commit:     6b0845fa8c13b564c6d0b26891c0b043afe0e6bc
Author:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
AuthorDate: Tue Jul 16 23:28:03 2024 +0000
Commit:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
CommitDate: Tue Jul 16 23:28:05 2024 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6b0845fa

dev-qt/qtbase: backport fix for CVE-2024-39936

Still no update from Qt's blog, but given been handled for
Qt5 may as well do it here too at this point.

Bug: https://bugs.gentoo.org/935869
Signed-off-by: Ionen Wolkens <ionen <AT> gentoo.org>

 .../qtbase/files/qtbase-6.7.2-CVE-2024-39936.patch | 200 ++++++++++++
 dev-qt/qtbase/qtbase-6.7.2-r1.ebuild               | 350 +++++++++++++++++++++
 2 files changed, 550 insertions(+)

diff --git a/dev-qt/qtbase/files/qtbase-6.7.2-CVE-2024-39936.patch 
b/dev-qt/qtbase/files/qtbase-6.7.2-CVE-2024-39936.patch
new file mode 100644
index 000000000000..cc6238a55f1b
--- /dev/null
+++ b/dev-qt/qtbase/files/qtbase-6.7.2-CVE-2024-39936.patch
@@ -0,0 +1,200 @@
+https://bugs.gentoo.org/935869
+https://github.com/qt/qtbase/commit/2b1e36e183ce75c224305c7a94457b92f7a5cf58
+From: =?UTF-8?q?M=C3=A5rten=20Nordheim?= <[email protected]>
+Date: Tue, 25 Jun 2024 17:09:35 +0200
+Subject: [PATCH] HTTP2: Delay any communication until encrypted() can be
+ responded to
+
+We have the encrypted() signal that lets users do extra checks on the
+established connection. It is emitted as BlockingQueued, so the HTTP
+thread stalls until it is done emitting. Users can potentially call
+abort() on the QNetworkReply at that point, which is passed as a Queued
+call back to the HTTP thread. That means that any currently queued
+signal emission will be processed before the abort() call is processed.
+
+In the case of HTTP2 it is a little special since it is multiplexed and
+the code is built to start requests as they are available. This means
+that, while the code worked fine for HTTP1, since one connection only
+has one request, it is not working for HTTP2, since we try to send more
+requests in-between the encrypted() signal and the abort() call.
+
+This patch changes the code to delay any communication until the
+encrypted() signal has been emitted and processed, for HTTP2 only.
+It's done by adding a few booleans, both to know that we have to return
+early and so we can keep track of what events arose and what we need to
+resume once enough time has passed that any abort() call must have been
+processed.
+
+Fixes: QTBUG-126610
+--- a/src/network/access/qhttp2protocolhandler.cpp
++++ b/src/network/access/qhttp2protocolhandler.cpp
+@@ -304,10 +304,10 @@
+     }
+ 
+-    if (!prefaceSent && !sendClientPreface())
+-        return false;
+-
+     if (!requests.size())
+         return true;
+ 
++    if (!prefaceSent && !sendClientPreface())
++        return false;
++
+     m_channel->state = QHttpNetworkConnectionChannel::WritingState;
+     // Check what was promised/pushed, maybe we do not have to send a request
+--- a/src/network/access/qhttpnetworkconnectionchannel.cpp
++++ b/src/network/access/qhttpnetworkconnectionchannel.cpp
+@@ -210,4 +210,8 @@
+ {
+     Q_ASSERT(protocolHandler);
++    if (waitingForPotentialAbort) {
++        needInvokeSendRequest = true;
++        return false; // this return value is unused
++    }
+     return protocolHandler->sendRequest();
+ }
+@@ -222,7 +226,6 @@
+ {
+     QMetaObject::invokeMethod(this, [this] {
+-        Q_ASSERT(protocolHandler);
+         if (reply)
+-            protocolHandler->sendRequest();
++            sendRequest();
+     }, Qt::ConnectionType::QueuedConnection);
+ }
+@@ -231,4 +234,8 @@
+ {
+     Q_ASSERT(protocolHandler);
++    if (waitingForPotentialAbort) {
++        needInvokeReceiveReply = true;
++        return;
++    }
+     protocolHandler->_q_receiveReply();
+ }
+@@ -237,4 +244,8 @@
+ {
+     Q_ASSERT(protocolHandler);
++    if (waitingForPotentialAbort) {
++        needInvokeReadyRead = true;
++        return;
++    }
+     protocolHandler->_q_readyRead();
+ }
+@@ -1240,5 +1251,16 @@
+             // Similar to HTTP/1.1 counterpart below:
+             const auto &pair = std::as_const(h2RequestsToSend).first();
++            waitingForPotentialAbort = true;
+             emit pair.second->encrypted();
++
++            // We don't send or handle any received data until any effects 
from
++            // emitting encrypted() have been processed. This is necessary
++            // because the user may have called abort(). We may also abort the
++            // whole connection if the request has been aborted and there is
++            // no more requests to send.
