dev-qt/qtgui: remove unused patch(es)

Signed-off-by: Michael Mair-Keimberger <mmk@levelnine.at>
Signed-off-by: Conrad Kostecki <conikost@gentoo.org>

1 files changed, 0 insertions, 228 deletions

diff --git a/dev-qt/qtgui/files/qtgui-5.15.12-CVE-2024-25580.patch b/dev-qt/qtgui/files/qtgui-5.15.12-CVE-2024-25580.patch
deleted file mode 100644
index 41a500c82578..000000000000
--- a/dev-qt/qtgui/files/qtgui-5.15.12-CVE-2024-25580.patch
+++ /dev/null
@@ -1,228 +0,0 @@
-From c8061284095abebebbcd6fea7167477aef44a00c Mon Sep 17 00:00:00 2001
-From: Jonas Karlsson <jonas.karlsson@qt.io>
-Date: Thu, 8 Feb 2024 17:01:05 +0100
-Subject: [PATCH] Improve KTX file reading memory safety
-
-* Use qAddOverflow/qSubOverflow methods for catching additions and
-  subtractions with overflow and handle these scenarios when reading the
-  file.
-* Add 'safeView' method that checks that the byte array view constructed
-  is not out of bounds.
-* Return error if number of levels is higher than what is reasonable.
-* Return error if number of faces is incorrect.
-* Add unit test with invalid KTX file previously causing a segmentation
-  fault.
-
-This fixes CVE-2024-25580.
-
-Fixes: QTBUG-121918
-Pick-to: 6.7 6.6 6.5 6.2 5.15
-Change-Id: Ie0824c32a5921de30cf07c1fc1b49a084e6d07b2
-Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
-Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
-(cherry picked from commit 28ecb523ce8490bff38b251b3df703c72e057519)
----
- src/gui/util/qktxhandler.cpp | 138 +++++++++++++++++++++++++++--------
- src/gui/util/qktxhandler_p.h |   2 +-
- 2 files changed, 110 insertions(+), 30 deletions(-)
-
-diff --git a/src/gui/util/qktxhandler.cpp b/src/gui/util/qktxhandler.cpp
-index 7eda4c46fb..2853e46c3d 100644
---- a/src/gui/util/qktxhandler.cpp
-+++ b/src/gui/util/qktxhandler.cpp
-@@ -73,7 +73,7 @@ struct KTXHeader {
-     quint32 bytesOfKeyValueData;
- };
- 
--static const quint32 headerSize = sizeof(KTXHeader);
-+static constexpr quint32 qktxh_headerSize = sizeof(KTXHeader);
- 
- // Currently unused, declared for future reference
- struct KTXKeyValuePairItem {
-@@ -103,11 +103,36 @@ struct KTXMipmapLevel {
-     */
- };
- 
--bool QKtxHandler::canRead(const QByteArray &suffix, const QByteArray &block)
-+static bool qAddOverflow(quint32 v1, quint32 v2, quint32 *r) {
-+    // unsigned additions are well-defined
-+    *r = v1 + v2;
-+    return v1 > quint32(v1 + v2);
-+}
-+
-+// Returns the nearest multiple of 4 greater than or equal to 'value'
-+static bool nearestMultipleOf4(quint32 value, quint32 *result)
-+{
-+    constexpr quint32 rounding = 4;
-+    *result = 0;
-+    if (qAddOverflow(value, rounding - 1, result))
-+        return true;
-+    *result &= ~(rounding - 1);
-+    return false;
-+}
-+
-+// Returns a slice with prechecked bounds
-+static QByteArray safeSlice(const QByteArray& array, quint32 start, quint32 length)
- {
--    Q_UNUSED(suffix)
-+    quint32 end = 0;
-+    if (qAddOverflow(start, length, &end) || end > quint32(array.length()))
-+        return {};
-+    return QByteArray(array.data() + start, length);
-+}
- 
--    return (qstrncmp(block.constData(), ktxIdentifier, KTX_IDENTIFIER_LENGTH) == 0);
-+bool QKtxHandler::canRead(const QByteArray &suffix, const QByteArray &block)
-+{
-+    Q_UNUSED(suffix);
-+    return block.startsWith(QByteArray::fromRawData(ktxIdentifier, KTX_IDENTIFIER_LENGTH));
- }
- 
- QTextureFileData QKtxHandler::read()
-@@ -115,42 +140,97 @@ QTextureFileData QKtxHandler::read()
-     if (!device())
-         return QTextureFileData();
- 
--    QByteArray buf = device()->readAll();
