From f1843c0035769637daab88aa476753ce54d41387 Mon Sep 17 00:00:00 2001
From: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date: Thu, 7 Feb 2019 22:43:38 +0100
Subject: vim-patch:8.1.0677: look-behind match may use the wrong line number

crash reported in #9584

Problem:    Look-behind match may use the wrong line number. (Dominique Pelle)
Solution:   Use the line number in regsave instead of the one in behind_pos,
            we may be looking at the previous line. (closes vim/vim#3749)
https://github.com/vim/vim/commit/866f3558141aa68862aa2fedbb7747bf2365e838
---
 src/nvim/regexp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/nvim/regexp.c b/src/nvim/regexp.c
index d62a009fbc..0b9e1cfdec 100644
--- a/src/nvim/regexp.c
+++ b/src/nvim/regexp.c
@@ -4920,7 +4920,7 @@ regmatch (
               }
             } else {
               const char_u *const line =
-                  reg_getline(behind_pos.rs_u.pos.lnum);
+                  reg_getline(rp->rs_un.regsave.rs_u.pos.lnum);
 
               rp->rs_un.regsave.rs_u.pos.col -=
                   utf_head_off(line,
-- 
cgit