# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1550784606 -3600
# Node ID 98d315176d485f46dfd4a8b8a974cdfb5e6e7115
# Parent  5818bd3610d1ec379e6837283279db007e85b7c6
patch 8.1.0968: crash when using search pattern %Ufffffc23

commit https://github.com/vim/vim/commit/527a2d86fb375fcc7b34e80fc47f4c7126fc12ba
Author: Bram Moolenaar <Bram@vim.org>
Date:   Thu Feb 21 22:28:51 2019 +0100

    patch 8.1.0968: crash when using search pattern \%Ufffffc23

    Problem:    Crash when using search pattern \%Ufffffc23.
    Solution:   Limit character to INT_MAX. (closes https://github.com/vim/vim/issues/4009)

diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -1475,7 +1475,7 @@ nfa_regatom(void)
 			    default:  nr = -1; break;
 			}
 
-			if (nr < 0)
+			if (nr < 0 || nr > INT_MAX)
 			    EMSG2_RET_FAIL(
 			       _("E678: Invalid character after %s%%[dxouU]"),
 				    reg_magic == MAGIC_ALL);
diff --git a/src/testdir/test_search.vim b/src/testdir/test_search.vim
--- a/src/testdir/test_search.vim
+++ b/src/testdir/test_search.vim
@@ -1211,3 +1211,12 @@ func Test_search_Ctrl_L_combining()
   call assert_equal(bufcontent[1], @/)
   call Incsearch_cleanup()
 endfunc
+
+func Test_large_hex_chars()
+  " This used to cause a crash, the character becomes an NFA state.
+  try
+    /\%Ufffffc23
+  catch
+    call assert_match('E678:', v:exception)
+  endtry
+endfunc
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -780,6 +780,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    968,
+/**/
     967,
 /**/
     966,