Opened 11 years ago
Closed 6 years ago
#274 closed defect (fixed)
error_page 400 =444 /; утекают сокеты
| Reported by: | naikoto | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | |
| Component: | nginx-core | Version: | 1.3.x |
| Keywords: | Cc: | ||
| uname -a: | Linux 3.2.0-0.bpo.4-amd64 #1 SMP Debian 3.2.32-1~bpo60+1 x86_64 GNU/Linux | ||
| nginx -V: |
nginx version: nginx/1.3.11
configure arguments: --with-debug --prefix=/usr --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --pid-path=/var/run/nginx/nginx.pid --lock-path=/var/lock/nginx.lock --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/tmp/body --http-proxy-temp-path=/tmp/proxy --without-http_auth_basic_module --without-http_browser_module --without-http_empty_gif_module --without-http_fastcgi_module --without-http_geo_module --without-http_gzip_module --without-http_limit_req_module --without-http_limit_conn_module --without-http_map_module --without-http_memcached_module --without-http_proxy_module --without-http_scgi_module --without-http_split_clients_module --without-http_ssi_module --without-http_upstream_ip_hash_module --without-http_userid_module --without-http_uwsgi_module |
||
Description
Конфигурация для игнорирования неизвестных доменов.
При некорректном запросе соединение не закрывается и остаётся в CLOSE_WAIT.
Запрос должен быть с другого хоста.
echo -e '\x04\x01\x00P>\xECl\xC80\x00'|nc server 8000
conf
worker_processes 1;
worker_rlimit_core 500M;
working_directory /tmp/core/;
debug_points abort;
pid /tmp/nginx.pid;
events { worker_connections 1024; }
error_log /tmp/err debug;
http {
types { text/html html; }
access_log off;
server {
server_name _;
return 444;
error_page 400 =444 /;
}
}
error.log:
2013/01/06 13:59:37 [debug] 16876#0: *1 malloc: 083BFC68:656 2013/01/06 13:59:37 [debug] 16876#0: *1 malloc: 083C5E00:1024 2013/01/06 13:59:37 [debug] 16876#0: *1 posix_memalign: 083C6220:4096 @16 2013/01/06 13:59:37 [debug] 16876#0: *1 http process request line 2013/01/06 13:59:37 [debug] 16876#0: *1 recv: fd:5 11 of 1024 2013/01/06 13:59:37 [info] 16876#0: *1 client sent invalid method while reading client request line, client: 1.0.0.8, server: _, request: "^D^A^@P><EC>l<C8>0^@" 2013/01/06 13:59:37 [debug] 16876#0: *1 http finalize request: 400, "?" a:1, c:1 2013/01/06 13:59:37 [debug] 16876#0: *1 event timer del: 5: 256771487 2013/01/06 13:59:37 [debug] 16876#0: *1 http special response: 400, "?" 2013/01/06 13:59:37 [debug] 16876#0: *1 internal redirect: "/?" 2013/01/06 13:59:37 [debug] 16876#0: *1 rewrite phase: 0 2013/01/06 13:59:37 [debug] 16876#0: *1 http finalize request: 444, "/?" a:1, c:2 2013/01/06 13:59:37 [debug] 16876#0: *1 http terminate request count:2 2013/01/06 13:59:37 [debug] 16876#0: *1 http terminate cleanup count:2 blk:0 2013/01/06 13:59:37 [debug] 16876#0: *1 http finalize request: -4, "/?" a:1, c:2 2013/01/06 13:59:37 [debug] 16876#0: *1 http request count:2 blk:0 ... 2013/01/06 14:00:23 [alert] 16876#0: open socket #5 left in connection 2 2013/01/06 14:00:23 [alert] 16876#0: aborting 2013/01/06 14:00:23 [notice] 16875#0: signal 17 (SIGCHLD) received 2013/01/06 14:00:23 [alert] 16875#0: worker process 16876 exited on signal 6 (core dumped)
gdb
gdb) set $c = &ngx_cycle->connections[2]
