From: Robert Luberda <robert@debian.org>
Date: Sat, 19 Nov 2016 08:48:08 +0100
Subject: Fix nullptr dereference (CVE-2016-9296)

Patch taken from https://sourceforge.net/p/p7zip/bugs/185/
This patch file taken from Debian's patch set for p7zip
---
 CPP/7zip/Archive/7z/7zIn.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CPP/7zip/Archive/7z/7zIn.cpp b/CPP/7zip/Archive/7z/7zIn.cpp
index b0c6b98..7c6dde2 100644
--- a/CPP/7zip/Archive/7z/7zIn.cpp
+++ b/CPP/7zip/Archive/7z/7zIn.cpp
@@ -1097,7 +1097,8 @@ HRESULT CInArchive::ReadAndDecodePackedStreams(
       if (CrcCalc(data, unpackSize) != folders.FolderCRCs.Vals[i])
         ThrowIncorrect();
   }
-  HeadersSize += folders.PackPositions[folders.NumPackStreams];
+  if (folders.PackPositions)
+      HeadersSize += folders.PackPositions[folders.NumPackStreams];
   return S_OK;
 }
 
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<tr><td><span title='2023-12-22 00:31:42 +0100'>2023-12-22</span></td><td><a href='/guix/commit/gnu/build/shepherd.scm?id=ca813173894360edef35a5d98878a3135e99e62a'>shepherd: Remove ‘make-forkexec-constructor/container’.</a><span class='msg-avail'>...<span class='msg-tooltip'>This was superseded by ‘least-authority-wrapper’.

* gnu/build/shepherd.scm (read-pid-file/container)
(make-forkexec-constructor/container): Remove.

Change-Id: I6acccdff2609a35807608f865a4d381146113a88
</span></span></td><td>Ludovic Courtès</td></tr>
d to negate command exit status
in place of 'if ...; then false; else true; fi'
</span></span></td><td>Eric Bavier</td></tr>