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-rw-r--r--lib/http2.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/http2.c b/lib/http2.c
index 7dea16125..25d74c1a1 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -1923,8 +1923,10 @@ static ssize_t http2_send(struct connectdata *conn, int sockindex,
hdbuf = line_end + 2;
- line_end = strstr(hdbuf, "\r\n");
- if(line_end == hdbuf)
+ /* check for next CR, but only within the piece of data left in the given
+ buffer */
+ line_end = memchr(hdbuf, '\r', len - (hdbuf - (char *)mem));
+ if(!line_end || (line_end == hdbuf))
goto fail;
/* header continuation lines are not supported */