(gdb) p $c->log->connection
$1 = 1
(gdb) p *$c
$2 = {data = 0x83bfc68, read = 0x83e5748, write = 0x83f2750, fd = 5, recv = 0x806e4d0 <ngx_unix_recv>,
send = 0x806ea14 <ngx_unix_send>, recv_chain = 0x806e650 <ngx_readv_chain>, send_chain = 0x8074a54 <ngx_linux_sendfile_chain>,
listening = 0x83c0924, sent = 0, log = 0x83bfb98, pool = 0x83bfb60, sockaddr = 0x83bfb88, socklen = 16, addr_text = {len = 7,
data = 0x83bfbb0 "1.0.0.8"}, local_sockaddr = 0x83cb5d4, buffer = 0x83bfbec, queue = {prev = 0x0, next = 0x0}, number = 1,
requests = 1, buffered = 0, log_error = 2, single_connection = 1, unexpected_eof = 0, timedout = 0, error = 0, destroyed = 0,
idle = 0, reusable = 0, close = 0, sendfile = 0, sndlowat = 0, tcp_nodelay = 0, tcp_nopush = 2}
(gdb) set $r = (ngx_http_request_t *) $c->data
(gdb) p *$r
$3 = {signature = 1347703880, connection = 0x83cd798, ctx = 0x83c6428, main_conf = 0x83c1080, srv_conf = 0x83c9a40,
loc_conf = 0x83c9a90, read_event_handler = 0x8085893 <ngx_http_block_reading>,
write_event_handler = 0x80851bb <ngx_http_terminate_handler>, cache = 0x0, upstream = 0x0, upstream_states = 0x0,
pool = 0x83c6220, header_in = 0x83bfbec, headers_in = {headers = {last = 0x0, part = {elts = 0x0, nelts = 0, next = 0x0},
size = 0, nalloc = 0, pool = 0x0}, host = 0x0, connection = 0x0, if_modified_since = 0x0, if_unmodified_since = 0x0,
if_match = 0x0, if_none_match = 0x0, user_agent = 0x0, referer = 0x0, content_length = 0x0, content_type = 0x0, range = 0x0,
if_range = 0x0, transfer_encoding = 0x0, expect = 0x0, authorization = 0x0, keep_alive = 0x0, user = {len = 0, data = 0x0},
passwd = {len = 0, data = 0x0}, cookies = {elts = 0x0, nelts = 0, size = 0, nalloc = 0, pool = 0x0}, server = {len = 0,
data = 0x0}, content_length_n = -1, keep_alive_n = -1, connection_type = 0, chunked = 0, msie = 0, msie6 = 0, opera = 0,
gecko = 0, chrome = 0, safari = 0, konqueror = 0}, headers_out = {headers = {last = 0x83bfd38, part = {elts = 0x83c6248,
nelts = 0, next = 0x0}, size = 24, nalloc = 20, pool = 0x83c6220}, status = 444, status_line = {len = 0, data = 0x0},
server = 0x0, date = 0x0, content_length = 0x0, content_encoding = 0x0, location = 0x0, refresh = 0x0, last_modified = 0x0,
content_range = 0x0, accept_ranges = 0x0, www_authenticate = 0x0, expires = 0x0, etag = 0x0, override_charset = 0x0,
content_type_len = 0, content_type = {len = 0, data = 0x0}, charset = {len = 0, data = 0x0}, content_type_lowcase = 0x0,
content_type_hash = 0, cache_control = {elts = 0x0, nelts = 0, size = 0, nalloc = 0, pool = 0x0}, content_length_n = -1,
date_time = 0, last_modified_time = -1}, request_body = 0x0, lingering_time = 0, start_sec = 1357466377, start_msec = 23,
method = 2, http_version = 0, request_line = {len = 10, data = 0x83c5e00 "\004\001"}, uri = {len = 1, data = 0x83c9e47 "/"},
args = {len = 0, data = 0x0}, exten = {len = 0, data = 0x0}, unparsed_uri = {len = 0, data = 0x0}, method_name = {len = 3,
data = 0x80b8cf8 "GET "}, http_protocol = {len = 0, data = 0x0}, out = 0x0, main = 0x83bfc68, parent = 0x0, postponed = 0x0,
post_subrequest = 0x0, posted_requests = 0x83bfec0, virtual_names = 0x0, phase_handler = 0, content_handler = 0,