++            QMetaObject::invokeMethod(this,
++                                      
&QHttpNetworkConnectionChannel::checkAndResumeCommunication,
++                                      Qt::QueuedConnection);
++
+             // In case our peer has sent us its settings (window size, max 
concurrent streams etc.)
+             // let's give _q_receiveReply a chance to read them first 
('invokeMethod', QueuedConnection).
+@@ -1258,4 +1280,26 @@
+ }
+ 
++
++void QHttpNetworkConnectionChannel::checkAndResumeCommunication()
++{
++    Q_ASSERT(connection->connectionType() == 
QHttpNetworkConnection::ConnectionTypeHTTP2
++             || connection->connectionType() == 
QHttpNetworkConnection::ConnectionTypeHTTP2Direct);
++
++    // Because HTTP/2 requires that we send a SETTINGS frame as the first 
thing we do, and respond
++    // to a SETTINGS frame with an ACK, we need to delay any handling until 
we can ensure that any
++    // effects from emitting encrypted() have been processed.
++    // This function is called after encrypted() was emitted, so check for 
changes.
++
++    if (!reply && h2RequestsToSend.isEmpty())
++        abort();
++    waitingForPotentialAbort = false;
++    if (needInvokeReadyRead)
++        _q_readyRead();
++    if (needInvokeReceiveReply)
++        _q_receiveReply();
++    if (needInvokeSendRequest)
++        sendRequest();
++}
++
+ void QHttpNetworkConnectionChannel::requeueHttp2Requests()
+ {
+--- a/src/network/access/qhttpnetworkconnectionchannel_p.h
++++ b/src/network/access/qhttpnetworkconnectionchannel_p.h
+@@ -75,4 +75,8 @@
+     bool ssl;
+     bool isInitialized;
++    bool waitingForPotentialAbort = false;
++    bool needInvokeReceiveReply = false;
++    bool needInvokeReadyRead = false;
++    bool needInvokeSendRequest = false;
+     ChannelState state;
+     QHttpNetworkRequest request; // current request, only used for HTTP
+@@ -147,4 +151,6 @@
+     void resendCurrentRequest();
+ 
++    void checkAndResumeCommunication();
++
+     bool isSocketBusy() const;
+     bool isSocketWriting() const;
+--- a/tests/auto/network/access/http2/tst_http2.cpp
++++ b/tests/auto/network/access/http2/tst_http2.cpp
+@@ -107,4 +107,6 @@
+     void duplicateRequestsWithAborts();
+ 
++    void abortOnEncrypted();
++
+ protected slots:
+     // Slots to listen to our in-process server:
+@@ -1480,4 +1482,46 @@
+ }
+ 
++void tst_Http2::abortOnEncrypted()
++{
++#if !QT_CONFIG(ssl)
++    QSKIP("TLS support is needed for this test");
++#else
++    clearHTTP2State();
++    serverPort = 0;
++
++    ServerPtr targetServer(newServer(defaultServerSettings, 
H2Type::h2Direct));
++
++    QMetaObject::invokeMethod(targetServer.data(), "startServer", 
Qt::QueuedConnection);
++    runEventLoop();
++
++    nRequests = 1;
++    nSentRequests = 0;
++
++    const auto url = requestUrl(H2Type::h2Direct);
++    QNetworkRequest request(url);
++    request.setAttribute(QNetworkRequest::Http2DirectAttribute, true);
++
++    std::unique_ptr<QNetworkReply> reply{manager->get(request)};
++    reply->ignoreSslErrors();
++    connect(reply.get(), &QNetworkReply::encrypted, reply.get(), [reply = 
