From ab456bc304965d83585cd248284cb36c96927457 Mon Sep 17 00:00:00 2001 From: Sean Dewar Date: Sat, 12 Mar 2022 08:25:28 +0000 Subject: vim-patch:8.2.3779: using freed memory when defining a user command recursively (#17688) Problem: Using freed memory when defining a user command from a user command. Solution: Do not use the command pointer after executing the command. (closes vim/vim#9318) https://github.com/vim/vim/commit/205f29c3e9b895dbaa4f738046da455a93c3812a --- src/nvim/testdir/test_usercommands.vim | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'src/nvim/testdir') diff --git a/src/nvim/testdir/test_usercommands.vim b/src/nvim/testdir/test_usercommands.vim index 967ad85a64..e96e3d94e5 100644 --- a/src/nvim/testdir/test_usercommands.vim +++ b/src/nvim/testdir/test_usercommands.vim @@ -572,4 +572,24 @@ func Test_delcommand_buffer() call assert_equal(0, exists(':Global')) endfunc +func DefCmd(name) + if len(a:name) > 30 + return + endif + exe 'command ' .. a:name .. ' call DefCmd("' .. a:name .. 'x")' + echo a:name + exe a:name +endfunc + +func Test_recursive_define() + call DefCmd('Command') + + let name = 'Command' + while len(name) < 30 + exe 'delcommand ' .. name + let name ..= 'x' + endwhile +endfunc + + " vim: shiftwidth=2 sts=2 expandtab -- cgit