access_code = 0, variables = 0x83c6478, ncaptures = 0, captures = 0x0, captures_data = 0x0, limit_rate = 0, header_size = 0,
request_length = 0, err_status = 444, http_connection = 0x83bfbcc, log_handler = 0x8086fef <ngx_http_log_error_handler>,
cleanup = 0x0, subrequests = 201, count = 1, blocked = 0, aio = 0, http_state = 1, complex_uri = 0, quoted_uri = 0,
plus_in_uri = 0, space_in_uri = 0, invalid_header = 0, add_uri_to_alias = 0, valid_location = 1, valid_unparsed_uri = 0,
uri_changed = 0, uri_changes = 10, request_body_in_single_buf = 0, request_body_in_file_only = 0,
request_body_in_persistent_file = 0, request_body_in_clean_file = 0, request_body_file_group_access = 0,
request_body_file_log_level = 5, subrequest_in_memory = 0, waited = 0, cached = 0, proxy = 0, bypass_cache = 0, no_cache = 0,
limit_conn_set = 0, limit_req_set = 0, pipeline = 0, plain_http = 0, chunked = 0, header_only = 0, keepalive = 0,
lingering_close = 0, discard_body = 0, internal = 1, error_page = 1, ignore_content_encoding = 0, filter_finalize = 0,
post_action = 0, request_complete = 0, request_output = 0, header_sent = 0, expect_tested = 1, root_tested = 0, done = 0,
logged = 0, buffered = 0, main_filter_need_in_memory = 0, filter_need_in_memory = 0, filter_need_temporary = 0,
allow_ranges = 0, state = 0, header_hash = 0, lowcase_index = 0, lowcase_header = '\000' <repeats 31 times>,
header_name_start = 0x0, header_name_end = 0x0, header_start = 0x0, header_end = 0x0,
uri_start = 0x83bfc68 "HTTP\230\327<\b(d<\b\200\020<\b@\232<\b\220\232<\b\223X\b\b\273Q\b\b", uri_end = 0x0, uri_ext = 0x0,
args_start = 0x0, request_start = 0x83c5e00 "\004\001", request_end = 0x0, method_end = 0x0, schema_start = 0x0,
schema_end = 0x0, host_start = 0x0, host_end = 0x0, port_start = 0x0, port_end = 0x0, http_minor = 0, http_major = 0}
Change History (5)
comment:1 by , 11 years ago
comment:2 by , 11 years ago
| Status: | new → accepted |
|---|
It's bad idea to set error_page for 400 Bad Request, and it's known to cause various problems due to lack of otherwise required request properties. It worth making it a bit better though.
comment:5 by , 6 years ago
| Resolution: | → fixed |
|---|---|
| Status: | accepted → closed |
Fix committed, thanks for reporting this.
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При замене на именованный location
error_page 400 @drop; location @drop { }процесс падает
gdb
Program terminated with signal 11, Segmentation fault. #0 0x080a1b06 in ngx_http_index_handler (r=0x972bc68) at src/http/modules/ngx_http_index_module.c:112 112 if (r->uri.data[r->uri.len - 1] != '/') { (gdb) bt #0 0x080a1b06 in ngx_http_index_handler (r=0x972bc68) at src/http/modules/ngx_http_index_module.c:112 #1 0x0807a39b in ngx_http_core_content_phase (r=0x972bc68, ph=0x97377f0) at src/http/ngx_http_core_module.c:1412 #2 0x0807913e in ngx_http_core_run_phases (r=0x972bc68) at src/http/ngx_http_core_module.c:885 #3 0x0807c232 in ngx_http_named_location (r=0x972bc68, name=0xff99f1ec) at src/http/ngx_http_core_module.c:2649 #4 0x08081211 in ngx_http_send_error_page (r=0x972bc68, err_page=0x9735e5c) at src/http/ngx_http_special_response.c:574 #5 0x08080e71 in ngx_http_special_response_handler (r=0x972bc68, error=400) at src/http/ngx_http_special_response.c:416 #6 