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patch 9.0.0949: crash when unletting a variable while listing variables

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Problem:    Crash when unletting a variable while listing variables.
Solution:   Disallow changing a hashtable while going over the entries.
            (closes #11435)
This commit is contained in:
Bram Moolenaar
2022-11-25 16:31:51 +00:00
parent c1cf4c9107
commit ef2c325f5e
21 changed files with 143 additions and 68 deletions
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4
src/if_ruby.c
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@@ -1799,7 +1799,7 @@ convert_hash2dict(VALUE key, VALUE val, VALUE arg)
if (di == NULL || ruby_convert_to_vim_value(val, &di->di_tv) != OK
|| dict_add(d, di) != OK)
{
d->dv_hashtab.ht_error = TRUE;
d->dv_hashtab.ht_flags |= HTFLAGS_ERROR;
return ST_STOP;
}
return ST_CONTINUE;
@@ -1879,7 +1879,7 @@ ruby_convert_to_vim_value(VALUE val, typval_T *rettv)
return FAIL;
rb_hash_foreach(val, convert_hash2dict, (VALUE)d);
if (d->dv_hashtab.ht_error)
if (d->dv_hashtab.ht_flags & HTFLAGS_ERROR)
{
dict_unref(d);
return FAIL;