File mozjs78-CVE-2024-45492.patch of Package mozjs78

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File mozjs78-CVE-2024-45492.patch of Package mozjs78

From 9bf0f2c16ee86f644dd1432507edff94c08dc232 Mon Sep 17 00:00:00 2001
From: Sebastian Pipping <sebastian@pipping.org>
Date: Mon, 19 Aug 2024 22:37:16 +0200
Subject: [PATCH] lib: Detect integer overflow in function nextScaffoldPart
References: CVE-2024-45492
References: bsc#1230038
Upstream: Backport from upstream

Reported by TaiYou
---
 expat/lib/xmlparse.c | 9 +++++++++
 1 file changed, 9 insertions(+)

--- firefox-78.15.0/parser/expat/lib/xmlparse.c
+++ firefox-78.15.0_new/parser/expat/lib/xmlparse.c
@@ -6987,6 +6987,15 @@
   int next;
 
   if (!dtd->scaffIndex) {
+    /* Detect and prevent integer overflow.
+     * The preprocessor guard addresses the "always false" warning
+     * from -Wtype-limits on platforms where
+     * sizeof(unsigned int) < sizeof(size_t), e.g. on x86_64. */
+#if UINT_MAX >= SIZE_MAX
+    if (parser->m_groupSize > ((size_t)(-1) / sizeof(int))) {
+      return -1;
+    }
+#endif
     dtd->scaffIndex = (int *)MALLOC(groupSize * sizeof(int));
     if (!dtd->scaffIndex)
       return -1;

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File mozjs78-CVE-2024-45492.patch of Package mozjs78

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