[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.647137][ T26] audit: type=1800 audit(1557960726.461:25): pid=8926 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.683226][ T26] audit: type=1800 audit(1557960726.461:26): pid=8926 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.704050][ T26] audit: type=1800 audit(1557960726.471:27): pid=8926 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 '10.128.0.112' (ECDSA) to the list of known hosts. 2019/05/15 22:52:16 fuzzer started 2019/05/15 22:52:19 connecting to host at 10.128.0.26:37511 2019/05/15 22:52:19 checking machine... 2019/05/15 22:52:19 checking revisions... 2019/05/15 22:52:19 testing simple program... syzkaller login: [ 76.156544][ T9094] IPVS: ftp: loaded support on port[0] = 21 2019/05/15 22:52:20 building call list... [ 77.551196][ T9099] can: request_module (can-proto-0) failed. [ 77.834199][ T7] ------------[ cut here ]------------ [ 77.839753][ T7] remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy' [ 77.850312][ T7] WARNING: CPU: 1 PID: 7 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 [ 77.859616][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 77.866199][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.1.0-next-20190515 #14 [ 77.885209][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.895270][ T7] Workqueue: netns cleanup_net [ 77.900019][ T7] Call Trace: [ 77.903298][ T7] dump_stack+0x172/0x1f0 [ 77.907617][ T7] ? remove_proc_entry+0x340/0x410 [ 77.912720][ T7] panic+0x2cb/0x75a [ 77.916600][ T7] ? __warn_printk+0xf3/0xf3 [ 77.921178][ T7] ? remove_proc_entry+0x367/0x410 [ 77.926271][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.932493][ T7] ? __warn.cold+0x5/0x47 [ 77.936799][ T7] ? __warn+0xe8/0x1d0 [ 77.940848][ T7] ? remove_proc_entry+0x367/0x410 [ 77.945939][ T7] __warn.cold+0x20/0x47 [ 77.950176][ T7] ? vprintk_emit+0x1ea/0x700 [ 77.954834][ T7] ? remove_proc_entry+0x367/0x410 [ 77.959929][ T7] report_bug+0x263/0x2b0 [ 77.964270][ T7] do_error_trap+0x11b/0x200 [ 77.968859][ T7] do_invalid_op+0x37/0x50 [ 77.973257][ T7] ? remove_proc_entry+0x367/0x410 [ 77.978348][ T7] invalid_op+0x14/0x20 [ 77.982502][ T7] RIP: 0010:remove_proc_entry+0x367/0x410 [ 77.988219][ 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 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 [ 78.007803][ T7] RSP: 0018:ffff8880a98a7b10 EFLAGS: 00010286 [ 78.013847][ T7] RAX: 0000000000000000 RBX: 1ffff11015314f64 RCX: 0000000000000000 [ 78.021796][ T7] RDX: 0000000000000000 RSI: ffffffff815b2446 RDI: ffffed1015314f54 [ 78.029744][ T7] RBP: ffff8880a98a7bc0 R08: ffff8880a98981c0 R09: ffff8880a9898ab0 [ 78.037695][ T7] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808dfc3640 [ 78.045646][ T7] R13: ffff8880a58a2400 R14: ffff88808dfc36f0 R15: dffffc0000000000 [ 78.053614][ T7] ? vprintk_func+0x86/0x189 [ 78.058194][ T7] ? proc_readdir+0x80/0x80 [ 78.062679][ T7] ? cache_destroy_net+0x3c/0x50 [ 78.067604][ T7] rpc_proc_exit+0x3e/0x50 [ 78.072007][ T7] sunrpc_exit_net+0x187/0x2d0 [ 78.076749][ T7] ? xdr_free_bvec+0x70/0x70 [ 78.081327][ T7] ops_exit_list.isra.0+0xb0/0x160 [ 78.086427][ T7] cleanup_net+0x3fb/0x960 [ 78.090844][ T7] ? netns_install+0x1d0/0x1d0 [ 78.095606][ T7] process_one_work+0x98e/0x1790 [ 78.100531][ T7] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.105901][ T7] ? lock_acquire+0x16f/0x3f0 [ 78.110569][ T7] worker_thread+0x98/0xe40 [ 78.115061][ T7] kthread+0x357/0x430 [ 78.119112][ T7] ? process_one_work+0x1790/0x1790 [ 78.124292][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 78.130538][ T7] ret_from_fork+0x3a/0x50 [ 78.136438][ T7] Kernel Offset: disabled [ 78.140980][ T7] Rebooting in 86400 seconds..