--    const quint32 dataSize = quint32(buf.size());
--    if (dataSize < headerSize || !canRead(QByteArray(), buf)) {
--        qCDebug(lcQtGuiTextureIO, "Invalid KTX file %s", logName().constData());
-+    const QByteArray buf = device()->readAll();
-+    if (size_t(buf.size()) > std::numeric_limits<quint32>::max()) {
-+        qWarning(lcQtGuiTextureIO, "Too big KTX file %s", logName().constData());
-+        return QTextureFileData();
-+    }
-+
-+    if (!canRead(QByteArray(), buf)) {
-+        qWarning(lcQtGuiTextureIO, "Invalid KTX file %s", logName().constData());
-+        return QTextureFileData();
-+    }
-+
-+    if (buf.size() < qsizetype(qktxh_headerSize)) {
-+        qWarning(lcQtGuiTextureIO, "Invalid KTX header size in %s", logName().constData());
-         return QTextureFileData();
-     }
- 
--    const KTXHeader *header = reinterpret_cast<const KTXHeader *>(buf.constData());
--    if (!checkHeader(*header)) {
--        qCDebug(lcQtGuiTextureIO, "Unsupported KTX file format in %s", logName().constData());
-+    KTXHeader header;
-+    memcpy(&header, buf.data(), qktxh_headerSize);
-+    if (!checkHeader(header)) {
-+        qWarning(lcQtGuiTextureIO, "Unsupported KTX file format in %s", logName().constData());
-         return QTextureFileData();
-     }
- 
-     QTextureFileData texData;
-     texData.setData(buf);
- 
--    texData.setSize(QSize(decode(header->pixelWidth), decode(header->pixelHeight)));
--    texData.setGLFormat(decode(header->glFormat));
--    texData.setGLInternalFormat(decode(header->glInternalFormat));
--    texData.setGLBaseInternalFormat(decode(header->glBaseInternalFormat));
--
--    texData.setNumLevels(decode(header->numberOfMipmapLevels));
--    quint32 offset = headerSize + decode(header->bytesOfKeyValueData);
--    const int maxLevels = qMin(texData.numLevels(), 32);               // Cap iterations in case of corrupt file.
--    for (int i = 0; i < maxLevels; i++) {
--        if (offset + sizeof(KTXMipmapLevel) > dataSize)                // Corrupt file; avoid oob read
--            break;
--        const KTXMipmapLevel *level = reinterpret_cast<const KTXMipmapLevel *>(buf.constData() + offset);
--        quint32 levelLen = decode(level->imageSize);
--        texData.setDataOffset(offset + sizeof(KTXMipmapLevel::imageSize), i);
--        texData.setDataLength(levelLen, i);
--        offset += sizeof(KTXMipmapLevel::imageSize) + levelLen + (3 - ((levelLen + 3) % 4));
-+    texData.setSize(QSize(decode(header.pixelWidth), decode(header.pixelHeight)));
-+    texData.setGLFormat(decode(header.glFormat));
-+    texData.setGLInternalFormat(decode(header.glInternalFormat));
-+    texData.setGLBaseInternalFormat(decode(header.glBaseInternalFormat));
-+
-+    texData.setNumLevels(decode(header.numberOfMipmapLevels));
-+
-+    const quint32 bytesOfKeyValueData = decode(header.bytesOfKeyValueData);
-+    quint32 headerKeyValueSize;
-+    if (qAddOverflow(qktxh_headerSize, bytesOfKeyValueData, &headerKeyValueSize)) {
-+        qWarning(lcQtGuiTextureIO, "Overflow in size of key value data in header of KTX file %s",
-+                 logName().constData());
-+        return QTextureFileData();
-+    }
-+
-+    if (headerKeyValueSize >= quint32(buf.size())) {
-+        qWarning(lcQtGuiTextureIO, "OOB request in KTX file %s", logName().constData());
-+        return QTextureFileData();
-+    }
-+
-+    // Technically, any number of levels is allowed but if the value is bigger than
-+    // what is possible in KTX V2 (and what makes sense) we return an error.