reply.get()](){
++        reply->abort();
++    });
++    connect(reply.get(), &QNetworkReply::errorOccurred, this, 
&tst_Http2::replyFinishedWithError);
++
++    runEventLoop();
++    STOP_ON_FAILURE
++
++    QCOMPARE(nRequests, 0);
++    QCOMPARE(reply->error(), QNetworkReply::OperationCanceledError);
++
++    const bool res = QTest::qWaitFor(
++            [this, server = targetServer.get()]() {
++                return serverGotSettingsACK || prefaceOK || nSentRequests > 0;
++            },
++            500);
++    QVERIFY(!res);
++#endif // QT_CONFIG(ssl)
++}
++
+ void tst_Http2::serverStarted(quint16 port)
+ {

diff --git a/dev-qt/qtbase/qtbase-6.7.2-r1.ebuild 
b/dev-qt/qtbase/qtbase-6.7.2-r1.ebuild
new file mode 100644
index 000000000000..499bf7372d57
--- /dev/null
+++ b/dev-qt/qtbase/qtbase-6.7.2-r1.ebuild
@@ -0,0 +1,350 @@
+# Copyright 2021-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit qt6-build toolchain-funcs
+
+DESCRIPTION="Cross-platform application development framework"
+
+if [[ ${QT6_BUILD_TYPE} == release ]]; then
+       KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~sparc 
~x86"
+fi
+
+declare -A QT6_IUSE=(
+       [global]="+ssl +udev zstd"
+       [core]="icu"
+       [modules]="+concurrent +dbus +gui +network +sql +xml"
+
+       [gui]="
+               +X accessibility eglfs evdev gles2-only +libinput
+               opengl renderdoc tslib vulkan wayland +widgets
+       "
+       [network]="brotli gssapi libproxy sctp"
+       [sql]="mysql oci8 odbc postgres +sqlite"
+       [widgets]="cups gtk"
+
+       [optfeature]="nls" #810802
+)
+IUSE="${QT6_IUSE[*]}"
+REQUIRED_USE="
+       $(
+               printf '%s? ( gui ) ' ${QT6_IUSE[gui]//+/}
+               printf '%s? ( network ) ' ${QT6_IUSE[network]//+/}
+               printf '%s? ( sql ) ' ${QT6_IUSE[sql]//+/}
+               printf '%s? ( gui widgets ) ' ${QT6_IUSE[widgets]//+/}
+       )
+       accessibility? ( dbus )
+       eglfs? ( opengl )
+       gles2-only? ( opengl )
+       gui? ( || ( X eglfs wayland ) )
+       libinput? ( udev )
+       sql? ( || ( ${QT6_IUSE[sql]//+/} ) )
+       test? ( icu sql? ( sqlite ) )
+"
+
+# groups:
+# - global (configure.cmake)
+# - qtcore (src/corelib/configure.cmake)
+# - qtgui (src/gui/configure.cmake)
+# - qtnetwork (src/network/configure.cmake)
+# - qtprintsupport (src/printsupport/configure.cmake) [gui+widgets]
+# - qtsql (src/plugins/sqldrivers/configure.cmake)
+# dlopen: renderdoc
+RDEPEND="
+       sys-libs/zlib:=
+       ssl? ( dev-libs/openssl:= )
+       udev? ( virtual/libudev:= )
+       zstd? ( app-arch/zstd:= )
+
+       app-crypt/libb2
+       dev-libs/double-conversion:=
+       dev-libs/glib:2
+       dev-libs/libpcre2:=[pcre16,unicode(+)]
+       icu? ( dev-libs/icu:= )
+
+       dbus? ( sys-apps/dbus )
+       gui? (
+               media-libs/fontconfig
+               media-libs/freetype:2
+               media-libs/harfbuzz:=
+               media-libs/libjpeg-turbo:=
+               media-libs/libpng:=
+               x11-libs/libdrm
+               x11-libs/libxkbcommon[X?]
