commit 9d1bed5eccdbb46a26b8a484f5e9163c40e63919
author Christian Brabandt <cb@256bit.org> Mon Jan 20 22:55:57 2025 +0100
committer Christian Brabandt <cb@256bit.org> Mon Jan 20 22:55:57 2025 +0100
tree eafe6cdfb8c452cf4c31c224ff54df824fc70eb5
parent 4cbc54a7431968371c432dc661002cd49741c2ca

patch 9.1.1043: [security]: segfault in win_line()

Problem:  [security]: segfault in win_line()
          (fizz-is-on-the-way)
Solution: Check that ScreenLines is not NULL

Github Advisory:
https://github.com/vim/vim/security/advisories/GHSA-j3g9-wg22-v955

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_crash.vim

diff --git a/src/testdir/test_crash.vim b/src/testdir/test_crash.vim
index bfd04ff..c83ddf2 100644
--- a/src/testdir/test_crash.vim
+++ b/src/testdir/test_crash.vim
@@ -234,6 +234,12 @@
   call term_sendkeys(buf, args)
   call TermWait(buf, 50)
 
+  let file = 'crash/ex_redraw_crash'
+  let cmn_args = "%s -u NONE -i NONE -n -m -X -Z -e -s -S %s -c ':qa!'"
+  let args = printf(cmn_args, vim, file)
+  call term_sendkeys(buf, args)
+  call TermWait(buf, 150)
+
   " clean up
   exe buf .. "bw!"
   bw!