Fix fuzzer crash

diff --git a/src/lib/util/size.c b/src/lib/util/size.c
index f4fed21499dc7d975f7d765872856eb5b4e4b9ca..bc4c82a70acdb2724d93291c589125c959133522 100644 (file)
--- a/src/lib/util/size.c
+++ b/src/lib/util/size.c
@@ -66,6 +66,8 @@ fr_slen_t fr_size_from_str(size_t *out, fr_sbuff_t *in)
        *out = 0;
 
        if (fr_sbuff_out(NULL, &size, &our_in) < 0) return fr_sbuff_error(&our_in);
+       if (!fr_sbuff_extend(&our_in)) goto done;
+
        c = tolower(*fr_sbuff_current(&our_in));
 
        /*
@@ -129,6 +131,7 @@ fr_slen_t fr_size_from_str(size_t *out, fr_sbuff_t *in)
                goto overflow;
        }
 
+done:
        *out = (size_t)size;
 
        return fr_sbuff_set(in, &our_in);