id summary reporter owner description type status priority milestone component version resolution keywords cc uname nginx_version 690 nginx + mod_security segfaults Igor D'Astolfo "I just made a test with nginx 1.7.9 and mod_security for nginx, following this tutorial: http://www.nginxtips.com/how-to-install-mod_security-on-nginx/ I configured nginx as reverse proxy with mod_security enabled. After few requests nginx was segfaulting, always when serving images. I checked the coredump, this is the output: Program terminated with signal SIGSEGV, Segmentation fault. #0 ngx_http_upstream_copy_allow_ranges (r=0x2678680, h=0x7fff406e6f40, offset=) at src/http/ngx_http_upstream.c:4571 4571 if (r->upstream->conf->force_ranges) { so I tried to set proxy_force_ranges flag in configuration and the segfault went away. Note that if I turn off modsecurity the proxy alone works fine. " defect closed critical 1.7.9 nginx-core 1.7.x invalid proxy reverse mod_security Linux ubuntu 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux "nginx version: nginx/1.7.9 built by gcc 4.8.2 (Ubuntu 4.8.2-19ubuntu1) configure arguments: --add-module=../modsecurity-2.8.0/nginx/modsecurity "