[ 62.537749][ T26] audit: type=1800 audit(1557815596.569:25): pid=8793 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.576693][ T26] audit: type=1800 audit(1557815596.569:26): pid=8793 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.640759][ T26] audit: type=1800 audit(1557815596.569:27): pid=8793 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. [ 62.992040][ T8856] sshd (8856) used greatest stack depth: 23168 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.157' (ECDSA) to the list of known hosts. 2019/05/14 06:33:28 fuzzer started 2019/05/14 06:33:30 connecting to host at 10.128.0.26:46563 2019/05/14 06:33:30 checking machine... 2019/05/14 06:33:30 checking revisions... 2019/05/14 06:33:30 testing simple program... syzkaller login: [ 77.145384][ T8962] IPVS: ftp: loaded support on port[0] = 21 2019/05/14 06:33:31 building call list... [ 78.474887][ T8960] can: request_module (can-proto-0) failed. [ 78.888110][ T29] ------------[ cut here ]------------ [ 78.893753][ T29] remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy' [ 78.904358][ T29] WARNING: CPU: 1 PID: 29 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 [ 78.913481][ T29] Kernel panic - not syncing: panic_on_warn set ... [ 78.920104][ T29] CPU: 1 PID: 29 Comm: kworker/u4:2 Not tainted 5.1.0-next-20190514 #10 [ 78.928418][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.938499][ T29] Workqueue: netns cleanup_net [ 78.943264][ T29] Call Trace: [ 78.946555][ T29] dump_stack+0x172/0x1f0 [ 78.950916][ T29] ? remove_proc_entry+0x300/0x410 [ 78.956026][ T29] panic+0x2cb/0x75a [ 78.959922][ T29] ? __warn_printk+0xf3/0xf3 [ 78.964505][ T29] ? remove_proc_entry+0x367/0x410 [ 78.969615][ T29] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.975852][ T29] ? __warn.cold+0x5/0x47 [ 78.980194][ T29] ? __warn+0xe8/0x1d0 [ 78.984275][ T29] ? remove_proc_entry+0x367/0x410 [ 78.989395][ T29] __warn.cold+0x20/0x47 [ 78.993646][ T29] ? vprintk_emit+0x1ea/0x700 [ 78.998317][ T29] ? remove_proc_entry+0x367/0x410 [ 79.003446][ T29] report_bug+0x263/0x2b0 [ 79.007780][ T29] do_error_trap+0x11b/0x200 [ 79.012366][ T29] do_invalid_op+0x37/0x50 [ 79.016808][ T29] ? remove_proc_entry+0x367/0x410 [ 79.021917][ T29] invalid_op+0x14/0x20 [ 79.026094][ T29] RIP: 0010:remove_proc_entry+0x367/0x410 [ 79.031816][ T29] 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 [ 79.051413][ T29] RSP: 0018:ffff8880a9ac7b10 EFLAGS: 00010286 [ 79.057467][ T29] RAX: 0000000000000000 RBX: 1ffff11015358f64 RCX: 0000000000000000 [ 79.065446][ T29] RDX: 0000000000000000 RSI: ffffffff815b20a6 RDI: ffffed1015358f54 [ 79.073414][ T29] RBP: ffff8880a9ac7bc0 R08: ffff8880a9ab4040 R09: ffff8880a9ab4930 [ 79.081384][ T29] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809e8a5a00 [ 79.089364][ T29] R13: ffff8880a5f253c0 R14: ffff88809e8a5ab0 R15: dffffc0000000000 [ 79.097690][ T29] ? vprintk_func+0x86/0x189 [ 79.102286][ T29] ? proc_readdir+0x80/0x80 [ 79.106787][ T29] ? cache_destroy_net+0x3c/0x50 [ 79.111735][ T29] rpc_proc_exit+0x3e/0x50 [ 79.116147][ T29] sunrpc_exit_net+0x187/0x2d0 [ 79.120907][ T29] ? xdr_free_bvec+0x70/0x70 [ 79.125598][ T29] ops_exit_list.isra.0+0xb0/0x160 [ 79.130724][ T29] cleanup_net+0x3fb/0x960 [ 79.135163][ T29] ? netns_install+0x1d0/0x1d0 [ 79.147432][ T29] process_one_work+0x98e/0x1790 [ 79.154985][ T29] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.160360][ T29] ? lock_acquire+0x16f/0x3f0 [ 79.165044][ T29] worker_thread+0x98/0xe40 [ 79.169543][ T29] ? trace_hardirqs_on+0x67/0x230 [ 79.174687][ T29] kthread+0x357/0x430 [ 79.178750][ T29] ? process_one_work+0x1790/0x1790 [ 79.183952][ T29] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 79.190187][ T29] ret_from_fork+0x3a/0x50 [ 79.195930][ T29] Kernel Offset: disabled [ 79.200352][ T29] Rebooting in 86400 seconds..