+               X? (
+                       x11-libs/libICE
+                       x11-libs/libSM
+                       x11-libs/libX11
+                       x11-libs/libxcb:=
+                       x11-libs/xcb-util-cursor
+                       x11-libs/xcb-util-image
+                       x11-libs/xcb-util-keysyms
+                       x11-libs/xcb-util-renderutil
+                       x11-libs/xcb-util-wm
+               )
+               accessibility? ( app-accessibility/at-spi2-core:2 )
+               eglfs? ( media-libs/mesa[gbm(+)] )
+               evdev? ( sys-libs/mtdev )
+               libinput? ( dev-libs/libinput:= )
+               opengl? (
+                       gles2-only? ( media-libs/libglvnd )
+                       !gles2-only? ( media-libs/libglvnd[X?] )
+               )
+               renderdoc? ( media-gfx/renderdoc )
+               tslib? ( x11-libs/tslib )
+               widgets? (
+                       cups? ( net-print/cups )
+                       gtk? (
+                               x11-libs/gdk-pixbuf:2
+                               x11-libs/gtk+:3
+                               x11-libs/pango
+                       )
+               )
+       )
+       network? (
+               brotli? ( app-arch/brotli:= )
+               gssapi? ( virtual/krb5 )
+               libproxy? ( net-libs/libproxy )
+       )
+       sql? (
+               mysql? ( dev-db/mysql-connector-c:= )
+               oci8? ( dev-db/oracle-instantclient:=[sdk] )
+               odbc? ( dev-db/unixODBC )
+               postgres? ( dev-db/postgresql:* )
+               sqlite? ( dev-db/sqlite:3 )
+       )
+"
+DEPEND="
+       ${RDEPEND}
+       X? ( x11-base/xorg-proto )
+       gui? (
+               vulkan? ( dev-util/vulkan-headers )
+       )
+       network? (
+               sctp? ( net-misc/lksctp-tools )
+       )
+       test? (
+               elibc_musl? ( sys-libs/timezone-data )
+       )
+"
+BDEPEND="zstd? ( app-arch/libarchive[zstd] )" #910392
+PDEPEND="
+       nls? ( ~dev-qt/qttranslations-${PV}:6 )
+       wayland? ( ~dev-qt/qtwayland-${PV}:6 )
+"
+
+PATCHES=(
+       "${FILESDIR}"/${PN}-6.5.2-hppa-forkfd-grow-stack.patch
+       "${FILESDIR}"/${PN}-6.5.2-no-symlink-check.patch
+       "${FILESDIR}"/${PN}-6.6.1-forkfd-childstack-size.patch
+       "${FILESDIR}"/${PN}-6.6.3-gcc14-avx512fp16.patch
+       "${FILESDIR}"/${PN}-6.7.2-CVE-2024-39936.patch
+)
+
+src_prepare() {
+       qt6-build_src_prepare
+
+       if use test; then
+               # test itself has -Werror=strict-aliasing issues, drop for 
simplicity
+               sed -e '/add_subdirectory(qsharedpointer)/d' \
+                       -i tests/auto/corelib/tools/CMakeLists.txt || die
+
+               # workaround for __extendhfxf2 being used for tst_qfloat16.cpp
+               # which is unavailable with compiler-rt (assume used if clang)
+               if tc-is-clang; then
+                       sed -e '/add_subdirectory(qfloat16)/d' \
+                               -i tests/auto/corelib/global/CMakeLists.txt || 
die
+               fi
+       fi
+}
+
+src_configure() {
+       local mycmakeargs=(
+               -DBUILD_WITH_PCH=OFF
+
+               -DINSTALL_ARCHDATADIR="${QT6_ARCHDATADIR}"
+               -DINSTALL_BINDIR="${QT6_BINDIR}"
+               -DINSTALL_DATADIR="${QT6_DATADIR}"
+               -DINSTALL_DOCDIR="${QT6_DOCDIR}"
+               -DINSTALL_EXAMPLESDIR="${QT6_EXAMPLESDIR}"
+               -DINSTALL_INCLUDEDIR="${QT6_HEADERDIR}"
+               -DINSTALL_LIBDIR="${QT6_LIBDIR}"
+               -DINSTALL_LIBEXECDIR="${QT6_LIBEXECDIR}"
+               -DINSTALL_MKSPECSDIR="${QT6_MKSPECSDIR}"
