i965: Don't write beyond allocated memory.

Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

diff --git a/src/mesa/drivers/dri/i965/brw_eu_validate.c b/src/mesa/drivers/dri/i965/brw_eu_validate.c
index eb57962..2de2ea1 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_eu_validate.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_validate.c
@@ -39,7 +39,7 @@ cat(struct string *dest, const struct string src)
 {
    dest->str = realloc(dest->str, dest->len + src.len + 1);
    memcpy(dest->str + dest->len, src.str, src.len);
-   dest->str[dest->len + src.len + 1] = '\0';
+   dest->str[dest->len + src.len] = '\0';
    dest->len = dest->len + src.len;
 }
 #define CAT(dest, src) cat(&dest, (struct string){src, strlen(src)})