GNU bug report logs - #75056
31.0.50; tty-child-frames with server / multiple clients possible hangs

Previous Next

Package: emacs;

Reported by: Len Trigg <lenbok <at> gmail.com>

Date: Tue, 24 Dec 2024 05:44:02 UTC

Severity: normal

Found in version 31.0.50

Full log

View this message in rfc822 format

From: Eli Zaretskii <eliz <at> gnu.org>
To: Len Trigg <lenbok <at> gmail.com>
Cc: gerd.moellmann <at> gmail.com, 75056 <at> debbugs.gnu.org
Subject: bug#75056: 31.0.50; tty-child-frames with server / multiple clients possible hangs
Date: Thu, 23 Jan 2025 22:00:31 +0200

> From: Len Trigg <lenbok <at> gmail.com>
> Date: Fri, 24 Jan 2025 08:31:10 +1300
> Cc: Eli Zaretskii <eliz <at> gnu.org>, 75056 <at> debbugs.gnu.org
> 
> On Fri, 24 Jan 2025 at 06:34, Gerd Möllmann <gerd.moellmann <at> gmail.com> wrote:
> 
>  Eli Zaretskii <eliz <at> gnu.org> writes:
> 
>  > What is the value of z_order?
> 
>  Len, can you please print
> 
>    p root->visible
> 
> (gdb) p root->visible
> $1 = 0
> (gdb) p z_order
> $2 = (Lisp_Object) 0x0

So the crash is because we don't verify z_order is a cons cell before
we take its cdr.
This bug report was last modified 110 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.