neovim

commit 6f52bc5dee23e85d07eb7a32d4cbea633f9939ef
parent 0019886a84c7dfdaf452c8a715f26eb87c697b1b
Author: zeertzjq <zeertzjq@outlook.com>
Date:   Wed, 11 May 2022 19:10:18 +0800

vim-patch:8.2.4938: crash when matching buffer with invalid pattern

Problem:    Crash when matching buffer with invalid pattern.
Solution:   Check for NULL regprog.
https://github.com/vim/vim/commit/a59f2dfd0cf9ee1a584d3de5b7c2d47648e79060

Diffstat:
M
src/nvim/buffer.c
 | 
2
+-
M
src/nvim/testdir/test_buffer.vim
 | 
4
++++

2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
@@ -2366,7 +2366,7 @@ static char_u *buflist_match(regmatch_T *rmp, buf_T *buf, bool ignore_case)
 {
   // First try the short file name, then the long file name.
   char_u *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;
diff --git a/src/nvim/testdir/test_buffer.vim b/src/nvim/testdir/test_buffer.vim
@@ -66,6 +66,10 @@ func Test_buf_pattern_invalid()
   vsplit 0000000
   silent! buf [0--]\&\zs*\zs*e
   bwipe!
+
+  vsplit 00000000000000000000000000
+  silent! buf [0--]\&\zs*\zs*e
+  bwipe!
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab