[exim-dev] [Bug 2215] SIGSEGV in dns_basic_lookup()

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Author: admin
Date:  
To: exim-dev
Subject: [exim-dev] [Bug 2215] SIGSEGV in dns_basic_lookup()
https://bugs.exim.org/show_bug.cgi?id=2215

--- Comment #2 from Jeremy Harris <jgh146exb@???> ---
Created attachment 1055
--> https://bugs.exim.org/attachment.cgi?id=1055&action=edit
avoid store-release

Appears to be the dnsdb lookup done from dkim ACL that triggers this; the
expansion code releases the memory it used from the operating pool on exit, but
doesn't realise that the DKIM acl is operating on POOL_PERM, and the DNS lookup
does an allocation using that (for failed lookups).

This could affect other types of lookup too, so suggested fix is to disable
the store-release if the operating pool is POOL_PERM.

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