[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.838720][ T26] audit: type=1800 audit(1557815597.126:25): pid=8948 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.883861][ T26] audit: type=1800 audit(1557815597.136:26): pid=8948 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.924675][ T26] audit: type=1800 audit(1557815597.136:27): pid=8948 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 '10.128.0.56' (ECDSA) to the list of known hosts. 2019/05/14 06:33:28 fuzzer started 2019/05/14 06:33:31 connecting to host at 10.128.0.26:37657 2019/05/14 06:33:31 checking machine... 2019/05/14 06:33:31 checking revisions... 2019/05/14 06:33:31 testing simple program... syzkaller login: [ 77.562826][ T9113] IPVS: ftp: loaded support on port[0] = 21 2019/05/14 06:33:31 building call list... [ 78.832166][ T9118] can: request_module (can-proto-0) failed. [ 79.234764][ T45] ------------[ cut here ]------------ [ 79.240402][ T45] remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy' [ 79.250939][ T45] WARNING: CPU: 1 PID: 45 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 [ 79.261755][ T45] Kernel panic - not syncing: panic_on_warn set ... [ 79.268346][ T45] CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.1.0-next-20190514 #10 [ 79.276676][ T45] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.286736][ T45] Workqueue: netns cleanup_net [ 79.291492][ T45] Call Trace: [ 79.294820][ T45] dump_stack+0x172/0x1f0 [ 79.299157][ T45] ? remove_proc_entry+0x300/0x410 [ 79.314258][ T45] panic+0x2cb/0x75a [ 79.318547][ T45] ? __warn_printk+0xf3/0xf3 [ 79.332622][ T45] ? remove_proc_entry+0x367/0x410 [ 79.337775][ T45] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 79.344061][ T45] ? __warn.cold+0x5/0x47 [ 79.348418][ T45] ? __warn+0xe8/0x1d0 [ 79.352516][ T45] ? remove_proc_entry+0x367/0x410 [ 79.357656][ T45] __warn.cold+0x20/0x47 [ 79.361914][ T45] ? vprintk_emit+0x1ea/0x700 [ 79.372484][ T45] ? remove_proc_entry+0x367/0x410 [ 79.377614][ T45] report_bug+0x263/0x2b0 [ 79.381954][ T45] do_error_trap+0x11b/0x200 [ 79.386559][ T45] do_invalid_op+0x37/0x50 [ 79.391022][ T45] ? remove_proc_entry+0x367/0x410 [ 79.396147][ T45] invalid_op+0x14/0x20 [ 79.400316][ T45] RIP: 0010:remove_proc_entry+0x367/0x410 [ 79.406039][ T45] 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 [ 79.426038][ T45] RSP: 0018:ffff8880a9b0fb10 EFLAGS: 00010286 [ 79.432116][ T45] RAX: 0000000000000000 RBX: 1ffff11015361f64 RCX: 0000000000000000 [ 79.440095][ T45] RDX: 0000000000000000 RSI: ffffffff815b20a6 RDI: ffffed1015361f54 [ 79.448073][ T45] RBP: ffff8880a9b0fbc0 R08: ffff8880a9ab6440 R09: ffff8880a9ab6d30 [ 79.456041][ T45] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888086a2f280 [ 79.464028][ T45] R13: ffff8880a5901180 R14: ffff888086a2f330 R15: dffffc0000000000 [ 79.472146][ T45] ? vprintk_func+0x86/0x189 [ 79.476753][ T45] ? proc_readdir+0x80/0x80 [ 79.481262][ T45] ? cache_destroy_net+0x3c/0x50 [ 79.486215][ T45] rpc_proc_exit+0x3e/0x50 [ 79.497920][ T45] sunrpc_exit_net+0x187/0x2d0 [ 79.502690][ T45] ? xdr_free_bvec+0x70/0x70 [ 79.507293][ T45] ops_exit_list.isra.0+0xb0/0x160 [ 79.512414][ T45] cleanup_net+0x3fb/0x960 [ 79.516844][ T45] ? netns_install+0x1d0/0x1d0 [ 79.521628][ T45] process_one_work+0x98e/0x1790 [ 79.526603][ T45] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.531994][ T45] ? lock_acquire+0x16f/0x3f0 [ 79.536708][ T45] worker_thread+0x98/0xe40 [ 79.541217][ T45] ? trace_hardirqs_on+0x67/0x230 [ 79.546246][ T45] kthread+0x357/0x430 [ 79.550313][ T45] ? process_one_work+0x1790/0x1790 [ 79.555529][ T45] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 79.561772][ T45] ret_from_fork+0x3a/0x50 [ 79.567493][ T45] Kernel Offset: disabled [ 79.571939][ T45] Rebooting in 86400 seconds..