receive-pack: crash when checking with non-exist HEAD

diff --git a/builtin/apply.c b/builtin/apply.c
index 87439fad118a2671989120dd5993a17b4541e2db..622ee1674af592f4f843577f319c6883a1665f02 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -300,11 +300,13 @@ static int fuzzy_matchlines(const char *s1, size_t n1,
        while ((*last2 == '\r') || (*last2 == '\n'))
                last2--;
 
-       /* skip leading whitespace */
-       while (isspace(*s1) && (s1 <= last1))
-               s1++;
-       while (isspace(*s2) && (s2 <= last2))
-               s2++;
+       /* skip leading whitespaces, if both begin with whitespace */
+       if (s1 <= last1 && s2 <= last2 && isspace(*s1) && isspace(*s2)) {
+               while (isspace(*s1) && (s1 <= last1))
+                       s1++;
+               while (isspace(*s2) && (s2 <= last2))
+                       s2++;
+       }
        /* early return if both lines are empty */
        if ((s1 > last1) && (s2 > last2))
                return 1;
@@ -2867,9 +2869,7 @@ static int apply_binary_fragment(struct image *img, struct patch *patch)
        case BINARY_LITERAL_DEFLATED:
                clear_image(img);
                img->len = fragment->size;
-               img->buf = xmalloc(img->len+1);
-               memcpy(img->buf, fragment->patch, img->len);
-               img->buf[img->len] = '\0';
+               img->buf = xmemdupz(fragment->patch, img->len);
                return 0;
        }
        return -1;