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Message-ID: <c36c3414-c418-4db2-a676-2aa90f0d46e2@darold.net>
Date: Thu, 8 Jan 2026 05:45:40 +0100
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User-Agent: Mozilla Thunderbird
Subject: Re: Bug Report: PostgreSQL 16 crashes on ALTER USER CURRENT_USER WITH
 PASSWORD
To: Andrii <andriikrivich@gmail.com>, pgsql-bugs@lists.postgresql.org
References: 
 <CACKVvAv_8-rFsm=hm47uwC6de9WPvs87EEVCVAVrSHrdt2FYrQ@mail.gmail.com>
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From: Gilles Darold <gilles@darold.net>
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Le 06/01/2026 à 14:58, Andrii a écrit :
>
>
>     Summary
>
> PostgreSQL server crashes with a segmentation fault when executing 
> |ALTER USER CURRENT_USER WITH PASSWORD| in PostgreSQL 16.10 and 16.11. 
> The crash results in immediate termination of the backend process and 
> forces a full instance restart.
>

Hi Andril,

I think the problem might comes from the credcheck extension. Please 
upgrade to version 4.3 of credcheck. Several possible crash have fixed 
since v3.0.

Best regards.

-- 
Gilles Darold

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    <div class="moz-cite-prefix">Le 06/01/2026 à 14:58, Andrii a écrit :<br>
    </div>
    <blockquote type="cite"
cite="mid:CACKVvAv_8-rFsm=hm47uwC6de9WPvs87EEVCVAVrSHrdt2FYrQ@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
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        <h2><span style="font-size:small;font-weight:normal">Summary</span></h2>
        <p>PostgreSQL server crashes with a segmentation fault when
          executing <code>ALTER USER CURRENT_USER WITH PASSWORD</code>
          in PostgreSQL 16.10 and 16.11. The crash results in immediate
          termination of the backend process and forces a full instance
          restart.</p>
      </div>
    </blockquote>
    <p><br>
    </p>
    <p>Hi Andril,</p>
    <p>I think the problem might comes from the credcheck extension.
      Please upgrade to version 4.3 of credcheck. Several possible crash
      have fixed since v3.0.</p>
    <p>Best regards.</p>
    <pre class="moz-signature" cols="72">-- 
Gilles Darold
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