vim-patch:7.4.320

Problem:    Possible crash when an BufLeave autocommand deletes the buffer.
Solution:   Check for the window pointer being valid.  Postpone freeing the
            window until autocommands are done. (Yasuhiro Matsumoto)

https://code.google.com/p/vim/source/detail?r=v7-4-320

1 files changed, 7 insertions, 1 deletions

diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c
index 97daa035f8..72dd7170ce 100644
--- a/src/nvim/fileio.c
+++ b/src/nvim/fileio.c
@@ -6754,7 +6754,8 @@ apply_autocmds_group (
   --nesting;            /* see matching increment above */
 
   // When stopping to execute autocommands, restore the search patterns and
-  // the redo buffer.  Free buffers in the au_pending_free_buf list.
+  // the redo buffer. Free any buffers in the au_pending_free_buf list and
+  // free any windows in the au_pending_free_win list.
   if (!autocmd_busy) {
     restore_search_patterns();
     restoreRedobuff();
@@ -6764,6 +6765,11 @@ apply_autocmds_group (
       free(au_pending_free_buf);
       au_pending_free_buf = b;
     }
+    while (au_pending_free_win != NULL) {
+      win_T *w = au_pending_free_win->w_next;
+      free(au_pending_free_win);
+      au_pending_free_win = w;
+    }
   }
 
   /*