+               -DINSTALL_PLUGINSDIR="${QT6_PLUGINDIR}"
+               -DINSTALL_QMLDIR="${QT6_QMLDIR}"
+               -DINSTALL_SYSCONFDIR="${QT6_SYSCONFDIR}"
+               -DINSTALL_TRANSLATIONSDIR="${QT6_TRANSLATIONDIR}"
+
+               -DQT_UNITY_BUILD=ON # ~30% faster build, affects other dev-qt/* 
too
+
+               -DQT_FEATURE_relocatable=OFF #927691
+               $(qt_feature ssl openssl)
+               $(qt_feature ssl openssl_linked)
+               $(qt_feature udev libudev)
+               $(qt_feature zstd)
+
+               # qtcore
+               $(qt_feature icu)
+
+               # tools
+               -DQT_FEATURE_androiddeployqt=OFF
+
+               # modules
+               $(qt_feature concurrent)
+               $(qt_feature dbus)
+               $(qt_feature gui)
+               $(qt_feature network)
+               $(qt_feature sql)
+               # trivial, and is often needed (sometimes even when not 
building tests)
+               -DQT_FEATURE_testlib=ON
+               $(qt_feature xml)
+       )
+
+       use gui && mycmakeargs+=(
+               $(qt_feature X xcb)
+               $(qt_feature X system_xcb_xinput)
+               $(qt_feature X xkbcommon_x11)
+               $(cmake_use_find_package X X11) # needed for truly no automagic
+               $(qt_feature accessibility accessibility_atspi_bridge)
+               $(qt_feature eglfs)
+               $(qt_feature evdev)
+               $(qt_feature evdev mtdev)
+               $(qt_feature libinput)
+               $(qt_feature renderdoc graphicsframecapture)
+               $(qt_feature tslib)
+               $(qt_feature vulkan)
+               $(qt_feature wayland)
+               $(qt_feature widgets)
+               -DINPUT_opengl=$(usex opengl $(usex gles2-only es2 desktop) no)
+               -DQT_FEATURE_system_textmarkdownreader=OFF # TODO?: package md4c
+       ) && use widgets && mycmakeargs+=(
+               # note: qtprintsupport is enabled w/ gui+widgets regardless of 
USE=cups
+               $(qt_feature cups)
+               $(qt_feature gtk gtk3)
+       )
+
+       use network && mycmakeargs+=(
+               $(qt_feature brotli)
+               $(qt_feature gssapi)
+               $(qt_feature libproxy)
+               $(qt_feature sctp)
+               $(usev test -DQT_SKIP_DOCKER_COMPOSE=ON)
+       )
+
+       use sql && mycmakeargs+=(
+               -DQT_FEATURE_sql_db2=OFF # unpackaged
+               -DQT_FEATURE_sql_ibase=OFF # unpackaged
+               -DQT_FEATURE_sql_mimer=OFF # unpackaged
+               $(qt_feature mysql sql_mysql)
+               $(qt_feature oci8 sql_oci)
+               $(usev oci8 
-DOracle_ROOT="${ESYSROOT}"/usr/$(get_libdir)/oracle/client)
+               $(qt_feature odbc sql_odbc)
+               $(qt_feature postgres sql_psql)
+               $(qt_feature sqlite sql_sqlite)
+               $(qt_feature sqlite system_sqlite)
+       )
+
+       qt6-build_src_configure
+}
+
+src_test() {
+       local -x TZ=UTC
+       local -x LC_TIME=C
+
+       local CMAKE_SKIP_TESTS=(
+               # broken with out-of-source + if qtbase is not already installed
+               tst_moc
+               tst_qmake
+               # similarly broken when relocatable=OFF (bug #927691)
+               tst_qapplication
+               tst_qt_cmake_create
+               tst_uic
+               # needs x11/opengl, we *could* run these but tend to be flaky
+               # when opengl rendering is involved (even if software-only)
+               tst_qopengl{,config,widget,window}
+               tst_qgraphicsview
+               tst_qx11info
+               # fails with network sandbox
+               tst_qdnslookup
+               # fails with sandbox
