| From: | David Rowley <dgrowleyml(at)gmail(dot)com> |
|---|---|
| To: | Ranier Vilela <ranier(dot)vf(at)gmail(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Fix out-of-bounds in the function GetCommandTagName |
| Date: | 2024-04-14 23:38:09 |
| Message-ID: | CAApHDvqhEDo77c1PTtUcHr6bL7bqUBvo7YTRJo9TamEqTEYh9A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, 15 Apr 2024 at 11:17, Ranier Vilela <ranier(dot)vf(at)gmail(dot)com> wrote:
> Coverity has reported some out-of-bounds bugs
> related to the GetCommandTagName function.
>
> The size of the array is defined by COMMAND_TAG_NEXTTAG enum,
> whose value currently corresponds to 193.
> Since enum items are evaluated starting at zero, by default.
I think the change makes sense. I don't see any good reason to define
COMMAND_TAG_NEXTTAG or force the compiler's hand when it comes to
sizing that array.
Clearly, Coverity does not understand that we'll never call any of
those GetCommandTag* functions with COMMAND_TAG_NEXTTAG.
> Patch attached.
You seem to have forgotten to attach it, but my comments above were
written with the assumption that the patch is what I've attached here.
David
| Attachment | Content-Type | Size |
|---|---|---|
| get_rid_of_command_tag_nexttag.patch | text/plain | 800 bytes |
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