musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/locale/iconv.c b/src/locale/iconv.c
index 008c93f0..52178950 100644
--- a/src/locale/iconv.c
+++ b/src/locale/iconv.c

@@ -545,6 +545,10 @@ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restri

if (*outb < k) goto toobig;

memcpy(*out, tmp, k);

} else k = wctomb_utf8(*out, c);

+ /* This failure condition should be unreachable, but

+ * is included to prevent decoder bugs from translating

+ * into advancement outside the output buffer range. */

+ if (k>4) goto ilseq;

*out += k;

*outb -= k;

break;