patch 8.2.5126: substitute may overrun destination buffer
Problem: Substitute may overrun destination buffer.
Solution: Disallow switching buffers in a substitute expression.
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index fed9330..1185cd1 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -7138,9 +7138,10 @@
#endif
)
{
- // Can't edit another file when "curbuf_lock" is set. Only ":edit"
- // can bring us here, others are stopped earlier.
- if (*eap->arg != NUL && curbuf_locked())
+ // Can't edit another file when "textlock" or "curbuf_lock" is set.
+ // Only ":edit" or ":script" can bring us here, others are stopped
+ // earlier.
+ if (*eap->arg != NUL && text_or_buf_locked())
return;
n = readonlymode;