| From: | PG Bug reporting form <noreply(at)postgresql(dot)org> |
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| To: | pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Cc: | dan-eli(at)mail(dot)ru |
| Subject: | BUG #18798: /src/interfaces/ecpg/preproc/type.c possible NULL deref |
| Date: | 2025-02-06 11:43:44 |
| Message-ID: | 18798-456de8a9c1ea053f@postgresql.org |
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| Lists: | pgsql-bugs |
The following bug has been logged on the website:
Bug reference: 18798
Logged by: Daniel Elishakov
Email address: dan-eli(at)mail(dot)ru
PostgreSQL version: 16.6
Operating system: ubuntu 20.04
Description:
After having been compared to a NULL value at type.c:267, pointer 'ind_name'
is passed as 2nd parameter in call to function 'ECPGdump_a_simple' at
type.c:398, where it is dereferenced at type.c:423. Looks like there is
inconsistency with 'ind_name' and 'int_type' checks. In one place both are
checked. In other place only the second one is checked. It's possible that
when the second is not NULL the first is also not NULL. If this is so then
the problem is not real. But it's hard to prove this. In any case the code
needs to be made more clear.
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