nginx 1.1.19 *) Security: specially crafted mp4 file might allow to overwrite memory locations in a worker process if the ngx_http_mp4_module was used, potentially resulting in arbitrary code execution (CVE-2012-2089). Thanks to Matthew Daley. *) Bugfix: nginx/Windows might be terminated abnormally. Thanks to Vincent Lee. *) Bugfix: nginx hogged CPU if all servers in an upstream were marked as "backup". *) Bugfix: the "allow" and "deny" directives might be inherited incorrectly if they were used with IPv6 addresses. *) Bugfix: the "modern_browser" and "ancient_browser" directives might be inherited incorrectly. *) Bugfix: timeouts might be handled incorrectly on Solaris/SPARC. *) Bugfix: in the ngx_http_mp4_module.

--- a/src/http/modules/ngx_http_degradation_module.c
+++ b/src/http/modules/ngx_http_degradation_module.c
@@ -126,7 +126,7 @@ ngx_http_degraded(ngx_http_request_t *r)
              * ELF/i386 is loaded at 0x08000000, 128M
              * ELF/amd64 is loaded at 0x00400000, 4M
              *
-             * use a function address to substract the loading address
+             * use a function address to subtract the loading address
              */
 
             sbrk_size = (size_t) sbrk(0) - ((uintptr_t) ngx_palloc & ~0x3FFFFF);