patch 8.2.4938: crash when matching buffer with invalid pattern
Problem: Crash when matching buffer with invalid pattern.
Solution: Check for NULL regprog.
diff --git a/src/buffer.c b/src/buffer.c
index 35711f5..dfdb0c4 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2932,7 +2932,7 @@
// First try the short file name, then the long file name.
match = fname_match(rmp, buf->b_sfname, ignore_case);
- if (match == NULL)
+ if (match == NULL && rmp->regprog != NULL)
match = fname_match(rmp, buf->b_ffname, ignore_case);
return match;