[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 65.642585][ T27] audit: type=1800 audit(1557960730.214:25): pid=8723 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 65.665699][ T27] audit: type=1800 audit(1557960730.224:26): pid=8723 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 65.686485][ T27] audit: type=1800 audit(1557960730.224:27): pid=8723 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 '10.128.0.144' (ECDSA) to the list of known hosts. 2019/05/15 22:52:19 fuzzer started 2019/05/15 22:52:22 connecting to host at 10.128.0.26:41303 2019/05/15 22:52:22 checking machine... 2019/05/15 22:52:22 checking revisions... 2019/05/15 22:52:22 testing simple program... syzkaller login: [ 77.648358][ T8889] IPVS: ftp: loaded support on port[0] = 21 2019/05/15 22:52:22 building call list... [ 78.856197][ T8878] can: request_module (can-proto-0) failed. [ 79.308196][ T3057] ------------[ cut here ]------------ [ 79.313751][ T3057] remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy' [ 79.324271][ T3057] WARNING: CPU: 0 PID: 3057 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 [ 79.333557][ T3057] Kernel panic - not syncing: panic_on_warn set ... [ 79.340171][ T3057] CPU: 0 PID: 3057 Comm: kworker/u4:4 Not tainted 5.1.0-next-20190515 #14 [ 79.348649][ T3057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.358700][ T3057] Workqueue: netns cleanup_net [ 79.363447][ T3057] Call Trace: [ 79.366737][ T3057] dump_stack+0x172/0x1f0 [ 79.371060][ T3057] ? remove_proc_entry+0x340/0x410 [ 79.376165][ T3057] panic+0x2cb/0x75a [ 79.380310][ T3057] ? __warn_printk+0xf3/0xf3 [ 79.384889][ T3057] ? remove_proc_entry+0x367/0x410 [ 79.390659][ T3057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 79.396887][ T3057] ? __warn.cold+0x5/0x47 [ 79.401200][ T3057] ? __warn+0xe8/0x1d0 [ 79.405250][ T3057] ? remove_proc_entry+0x367/0x410 [ 79.410343][ T3057] __warn.cold+0x20/0x47 [ 79.414594][ T3057] ? vprintk_emit+0x1ea/0x700 [ 79.419255][ T3057] ? remove_proc_entry+0x367/0x410 [ 79.424356][ T3057] report_bug+0x263/0x2b0 [ 79.428677][ T3057] do_error_trap+0x11b/0x200 [ 79.433252][ T3057] do_invalid_op+0x37/0x50 [ 79.437649][ T3057] ? remove_proc_entry+0x367/0x410 [ 79.442744][ T3057] invalid_op+0x14/0x20 [ 79.446885][ T3057] RIP: 0010:remove_proc_entry+0x367/0x410 [ 79.452585][ T3057] 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 8d 97 87 48 c7 c7 c0 8c 97 87 e8 87 c9 6d ff <0f> 0b e9 4b fe ff ff e8 cd 56 d4 ff e9 b5 fd ff ff e8 83 57 d4 ff [ 79.472187][ T3057] RSP: 0018:ffff88809e757b10 EFLAGS: 00010286 [ 79.478235][ T3057] RAX: 0000000000000000 RBX: 1ffff11013ceaf64 RCX: 0000000000000000 [ 79.486189][ T3057] RDX: 0000000000000000 RSI: ffffffff815b2446 RDI: ffffed1013ceaf54 [ 79.494143][ T3057] RBP: ffff88809e757bc0 R08: ffff88809e74c340 R09: ffff88809e74cc30 [ 79.502101][ T3057] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808f9e8e00 [ 79.510061][ T3057] R13: ffff88809af276c0 R14: ffff88808f9e8eb0 R15: dffffc0000000000 [ 79.518034][ T3057] ? vprintk_func+0x86/0x189 [ 79.522614][ T3057] ? proc_readdir+0x80/0x80 [ 79.527134][ T3057] ? cache_destroy_net+0x3c/0x50 [ 79.532072][ T3057] rpc_proc_exit+0x3e/0x50 [ 79.536475][ T3057] sunrpc_exit_net+0x187/0x2d0 [ 79.541225][ T3057] ? xdr_free_bvec+0x70/0x70 [ 79.545801][ T3057] ops_exit_list.isra.0+0xb0/0x160 [ 79.550898][ T3057] cleanup_net+0x3fb/0x960 [ 79.555400][ T3057] ? netns_install+0x1d0/0x1d0 [ 79.560153][ T3057] process_one_work+0x98e/0x1790 [ 79.565077][ T3057] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.570431][ T3057] ? lock_acquire+0x16f/0x3f0 [ 79.575094][ T3057] worker_thread+0x98/0xe40 [ 79.579583][ T3057] ? trace_hardirqs_on+0x67/0x230 [ 79.584596][ T3057] kthread+0x357/0x430 [ 79.588651][ T3057] ? process_one_work+0x1790/0x1790 [ 79.593827][ T3057] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 79.600053][ T3057] ret_from_fork+0x3a/0x50 [ 79.605543][ T3057] Kernel Offset: disabled [ 79.609953][ T3057] Rebooting in 86400 seconds..