From: Todd C. Miller <millert@openbsd.org>
Subject: Re: ksh segfault on 7.9
To: "Kirill A. Korinsky" <kirill@korins.ky>
Cc: OpenBSD tech <tech@openbsd.org>
Date: Fri, 19 Jun 2026 08:13:26 -0600

On Fri, 19 Jun 2026 15:50:20 +0200, Kirill A. Korinsky wrote:

> unwind() may clear source while popping execution environments. The
> interactive shell then expands PS1 before compile() restores source, so
> a prompt command substitution using read -s can dereference NULL while
> saving history. Restore source to the current interactive input source
> before continuing to the prompt loop.
> 
> Ok?

OK millert@

 - todd