(detect_coding): Don't overflow coding->carryover.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/coding.c b/src/coding.c
index ec57467f023..313e4021486 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -6805,6 +6805,8 @@ decode_coding (coding)
              coding->carryover.  */
           unsigned char *p = coding->carryover;
 
+          if (nbytes > sizeof coding->carryover)
+            nbytes = sizeof coding->carryover;
           coding->carryover_bytes = nbytes;
           while (nbytes-- > 0)
             *p++ = *src++;