From: Bart Schaefer <schaefer@brasslantern.com>
To: "Marcus Müller" <marcus_zsh@hostalia.de>
Cc: Philippe Troin <phil@fifi.org>, zsh-workers@zsh.org
Subject: Re: [Bug] modules zsh/tcp, zsh/zftp unloadable, probably affecting most modern Linuxes
Date: Mon, 5 Jun 2023 13:07:40 -0700 [thread overview]
Message-ID: <CAH+w=7b3L+ZQ5P6xnxsJ-gG_Mx74jpn-UkTZt8P3ZYj1xc1bZg@mail.gmail.com> (raw)
In-Reply-To: <227fe72b-7441-935c-55a7-421945da54b3@hostalia.de>
On Mon, Jun 5, 2023 at 12:35 PM Marcus Müller <marcus_zsh@hostalia.de> wrote:
>
> Ah, so we're exporting and thus overwriting a symbol that overwrites a
> pointer by the name of an existing libc function with a "overrides
> potentially unowned memory" one?
As I understand it that symbol will only be defined by tcp.c if it's
not available from libc or other linked library, so it's not actually
overwriting an identically-named symbol.
Or at least that's the intention, the #ifdef's that are meant to
accomplish it may need refinement for more recent library changes.
next prev parent reply other threads:[~2023-06-05 20:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-04 13:51 Marcus Müller
2023-06-04 20:37 ` Marcus Müller
2023-06-04 21:17 ` Philippe Troin
2023-06-05 19:35 ` Marcus Müller
2023-06-05 20:07 ` Bart Schaefer [this message]
2023-06-06 6:42 ` Jun T
2023-06-06 9:05 ` Peter Stephenson
2023-06-06 14:38 ` Jun. T
2023-06-06 15:01 ` Peter Stephenson
2023-06-06 16:37 ` Philippe Troin
2023-06-06 17:54 ` Mikael Magnusson
2023-06-07 2:05 ` Jun T
2023-06-07 2:35 ` Jun T
2023-06-07 14:40 ` Jun. T
2023-06-23 13:41 ` Jun. T
2023-06-07 9:25 ` Marcus Müller
2023-06-04 22:41 ` Axel Beckert
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