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patch 8.2.3902: Vim9: double free with nested :def function

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Problem:    Vim9: double free with nested :def function.
Solution:   Pass "line_to_free" from compile_def_function() and make sure
            cmdlinep is valid.
This commit is contained in:
Bram Moolenaar
2021-12-26 14:23:22 +00:00
parent 71eb3ad579
commit 9c23f9bb5f
6 changed files with 62 additions and 26 deletions
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2
src/proto/userfunc.pro
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@@ -38,7 +38,7 @@ char_u *untrans_function_name(char_u *name);
char_u *get_scriptlocal_funcname(char_u *funcname);
char_u *save_function_name(char_u **name, int *is_global, int skip, int flags, funcdict_T *fudi);
void list_functions(regmatch_T *regmatch);
ufunc_T *define_function(exarg_T *eap, char_u *name_arg);
ufunc_T *define_function(exarg_T *eap, char_u *name_arg, char_u **line_to_free);
void ex_function(exarg_T *eap);
void ex_defcompile(exarg_T *eap);
int eval_fname_script(char_u *p);