[PATCH v7 10/12] http: replace unsafe size_t multiplication with st_mult

["Matthew John Cheetham via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: Matthew John Cheetham <mjcheetham@xxxxxxxxxxx>

Replace direct multiplication of two size_t parameters in curl response
stream handling callback functions with `st_mult` to guard against
overflows.

Signed-off-by: Matthew John Cheetham <mjcheetham@xxxxxxxxxxx>
---
 http.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/http.c b/http.c
index 8a5ba3f4776..a2a80318bb2 100644
--- a/http.c
+++ b/http.c
@@ -146,7 +146,7 @@ static int http_schannel_use_ssl_cainfo;
 
 size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
 {
-	size_t size = eltsize * nmemb;
+	size_t size = st_mult(eltsize, nmemb);
 	struct buffer *buffer = buffer_;
 
 	if (size > buffer->buf.len - buffer->posn)
@@ -176,7 +176,7 @@ curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
 
 size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
 {
-	size_t size = eltsize * nmemb;
+	size_t size = st_mult(eltsize, nmemb);
 	struct strbuf *buffer = buffer_;
 
 	strbuf_add(buffer, ptr, size);
-- 
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