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Security Fix : CVE-2024-45492 in libexpat library. (#10141)

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CVE-2024-45492
This commit is contained in:
KIMDONGYEON00
2025-07-17 16:28:29 +09:00
committed by GitHub
parent 0726819547
commit a729d7ce35
1 changed files with 9 additions and 0 deletions
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9
src/expat/xmlparse.c
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@@ -6333,6 +6333,15 @@ nextScaffoldPart(XML_Parser parser)
int next; int next;
if (!dtd->scaffIndex) { 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)); dtd->scaffIndex = (int *)MALLOC(groupSize * sizeof(int));
if (!dtd->scaffIndex) if (!dtd->scaffIndex)
return -1; return -1;