+               tst_qsharedmemory
+               # typical to lack SCTP support on non-generic kernels
+               tst_qsctpsocket
+               # randomly fails without -j1, and not worth it over this (bug 
#916181)
+               tst_qfiledialog{,2}
+               # may randomly hang+timeout, perhaps related to -j as well
+               tst_qtimer
+               # these can be flaky depending on the environment/toolchain
+               tst_qlogging # backtrace log test can easily vary
+               tst_q{,raw}font # affected by available fonts / settings (bug 
#914737)
+               tst_qprinter # checks system's printers (bug #916216)
+               tst_qhighdpi # may detect users' settings and fail (bug #935364)
+               tst_qstorageinfo # checks mounted filesystems
+               # flaky due to using different test framework and fails with 
USE=-gui
+               tst_selftests
+               # known failing when using clang+glibc+stdc++, needs looking 
into
+               tst_qthread
+               # partially failing on x86 chroots and seemingly(?) harmless 
(dev-qt
+               # revdeps tests pass), skip globally to avoid keywording 
flakiness
+               tst_json
+               tst_qcolorspace
+               tst_qdoublevalidator
+               tst_qglobal
+               tst_qglyphrun
+               tst_qvectornd
+               tst_rcc
+               # similarly, but on armv7 and potentially others (bug #914028)
+               tst_qlineedit
+               tst_qpainter
+               # likewise, known failing on BE arches (bug 
#914033,914371,918878)
+               tst_qimagereader
+               tst_qimagewriter
+               tst_qpluginloader
+               tst_quuid # >=6.6.2 had related fixes, needs retesting
+               # partially broken on llvm-musl, needs looking into but skip to 
have
+               # a baseline for regressions (rest of dev-qt still passes with 
musl)
+               $(usev elibc_musl '
+                       tst_qicoimageformat
+                       tst_qimagereader
+                       tst_qimage
+                       tst_qprocess
+               ')
+               # fails due to hppa's NaN handling, needs looking into (bug 
#914371)
+               $(usev hppa '
+                       tst_qcborvalue
+                       tst_qnumeric
+               ')
+               # bug #914033
+               $(usev sparc '
+                       tst_qbuffer
+                       tst_qprocess
+                       tst_qtconcurrentiteratekernel
+               ')
+               # note: for linux, upstream only really runs+maintains tests 
for amd64
+               # https://doc.qt.io/qt-6/supported-platforms.html
+       )
+
+       qt6-build_src_test
+}
+
+src_install() {
+       qt6-build_src_install
+
+       if use test; then
+               local delete_bins=( # need a better way to handle this
+                       clientserver copier crashingServer 
desktopsettingsaware_helper
+                       echo fileWriterProcess modal_helper nospace 'one space'
+                       paster qcommandlineparser_test_helper 
qfileopeneventexternal
+                       socketprocess syslocaleapp tst_qhashseed_helper 'two 
space s'
+                       write-read-write
+               )
+               local delete=( # sigh
+                       "${D}${QT6_BINDIR}"/test*
+                       "${delete_bins[@]/#/${D}${QT6_BINDIR}/}"
+               )
+               # using -f given not tracking which tests may be skipped or not
+               rm -rf -- "${delete[@]}" || die
+       fi
+}

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