vim-patch:8.0.1404: invalid memory access on exit

Problem:    Invalid memory access on exit when autocommands wipe out a buffer.
            (gy741, Dominique Pelle)
Solution:   Check if the buffer is still valid. (closes vim/vim#2449)
https://github.com/vim/vim/commit/606d45ccd8a2ad2956e2729f6135fd79fd2f6d72

1 files changed, 6 insertions, 1 deletions

diff --git a/src/nvim/main.c b/src/nvim/main.c
index 96c2168bca..af7c194edc 100644
--- a/src/nvim/main.c
+++ b/src/nvim/main.c
@@ -605,9 +605,14 @@ void getout(int exitval)
 
         buf_T *buf = wp->w_buffer;
         if (buf_get_changedtick(buf) != -1) {
+          bufref_T bufref;
+
+          set_bufref(&bufref, buf);
           apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname,
                          buf->b_fname, false, buf);
-          buf_set_changedtick(buf, -1);  // note that we did it already
+          if (bufref_valid(&bufref)) {
+            buf_set_changedtick(buf, -1);  // note that we did it already
+          }
           // start all over, autocommands may mess up the lists
           next_tp = first_tabpage;
           break;