.isra.0+0xb0/0x160 [ 75.672166][ T7] cleanup_net+0x3fb/0x960 [ 75.676567][ T7] ? netns_install+0x1d0/0x1d0 [ 75.681322][ T7] process_one_work+0x98e/0x1790 [ 75.686247][ T7] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.691600][ T7] ? lock_acquire+0x16f/0x3f0 [ 75.696302][ T7] worker_thread+0x98/0xe40 [ 75.700795][ T7] kthread+0x357/0x430 [ 75.704849][ T7] ? process_one_work+0x1790/0x1790 [ 75.710031][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 75.716251][ T7] ret_from_fork+0x3a/0x50 [ 75.721541][ T7] Kernel Offset: disabled [ 75.725950][ T7] Rebooting in 86400 seconds..