-+    // maxLevels = log2(max(width, height, depth))
-+    const int maxLevels = (sizeof(quint32) * 8)
-+            - qCountLeadingZeroBits(std::max(
-+                    { header.pixelWidth, header.pixelHeight, header.pixelDepth }));
-+
-+    if (texData.numLevels() > maxLevels) {
-+        qWarning(lcQtGuiTextureIO, "Too many levels in KTX file %s", logName().constData());
-+        return QTextureFileData();
-+    }
-+
-+    quint32 offset = headerKeyValueSize;
-+    for (int level = 0; level < texData.numLevels(); level++) {
-+        const auto imageSizeSlice = safeSlice(buf, offset, sizeof(quint32));
-+        if (imageSizeSlice.isEmpty()) {
-+            qWarning(lcQtGuiTextureIO, "OOB request in KTX file %s", logName().constData());
-+            return QTextureFileData();
-+        }
-+
-+        const quint32 imageSize = decode(qFromUnaligned<quint32>(imageSizeSlice.data()));
-+        offset += sizeof(quint32); // overflow checked indirectly above
-+
-+        texData.setDataOffset(offset, level);
-+        texData.setDataLength(imageSize, level);
-+
-+        // Add image data and padding to offset
-+        quint32 padded = 0;
-+        if (nearestMultipleOf4(imageSize, &padded)) {
-+            qWarning(lcQtGuiTextureIO, "Overflow in KTX file %s", logName().constData());
-+            return QTextureFileData();
-+        }
-+
-+        quint32 offsetNext;
-+        if (qAddOverflow(offset, padded, &offsetNext)) {
-+            qWarning(lcQtGuiTextureIO, "OOB request in KTX file %s", logName().constData());
-+            return QTextureFileData();
-+        }
-+
-+        offset = offsetNext;
-     }
- 
-     if (!texData.isValid()) {
--        qCDebug(lcQtGuiTextureIO, "Invalid values in header of KTX file %s", logName().constData());
-+        qWarning(lcQtGuiTextureIO, "Invalid values in header of KTX file %s",
-+                 logName().constData());
-         return QTextureFileData();
-     }
- 
-@@ -191,7 +271,7 @@ bool QKtxHandler::checkHeader(const KTXHeader &header)
-             (decode(header.numberOfFaces) == 1));
- }
- 
--quint32 QKtxHandler::decode(quint32 val)
-+quint32 QKtxHandler::decode(quint32 val) const
- {
-     return inverseEndian ? qbswap<quint32>(val) : val;
- }
-diff --git a/src/gui/util/qktxhandler_p.h b/src/gui/util/qktxhandler_p.h
-index 19f7b0e79a..8da990aaac 100644
---- a/src/gui/util/qktxhandler_p.h
-+++ b/src/gui/util/qktxhandler_p.h
-@@ -68,7 +68,7 @@ public:
- 
- private:
-     bool checkHeader(const KTXHeader &header);
--    quint32 decode(quint32 val);
-+    quint32 decode(quint32 val) const;
- 
-     bool inverseEndian = false;
- };
--- 
-2.43.0
-