GNU bug report logs - #56369
29.0.50; abort-redisplay: Crash after 'recenter'

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Message #8 received at 56369 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Florian Rommel <mail <at> florommel.de>
Cc: 56369 <at> debbugs.gnu.org
Subject: Re: bug#56369: 29.0.50; abort-redisplay: Crash after 'recenter'
Date: Sun, 03 Jul 2022 19:08:13 +0300

> From: Florian Rommel <mail <at> florommel.de>
> Date: Sun, 03 Jul 2022 17:55:50 +0200
> 
> I get a crash caused by a failed free() [see attached backtrace] when
> running vterm [1] which calls 'recenter' from a loaded module.
> With gdb, in 'safe_free' I see that the address of the to-be-freed
> arguments array (allocated in 'module_funcall') is off by one word.
> 
> I don't know the details of the specpdl stack but I assume that there
> is a missing 'ubind_to' in 'recenter' before an early return.  When I
> add it (see the attached patch) the problem is gone.

Thanks, installed.

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