Copied from Debian.

From: Kamil Dudka <kdudka@redhat.com>
Date: Mon, 14 Sep 2015 18:24:56 +0200
Subject: fix infinite loop when extracting empty bzip2 data
Bug-Debian: https://bugs.debian.org/802160
Bug-RedHat: https://bugzilla.redhat.com/show_bug.cgi?id=1260944
Origin: other, https://bugzilla.redhat.com/attachment.cgi?id=1073339

---
 extract.c | 6 ++++++
 1 file changed, 6 insertions(+)

--- a/extract.c
+++ b/extract.c
@@ -2728,6 +2728,12 @@
     int repeated_buf_err;
     bz_stream bstrm;
 
+    if (G.incnt <= 0 && G.csize <= 0L) {
+        /* avoid an infinite loop */
+        Trace((stderr, "UZbunzip2() got empty input\n"));
+        return 2;
+    }
+
 #if (defined(DLL) && !defined(NO_SLIDE_REDIR))
     if (G.redirect_slide)
         wsize = G.redirect_size, redirSlide = G.redirect_buffer;
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<div class='path'>path: <a href='/guix/log/?id=fb3ac987c94e0a77b5c39913dace0b565afc3291'>root</a>/<a href='/guix/log/gnu?id=fb3ac987c94e0a77b5c39913dace0b565afc3291'>gnu</a>/<a href='/guix/log/gnu/services?id=fb3ac987c94e0a77b5c39913dace0b565afc3291'>services</a>/<a href='/guix/log/gnu/services/games.scm?id=fb3ac987c94e0a77b5c39913dace0b565afc3291'>games.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/games.scm?id=fb3ac987c94e0a77b5c39913dace0b565afc3291&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-01-14 07:53:21 -0500'>2023-01-14</span></td><td><a href='/guix/commit/gnu/services/games.scm?id=202ac747e697a2373f0201be490e668695283eb4'>gnu: services: Add joycond-service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/games.scm (joycond-configuration): New configuration type.
(joycond-shepherd-service): New procedure.
(joycond-service-type): New variable.
* doc/guix.texi (Game Services): Document it.
</span></span></td><td>David Thompson</td></tr>
<tr><td><span title='2022-05-01 21:30:36 +0200'>2022-05-01</span></td><td><a href='/guix/commit/gnu/services/games.scm?id=53dbc6fd9a2f476f38e17496457a6b3b06e71687'>services: wesnothd: Use 'least-authority-wrapper'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/games.scm (wesnothd-shepherd-service): Use
'least-authority-wrapper' instead of
'make-forkexec-constructor/container'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-05-01 21:30:36 +0200'>2022-05-01</span></td><td><a href='/guix/commit/gnu/services/games.scm?id=19df5f2423c34e798d1629bb11f2e5e5f29e951e'>services: wesnothd: Grant write access to /var/run/wesnothd.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/games.scm (wesnothd-shepherd-service): Augment 'modules'
field.  Pass #:mappings argument to 'make-forkexec-constructor/container'.
(wesnothd-activation): New variable.
(wesnothd-service-type): Extend ACTIVATION-SERVICE-TYPE.
</span></span></td><td>Ludovic Courtès</td></tr>