From 38386bd482c0a8102a79958cb3eddcb97a167ca3 Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Fri, 9 Mar 2018 17:39:40 +1100
Subject: [PATCH] CVE-2017-8842 Fix divide-by-zero in bufRead::get

---
 libzpaq/libzpaq.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libzpaq/libzpaq.h b/libzpaq/libzpaq.h
index 93387da..cbe211d 100644
--- a/libzpaq/libzpaq.h
+++ b/libzpaq/libzpaq.h
@@ -465,7 +465,8 @@ struct bufRead: public libzpaq::Reader {
 
 	int get() {
 		if (progress && !(*s_len % 128)) {
-			int pct = (total_len - *s_len) * 100 / total_len;
+			int pct = (total_len > 0) ?
+				(total_len - *s_len) * 100 / total_len : 100;
 
 			if (pct / 10 != *last_pct / 10) {
 				int i;
b2cfe4ac6'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>refs</a><a class='active' href='/guix/log/gnu/packages/patches/glib-CVE-2021-27219-11.patch'>log</a><a href='/guix/tree/gnu/packages/patches/glib-CVE-2021-27219-11.patch?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>tree</a><a href='/guix/commit/gnu/packages/patches/glib-CVE-2021-27219-11.patch?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>commit</a><a href='/guix/diff/gnu/packages/patches/glib-CVE-2021-27219-11.patch?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/patches/glib-CVE-2021-27219-11.patch'>
<input type='hidden' name='id' value='069399ee9dbf75b7c89583f03346a63b2cfe4ac6'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>root</a>/<a href='/guix/log/gnu?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>gnu</a>/<a href='/guix/log/gnu/packages?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>packages</a>/<a href='/guix/log/gnu/packages/patches?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>patches</a>/<a href='/guix/log/gnu/packages/patches/glib-CVE-2021-27219-11.patch?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6'>glib-CVE-2021-27219-11.patch</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/packages/patches/glib-CVE-2021-27219-11.patch?id=069399ee9dbf75b7c89583f03346a63b2cfe4ac6&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-03-11 06:21:13 -0500'>2021-03-11</span></td><td><a href='/guix/commit/gnu/packages/patches/glib-CVE-2021-27219-11.patch?id=21b3b755151028647081fe96d2992b3743531d71'>gnu: glib: Fix CVE-2021-27218 and CVE-2021-27219.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/patches/glib-CVE-2021-27218.patch,
gnu/packages/patches/glib-CVE-2021-27219-01.patch,
gnu/packages/patches/glib-CVE-2021-27219-02.patch,
gnu/packages/patches/glib-CVE-2021-27219-03.patch,
gnu/packages/patches/glib-CVE-2021-27219-04.patch,
gnu/packages/patches/glib-CVE-2021-27219-05.patch,
gnu/packages/patches/glib-CVE-2021-27219-06.patch,
gnu/packages/patches/glib-CVE-2021-27219-07.patch,
gnu/packages/patches/glib-CVE-2021-27219-08.patch,
gnu/packages/patches/glib-CVE-2021-27219-09.patch,
gnu/packages/patches/glib-CVE-2021-27219-10.patch,
gnu/packages/patches/glib-CVE-2021-27219-11.patch,
gnu/packages/patches/glib-CVE-2021-27219-12.patch,
gnu/packages/patches/glib-CVE-2021-27219-13.patch,
gnu/packages/patches/glib-CVE-2021-27219-14.patch,
gnu/packages/patches/glib-CVE-2021-27219-15.patch,
gnu/packages/patches/glib-CVE-2021-27219-16.patch,
gnu/packages/patches/glib-CVE-2021-27219-17.patch,
gnu/packages/patches/glib-CVE-2021-27219-18.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/glib.scm (glib)[replacement]: New field.
(glib/fixed): New variable.
</span></span></td><td>Mark H Weaver</td></tr>