fecdec: Return an error on zero size slices.

[paraslash.git] / fecdec_filter.c

diff --git a/fecdec_filter.c b/fecdec_filter.c
index 794add49ec42d07c04ea826e36f8f77b80a9dad6..a7d1875c271e8f8889d20eeff62a119ce11380d5 100644 (file)
--- a/fecdec_filter.c
+++ b/fecdec_filter.c
@@ -358,7 +358,7 @@ static ssize_t fecdec(char *buf, size_t len, struct filter_node *fn)
        ret = read_fec_header(buf, len, &h);
        if (ret <= 0)
                return ret;
-       if (h.slice_bytes > fn->bufsize)
+       if (!h.slice_bytes || h.slice_bytes > fn->bufsize)
                return -E_BAD_SLICE_SIZE;
        if (h.slice_num > h.slices_per_group)
                return -E_BAD_SLICE_NUM;