vendor/bc: import version 6.2.1vendor/bc/6.2.1

This fixes one bug  in the history editing functions.

4 files changed, 12 insertions, 1 deletions

diff --git a/MEMORY_BUGS.md b/MEMORY_BUGS.md
index 1acf80a0297b..d675b28b342a 100644
--- a/MEMORY_BUGS.md
+++ b/MEMORY_BUGS.md
@@ -11,6 +11,12 @@ right after, which was embarrassing.
 This list is sorted by the first version a bug exists in, not the last it
 existed in.
 
+* In versions `1.1.0` until `6.2.0` (inclusive) of `bc` and `dc`, there is a
+  out of bounds read and write in history when pressing ctrl+r (or any other
+  unused letter) then inserting two characters.
+
+  The first version without this bug is `6.2.1`.
+
 * In versions `3.0.0` until `6.0.1` (inclusive) of `bc` and `dc`, there is a
   double-free on `SIGINT` when using command-line expressions with `-e` and
   `-f`. This was caused by not properly ending a jump series.
diff --git a/NEWS.md b/NEWS.md
index d02436c1d8a9..7adabb8cd6b8 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,9 @@
 # News
 
+## 6.2.1
+
+This is a production release with one bug fix for a memory bug in history.
+
 ## 6.2.0
 
 This is a production release with a new feature and a few bug fixes.
diff --git a/include/version.h b/include/version.h
index d7f8ef5bcc18..a9abf5be6c67 100644
--- a/include/version.h
+++ b/include/version.h
@@ -37,6 +37,6 @@
 #define BC_VERSION_H
 
 /// The current version.
-#define VERSION 6.2.0
+#define VERSION 6.2.1
 
 #endif // BC_VERSION_H
diff --git a/src/history.c b/src/history.c
index b289cf73a24a..472eec55c25d 100644
--- a/src/history.c
+++ b/src/history.c
@@ -1788,6 +1788,7 @@ bc_history_printCtrl(BcHistory* h, unsigned int c)
 	// Pop the string.
 	bc_vec_npop(&h->buf, sizeof(str));
 	bc_vec_pushByte(&h->buf, '\0');
+	h->pos = 0;
 
 	if (c != BC_ACTION_CTRL_C && c != BC_ACTION_CTRL_D)
 	{