From dd8e79e7fcb8e2f0ef1e47dd1b4f16deb1890eaa Mon Sep 17 00:00:00 2001
From: jfbu <jfbu@free.fr>
Date: Sun, 31 Jan 2021 09:53:09 +0100
Subject: [PATCH 1/2] Fix #8796: define \spx@image@box as a box not a dimen!

This bug was introduced at 2.0 (commit 669f9c3a) (sorry)
---
 sphinx/texinputs/sphinx.sty | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sphinx/texinputs/sphinx.sty b/sphinx/texinputs/sphinx.sty
index 4b637a9ec..08cf14db7 100644
--- a/sphinx/texinputs/sphinx.sty
+++ b/sphinx/texinputs/sphinx.sty
@@ -737,7 +737,7 @@
 \AtBeginDocument{\spx@image@maxheight\textheight}
 
 % box scratch register
-\newdimen\spx@image@box
+\newbox\spx@image@box
 \newcommand*{\sphinxsafeincludegraphics}[2][]{%
     % #1 contains possibly width=, height=, but no scale= since 1.8.4
     \setbox\spx@image@box\hbox{\includegraphics[#1,draft]{#2}}%

From 567cc4fb7b6372d286533b6b9a88f454081ed351 Mon Sep 17 00:00:00 2001
From: jfbu <jfbu@free.fr>
Date: Sun, 31 Jan 2021 09:58:06 +0100
Subject: [PATCH 2/2] Update CHANGES

---
 CHANGES | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGES b/CHANGES
index bbf710f02..b57c28f33 100644
--- a/CHANGES
+++ b/CHANGES
@@ -19,6 +19,8 @@ Bugs fixed
 * #8655: autodoc: Failed to generate document if target module contains an
   object that raises an exception on ``hasattr()``
 * C, ``expr`` role should start symbol lookup in the current scope.
+* #8796: LaTeX: potentially critical low level TeX coding mistake has gone
+  unnoticed so far
 
 Testing
 --------