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patch 8.2.0825: def_function() may return pointer that was freed

Problem:    def_function() may return pointer that was freed.
Solution:   Set "fp" to NULL after freeing it.
This commit is contained in:
Bram Moolenaar
2020-05-25 23:29:28 +02:00
parent 1919371b2b
commit a14e697547
2 changed files with 5 additions and 0 deletions

View File

@@ -3140,12 +3140,14 @@ def_function(exarg_T *eap, char_u *name_arg)
if (fudi.fd_di == NULL) if (fudi.fd_di == NULL)
{ {
vim_free(fp); vim_free(fp);
fp = NULL;
goto erret; goto erret;
} }
if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL) if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL)
{ {
vim_free(fudi.fd_di); vim_free(fudi.fd_di);
vim_free(fp); vim_free(fp);
fp = NULL;
goto erret; goto erret;
} }
} }
@@ -3169,6 +3171,7 @@ def_function(exarg_T *eap, char_u *name_arg)
else if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL) else if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL)
{ {
vim_free(fp); vim_free(fp);
fp = NULL;
goto erret; goto erret;
} }
fp->uf_refcount = 1; fp->uf_refcount = 1;

View File

@@ -746,6 +746,8 @@ static char *(features[]) =
static int included_patches[] = static int included_patches[] =
{ /* Add new patch number below this line */ { /* Add new patch number below this line */
/**/
825,
/**/ /**/
824, 824,
/**/ /**/