patch 9.0.0212: invalid memory access when compiling :unlet
Problem: Invalid memory access when compiling :unlet.
Solution: Don't read past the end of the line.
diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
index 79f19f0..5484ecb 100644
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -1740,12 +1740,19 @@
lines =<< trim END
def _()
- s:0([], s:0)
lockv
enddef
defcomp
END
- v9.CheckScriptFailure(lines, 'E179', 2)
+ v9.CheckScriptFailure(lines, 'E179', 1)
+
+ lines =<< trim END
+ def T()
+ unlet
+ enddef
+ defcomp
+ END
+ v9.CheckScriptFailure(lines, 'E179', 1)
enddef
def Test_substitute_expr()
diff --git a/src/version.c b/src/version.c
index 3f0bf51..7de7158 100644
--- a/src/version.c
+++ b/src/version.c
@@ -736,6 +736,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 212,
+/**/
211,
/**/
210,
diff --git a/src/vim9cmds.c b/src/vim9cmds.c
index 35a3821..93032d6 100644
--- a/src/vim9cmds.c
+++ b/src/vim9cmds.c
@@ -92,6 +92,12 @@
int
check_vim9_unlet(char_u *name)
{
+ if (*name == NUL)
+ {
+ semsg(_(e_argument_required_for_str), "unlet");
+ return FAIL;
+ }
+
if (name[1] != ':' || vim_strchr((char_u *)"gwtb", *name) == NULL)
{
// "unlet s:var" is allowed in legacy script.