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-rw-r--r--src/http/ngx_http_request.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 2c1ac9566..f6dcd6a56 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1104,7 +1104,9 @@ ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
if (r->host_start) {
r->host_start = new + (r->host_start - old);
- r->host_end = new + (r->host_end - old);
+ if (r->host_end) {
+ r->host_end = new + (r->host_end - old);
+ }
}
if (r->port_start) {