vim-patch:8.0.1412: using free memory using setloclist()

Problem:    Using free memory using setloclist(). (Dominique Pelle)
Solution:   Mark location list context as still in use when needed. (Yegappan
            Lakshmanan, closes vim/vim#2462)
https://github.com/vim/vim/commit/12237448499aaeb8c4f2be7a1deda60c0f160627

1 files changed, 10 insertions, 0 deletions

diff --git a/src/nvim/quickfix.c b/src/nvim/quickfix.c
index 9d4fb52dc3..47b8e4a3e0 100644
--- a/src/nvim/quickfix.c
+++ b/src/nvim/quickfix.c
@@ -5166,6 +5166,16 @@ bool set_ref_in_quickfix(int copyID)
         return abort;
       }
     }
+
+    if (IS_LL_WINDOW(win) && (win->w_llist_ref->qf_refcount == 1)) {
+      // In a location list window and none of the other windows is
+      // referring to this location list. Mark the location list
+      // context as still in use.
+      abort = mark_quickfix_ctx(win->w_llist_ref, copyID);
+      if (abort) {
+        return abort;
+      }
+    }
   }
 
   return abort;