Fix infloop when decoding incomplete embedded UTF-8 input

* src/coding.c (decode_coding_iso_2022): Record conversion result for
incomplete data.

1 files changed, 5 insertions, 1 deletions

diff --git a/src/coding.c b/src/coding.c
index bec6e5669b9..d5833a98c23 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -3524,7 +3524,11 @@ decode_coding_iso_2022 (struct coding_system *coding)
           if (c1 == ISO_CODE_ESC)
             {
               if (src + 1 >= src_end)
-                goto no_more_source;
+                {
+                  record_conversion_result
+                    (coding, CODING_RESULT_INSUFFICIENT_SRC);
+                  goto no_more_source;
+                }
               *charbuf++ = ISO_CODE_ESC;
               char_offset++;
               if (src[0] == '%' && src[1] == '@')