0x08084ba7 in ngx_http_finalize_request (r=0x972bc68, rc=400) at src/http/ngx_http_request.c:2014 #7 0x08082b98 in ngx_http_process_request_line (rev=0x9751748) at src/http/ngx_http_request.c:952 #8 0x080823b4 in ngx_http_init_request (rev=0x9751748) at src/http/ngx_http_request.c:527 #9 0x0807481e in ngx_epoll_process_events (cycle=0x972c618, timer=60000, flags=1) at src/event/modules/ngx_epoll_module.c:683 #10 0x080673ff in ngx_process_events_and_timers (cycle=0x972c618) at src/event/ngx_event.c:247 #11 0x08072b3b in ngx_worker_process_cycle (cycle=0x972c618, data=0x0) at src/os/unix/ngx_process_cycle.c:807 #12 0x0806fcac in ngx_spawn_process (cycle=0x972c618, proc=0x80729c7 <ngx_worker_process_cycle>, data=0x0, name=0x80b727b "worker process", respawn=-3) at src/os/unix/ngx_process.c:198 #13 0x08071cbe in ngx_start_worker_processes (cycle=0x972c618, n=1, type=-3) at src/os/unix/ngx_process_cycle.c:362 #14 0x0807145b in ngx_master_process_cycle (cycle=0x972c618) at src/os/unix/ngx_process_cycle.c:136 #15 0x0804aa18 in main (argc=3, argv=0xff99f764) at src/core/nginx.c:412 #0 0x080a1b06 in ngx_http_index_handler (r=0x972bc68) at src/http/modules/ngx_http_index_module.c:112 p = 0x7c9d4d95 <Address 0x7c9d4d95 out of bounds> name = 0x972bbb6 "8" len = 8 root = 4151233432 reserve = 0 allocated = 0 rc = 1 path = {len = 21, data = 0xf7721f24 "\024\016"} uri = {len = 4288278760, data = 0xf76ec268 "libcrypto.so.0.9.8"} i = 284 dir_tested = 2 index = 0xf7740858 of = {fd = -143324960, uniq = 17831417647083065177, mtime = -143269900, size = 8446413988, fs_size = -615670427878297316, directio = -615677690667994916, read_ahead = 4148558199, err = 134517923, failed = 0x0, valid = 134516939, min_uses = 4151233672, disable_symlinks_from = 4151446884, disable_symlinks = 0, test_dir = 0, test_only = 1, log = 1, errors = 0, events = 1, is_dir = 0, is_file = 1, is_link = 1, is_exec = 0, is_directio = 1} code = 0xff99f130 e = {ip = 0xf756fc29 "%hu%n:%hu%n:%hu%n", pos = 0xf7721f24 "\024\016", sp = 0xd696910, buf = {len = 4288278684, data = 0xf774ac66 "\213M\340\205\300u3\211\360\213]\364\213u\370\213}\374\211\354]Ít&"}, line = {len = 4151456853, data = 0x804948d "GLIBC_2.0"}, args = 0x972bb54 "4", flushed = 1, skip = 0, quote = 0, is_args = 1, log = 1, status = -143733784, request = 0xff990002} clcf = 0xff99e939 ilcf = 0xff99f100 lcode = 0xff99e928 #1 0x0807a39b in ngx_http_core_content_phase (r=0x972bc68, ph=0x97377f0) at src/http/ngx_http_core_module.c:1412 root = 4294967291 rc = 0 path = {len = 0, data = 0x1 <Address 0x1 out of bounds>} #2 0x0807913e in ngx_http_core_run_phases (r=0x972bc68) at src/http/ngx_http_core_module.c:885 rc = -2 ph = 0x97377a8 cmcf = 0x972d170 #3 0x0807c232 in ngx_http_named_location (r=0x972bc68, name=0xff99f1ec) at src/http/ngx_http_core_module.c:2649 cscf = 0x9735ae0 clcfp = 0x9736770 cmcf = 0x972d170 #4 0x08081211 in ngx_http_send_error_page (r=0x972bc68, err_page=0x9735e5c) at src/http/ngx_http_special_response.c:574 overwrite = -1 uri = {len = 5, data = 0x9735e41 "@drop"} args = {len = 1, data = 0x1 <Address 0x1 out of bounds>} location = 0xff99f1f0 clcf = 0xff99ea18WORKAROUND Работает нормально при такой конфигурации:
error_page 400 @drop; location @drop { return 0; }