GNU bug report logs - #45198
28.0.50; Sandbox mode

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: bzg <at> gnu.org, 45198 <at> debbugs.gnu.org, joaotavora <at> gmail.com
Subject: bug#45198: 28.0.50; Sandbox mode
Date: Sat, 12 Dec 2020 16:06:54 -0500

>>  static void
>>  redisplay_internal (void)
>>  {
>> +  /* Not sure if it's important to avoid redisplay inside a sandbox,
>> +     but it seems safer to avoid risking introducing security holes via
>> +     image libraries and such.  */
>> +  ensure_no_sandbox ();
>
> You cannot usefully call error from redisplay.

Hmm... but this is at the entrance to redisplay, so I though it should
still be safe at that point.  If it's a problem we can replace the above
with

    if (emacs_is_sandboxed)
      return;


-- Stefan

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