nginx 0.7.52 *) Feature: the first native Windows binary release. *) Bugfix: in processing HEAD method while caching. *) Bugfix: in processing the "If-Modified-Since", "If-Range", etc. client request header lines while caching. *) Bugfix: now the "Set-Cookie" and "P3P" header lines are hidden in cacheable responses. *) Bugfix: if nginx was built with the ngx_http_perl_module and with a perl which supports threads, then during a master process exit the message "panic: MUTEX_LOCK" might be issued. *) Bugfix: nginx could not be built --without-http-cache; the bug had appeared in 0.7.48. *) Bugfix: nginx could not be built on platforms different from i386, amd64, sparc, and ppc; the bug had appeared in 0.7.42.

--- a/src/core/ngx_slab.c
+++ b/src/core/ngx_slab.c
@@ -584,9 +584,9 @@ ngx_slab_free_locked(ngx_slab_pool_t *po
 
         ngx_slab_free_pages(pool, &pool->pages[n], size);
 
-        size <<= ngx_pagesize_shift;
+        ngx_slab_junk(p, size << ngx_pagesize_shift);
 
-        goto done;
+        return;
     }
 
     /* not reached */