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='2023-07-13 19:00:02 +0200'>2023-07-13</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=cefcf0fb04c475c2c016e856f2b60a7c2ecdfcf5'>system: hurd: Add netdde to %base-packages/hurd.</a><span class='msg-avail'>...</span></td><td>Janneke Nieuwenhuizen</td></tr>
<tr><td><span title='2023-06-17 14:38:32 +0200'>2023-06-17</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=ff690faf66d8f37ee6b679fcb7cf37e369624ee3'>gnu: Use target-hurd?, system-hurd? instead of hurd-target?, hurd-system?.</a><span class='msg-avail'>...</span></td><td>Janneke Nieuwenhuizen</td></tr>
<tr><td><span title='2023-03-30 12:44:20 +0200'>2023-03-30</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=fda221c469f8d31cdc22bc5053e6b19017764c62'>system: hurd: Use shepherd-0.8 in the package list.</a><span class='msg-avail'>...</span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2023-03-03 17:55:32 +0100'>2023-03-03</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=6edacf249110ce9e59dc44f330d7f03ecd7c60d8'>services: base: Deprecate 'syslog-service' procedure.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2022-11-28 11:19:31 +0100'>2022-11-28</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=e3c6575ee93741a43003cd1aa4663151dd90b9f5'>system: hurd: Create more ttys.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-04-08 18:14:35 +0200'>2022-04-08</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=df473496edefbb88eaf2fbff7dda2665eb21b4d1'>system: hurd: Fix bogus 'initrd-modules' field.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-03-09 23:38:18 +0100'>2022-03-09</span></td><td><a href='/guix/commit/gnu/system/hurd.scm?id=a208a4e923797dcaf6d63dbf2403714d62de8e5a'>system: hurd: Move the Shepherd before the Hurd in %BASE-PACKAGES/HURD.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>