| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Arthur Zakirov <a(dot)zakirov(at)postgrespro(dot)ru> |
| Cc: | exclusion(at)gmail(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #15150: Reading uninitialised value in NISortAffixes (tsearch/spell.c) |
| Date: | 2018-04-12 22:14:03 |
| Message-ID: | 23884.1523571243@sss.pgh.pa.us |
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| Lists: | Postg윈 토토SQL : Postg윈 토토SQL 메일 링리스트 : 2018-04-12 이후 PGSQL-BUGS 22:14 |
Arthur Zakirov <a(dot)zakirov(at)postgrespro(dot)ru> writes:
>> It looks that the following condition in NISortAffixes(IspellDict *Conf)
>> uses uninitialised ptr->issuffix:
>> if (ptr == Conf->CompoundAffix ||
>> ptr->issuffix != (ptr - 1)->issuffix ||
> Yes, you are right. The second condition isn't right. Instead of
> "ptr->issuffix != (ptr - 1)->issuffix" "Affix->type" should be checked
> because we check for uniqueness of affixes.
Yeah, existing code is clearly wrong, patch looks OK, will push.
But I see from the code coverage report that this bit is unexercised
in the regression tests. Any chance of getting a test that covers
this? I'm worried that this means we also lack any coverage of
cases where the CompoundAffix array has more than one entry.
regards, tom lane
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