File _service:tar_scm:CVE-2022-38784.patch of Package poppler

File _service:tar_scm:CVE-2022-38784.patch of Package poppler (Revision 2783a829f1954ecd18ce39c3de1344ae)

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From d8efdc261ea40e3b3af82ed1d9bc7bcdafa36d67 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid @tsdgeos
Date: Tue, 6 Sep 2022 14:35:28 +0800
Subject: [PATCH] JBIG2Stream: Fix crash on broken file

---
 poppler/JBIG2Stream.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/poppler/JBIG2Stream.cc b/poppler/JBIG2Stream.cc
index 9eddaa6..cb5cf2c 100644
--- a/poppler/JBIG2Stream.cc
+++ b/poppler/JBIG2Stream.cc
@@ -1968,7 +1968,11 @@ void JBIG2Stream::readTextRegionSeg(unsigned int segNum, bool imm, bool lossless
     for (i = 0; i < nRefSegs; ++i) {
         if ((seg = findSegment(refSegs[i]))) {
             if (seg->getType() == jbig2SegSymbolDict) {
-                numSyms += ((JBIG2SymbolDict *)seg)->getSize();
+                const unsigned int segSize = ((JBIG2SymbolDict *)seg)->getSize();
+                if (unlikely(checkedAdd(numSyms, segSize, &numSyms))) {
+                    error(errSyntaxError, getPos(), "Too many symbols in JBIG2 text region");
+                    return;
+                }  
             } else if (seg->getType() == jbig2SegCodeTable) {
                 codeTables.push_back(seg);
             }
-- 
2.33.0