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Re: Assert failure on 'list_member_ptr(rel->joininfo, restrictinfo)' - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Assert failure on 'list_member_ptr(rel->joininfo, restrictinfo)'
Date
Msg-id 20231115060421.fnjds7ety4sftfcq@awork3.anarazel.de
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In response to Re: Assert failure on 'list_member_ptr(rel->joininfo, restrictinfo)'  (Alexander Korotkov <aekorotkov@gmail.com>)
Responses Re: Assert failure on 'list_member_ptr(rel->joininfo, restrictinfo)'
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Hi,

On 2023-11-14 14:42:13 +0200, Alexander Korotkov wrote:
> It's possibly dumb option, but what about just removing the assert?

That's not at all an option - the in-place bms_* functions can free their
input. So a dangling pointer to the "old" version is a use-after-free waiting
to happen - you just need a query that actually gets to bitmapsets that are a
bit larger.

Greetings,

Andres

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