Opened 9 years ago
Closed 9 years ago
#791 closed defect (fixed)
Segfault in sub_filter after updating to 1.9.4
| Reported by: | Owned by: | ||
|---|---|---|---|
| Priority: | critical | Milestone: | |
| Component: | nginx-module | Version: | 1.9.x |
| Keywords: | 1.9.4 sub_filter segfault | Cc: | |
| uname -a: | Linux cedartrail 4.2.0-Atom #1 SMP Sat Sep 19 22:06:41 EEST 2015 x86_64 Intel(R) Atom(TM) CPU D2700 @ 2.13GHz GenuineIntel GNU/Linux | ||
| nginx -V: |
nginx version: nginx/1.9.4
built by gcc 4.9.3 (Gentoo 4.9.3 p1.1, pie-0.6.2) built with OpenSSL 1.0.2d 9 Jul 2015 TLS SNI support enabled configure arguments: --prefix=/usr --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error_log --pid-path=/run/nginx.pid --lock-path=/run/lock/nginx.lock --with-cc-opt=-I/usr/include --with-ld-opt=-L/usr/libx32 --http-log-path=/var/log/nginx/access_log --http-client-body-temp-path=/var/lib/nginx/tmp/client --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --with-file-aio --with-debug --with-pcre --with-threads --without-http_memcached_module --without-http_scgi_module --without-http_ssi_module --without-http_split_clients_module --without-http_upstream_ip_hash_module --without-http_userid_module --without-http_uwsgi_module --with-http_geoip_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_spdy_module --with-http_stub_status_module --with-http_sub_module --with-http_realip_module --with-http_ssl_module --without-mail_imap_module --without-mail_pop3_module --without-mail_smtp_module --user='nginx --group=nginx' --with-debug |
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Description
nginx process crashes on every request after updating to 1.9.4
Reverting to 1.9.3 or earlier version fixes the issue.
After little debugging with gdb and core dumps I've found crash occurs in
src/http/modules/ngx_http_sub_filter_module.c:251
ctx->saved.data = ngx_pnalloc(r->pool, ctx->tables->max_match_len - 1);
because ctx->tables is NULL
Attachments (1)
Change History (8)
follow-up: 2 comment:1 by , 9 years ago
comment:2 by , 9 years ago
user nginx nginx;
worker_processes 1;
error_log /var/log/nginx/error_log info;
events {
worker_connections 1024;
use epoll;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
sub_filter_types text/plain text/css application/xml application/x-javascript;
sub_filter_once off;
sub_filter 'oldhost.com/' 'newhost.com/';
server {
listen 127.0.0.1:8080;
server_name localhost;
root /var/www/localhost/htdocs;
}
}
comment:3 by , 9 years ago
cedartrail objs # telnet localhost 8080
Trying 127.0.0.1...
Connected to cedartrail.ixg.lan.
Escape character is ']'.
GET / HTTP/1.0
Host: somehost.com
Connection closed by foreign host.
cedartrail objs # dmesg
[95475.473468] nginx[27820]: segfault at 4 ip 00000000004648c0 sp 00000000ffd26050 error 4 in nginx[400000+a8000]
by , 9 years ago
| Attachment: | sub-main-conf.patch added |
|---|
comment:7 by , 9 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Can you please provide the full nginx configuration causing the crash? Thanks.