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diff src/testdir/test_visual.vim @ 31998:bb31c1c6d1ad v9.0.1331

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patch 9.0.1331: illegal memory access when using :ball in Visual mode Commit: https://github.com/vim/vim/commit/e1121b139480f53d1b06f84f3e4574048108fa0b Author: Pavel Mayorov <pmayorov@cloudlinux.com> Date: Mon Feb 20 14:35:20 2023 +0000 patch 9.0.1331: illegal memory access when using :ball in Visual mode Problem: Illegal memory access when using :ball in Visual mode. Solution: Stop Visual mode when using :ball. (Pavel Mayorov, closes https://github.com/vim/vim/issues/11923)
author Bram Moolenaar <Bram@vim.org>
date Mon, 20 Feb 2023 15:45:03 +0100
parents df061831a85f
children 8325b9a4c732
line wrap: on
line diff
--- a/src/testdir/test_visual.vim
+++ b/src/testdir/test_visual.vim
@@ -1534,4 +1534,25 @@ func Test_switch_buffer_ends_visual_mode
   exe 'bwipe!' buf2
 endfunc
 
+" Check fix for the heap-based buffer overflow bug found in the function
+" utfc_ptr2len and reported at
+" https://huntr.dev/bounties/ae933869-a1ec-402a-bbea-d51764c6618e
+func Test_heap_buffer_overflow()
+  enew
+  set updatecount=0
+
+  norm R0
+  split other
+  norm R000
+  exe "norm \<C-V>l"
+  ball
+  call assert_equal(getpos("."), getpos("v"))
+  call assert_equal('n', mode())
+  norm zW
+
+  %bwipe!
+  set updatecount&
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab