From: Filippos Giannakos <philipgian@grnet.gr>
Date: Fri, 14 Sep 2012 13:51:58 +0000 (+0300)
Subject: make xseg resize check allocated size
X-Git-Tag: debian/0.3.1~171
X-Git-Url: https://code.grnet.gr/git/archipelago/commitdiff_plain/8dc198c87c44fc024e53c7277f0c3c692ff53f1d

make xseg resize check allocated size
---

diff --git a/xseg/xseg/xseg.c b/xseg/xseg/xseg.c
index 66469d1..e4102c5 100644
--- a/xseg/xseg/xseg.c
+++ b/xseg/xseg/xseg.c
@@ -1162,6 +1162,9 @@ int xseg_prep_request ( struct xseg* xseg, struct xseg_request *req,
 int xseg_resize_request (struct xseg *xseg, struct xseg_request *req,
 			uint32_t new_targetlen, uint64_t new_datalen)
 {
+	if (req->bufferlen >= new_datalen + new_targetlen)
+		return 0;
+
 	if (req->buffer){
 		void *ptr = XPTR_TAKE(req->buffer, xseg->segment);
 		xseg_free_buffer(xseg, ptr);