diff options
-rw-r--r-- | src/corelib/io/qresource.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp index 367cd78d65..b85bca8590 100644 --- a/src/corelib/io/qresource.cpp +++ b/src/corelib/io/qresource.cpp @@ -54,6 +54,7 @@ #include <qplatformdefs.h> #include <qendian.h> #include "private/qabstractfileengine_p.h" +#include "private/qnumeric_p.h" #include "private/qsimd_p.h" #include "private/qsystemerror_p.h" @@ -1502,7 +1503,9 @@ uchar *QResourceFileEnginePrivate::map(qint64 offset, qint64 size, QFile::Memory { Q_Q(QResourceFileEngine); Q_UNUSED(flags); - if (offset < 0 || size <= 0 || !resource.isValid() || offset + size > resource.size()) { + qint64 end; + if (offset < 0 || size <= 0 || !resource.isValid() || + add_overflow(offset, size, &end) || end > resource.size()) { q->setError(QFile::UnspecifiedError, QString()); return 0; } |