[neon/kde/kate/Neon/release] debian/patches: CVE-2022-23853

Jonathan Esk-Riddell null at kde.org
Mon Jan 31 15:27:08 GMT 2022


Git commit 115bcfcf534f30c76c9bfa1edca9e33f265833ca by Jonathan Esk-Riddell.
Committed on 31/01/2022 at 15:26.
Pushed by jriddell into branch 'Neon/release'.

CVE-2022-23853

A  +73   -0    debian/patches/361dd43e42994829dbdb35e78fb7698d27cbb0e2.diff
A  +58   -0    debian/patches/6fc3bf6e5bd540e842e32c4a959c2158c8573be5.diff
A  +882  -0    debian/patches/7e08a58fb50d28ba96aedd5f5cd79a9479b4a0ad.diff
A  +22   -0    debian/patches/92a9c65e30b4b63b8b116eb5c8dcb1e1a2d867bc.diff
A  +108  -0    debian/patches/c5d66f3b70ae4778d6162564309aee95f643e7c9.diff
A  +5    -0    debian/patches/series

https://invent.kde.org/neon/kde/kate/commit/115bcfcf534f30c76c9bfa1edca9e33f265833ca

diff --git a/debian/patches/361dd43e42994829dbdb35e78fb7698d27cbb0e2.diff b/debian/patches/361dd43e42994829dbdb35e78fb7698d27cbb0e2.diff
new file mode 100644
index 0000000..aee97fe
--- /dev/null
+++ b/debian/patches/361dd43e42994829dbdb35e78fb7698d27cbb0e2.diff
@@ -0,0 +1,73 @@
+diff --git a/addons/lspclient/lspclientprotocol.h b/addons/lspclient/lspclientprotocol.h
+index 0fb7f4485e6a6e819e1065882f021cb2bb2649d8..9de0ec5115567975ad57f92adebeb0ebe35d4c0e 100644
+--- a/addons/lspclient/lspclientprotocol.h
++++ b/addons/lspclient/lspclientprotocol.h
+@@ -21,6 +21,8 @@
+ #include <KTextEditor/Cursor>
+ #include <KTextEditor/Range>
+ 
++#include <optional>
++
+ // Following types roughly follow the types/interfaces as defined in LSP protocol spec
+ // although some deviation may arise where it has been deemed useful
+ // Moreover, to avoid introducing a custom 'optional' type, absence of an optional
+@@ -51,6 +53,16 @@ struct LSPResponseError {
+ 
+ enum class LSPDocumentSyncKind { None = 0, Full = 1, Incremental = 2 };
+ 
++struct LSPSaveOptions {
++    bool includeText = false;
++};
++
++// only used parts for now
++struct LSPTextDocumentSyncOptions {
++    LSPDocumentSyncKind change = LSPDocumentSyncKind::None;
++    std::optional<LSPSaveOptions> save;
++};
++
+ struct LSPCompletionOptions {
+     bool provider = false;
+     bool resolveProvider = false;
+@@ -81,7 +93,7 @@ struct LSPWorkspaceFoldersServerCapabilities {
+ };
+ 
+ struct LSPServerCapabilities {
+-    LSPDocumentSyncKind textDocumentSync = LSPDocumentSyncKind::None;
++    LSPTextDocumentSyncOptions textDocumentSync;
+     bool hoverProvider = false;
+     LSPCompletionOptions completionProvider;
+     LSPSignatureHelpOptions signatureHelpProvider;
+diff --git a/addons/lspclient/lspclientserver.cpp b/addons/lspclient/lspclientserver.cpp
+index 8739d46c918d0d2b5bdff9f997434f13a0277404..a7094fde22e11ff8a138f7a634a90a45a2cbf38e 100644
+--- a/addons/lspclient/lspclientserver.cpp
++++ b/addons/lspclient/lspclientserver.cpp
+@@ -344,8 +344,15 @@ static void from_json(LSPServerCapabilities &caps, const QJsonObject &json)
+     };
+ 
+     auto sync = json.value(QStringLiteral("textDocumentSync"));
+-    caps.textDocumentSync = static_cast<LSPDocumentSyncKind>(
++    caps.textDocumentSync.change = static_cast<LSPDocumentSyncKind>(
+         (sync.isObject() ? sync.toObject().value(QStringLiteral("change")) : sync).toInt(static_cast<int>(LSPDocumentSyncKind::None)));
++    if (sync.isObject()) {
++        auto syncObject = sync.toObject();
++        auto save = syncObject.value(QStringLiteral("save"));
++        if (save.isObject() || save.toBool()) {
++            caps.textDocumentSync.save = {save.toObject().value(QStringLiteral("includeText")).toBool()};
++        }
++    }
+     caps.hoverProvider = toBoolOrObject(json.value(QStringLiteral("hoverProvider")));
+     from_json(caps.completionProvider, json.value(QStringLiteral("completionProvider")));
+     from_json(caps.signatureHelpProvider, json.value(QStringLiteral("signatureHelpProvider")));
+diff --git a/addons/lspclient/lspclientservermanager.cpp b/addons/lspclient/lspclientservermanager.cpp
+index 1fbcf928f45337d564253e14870bc339a1155d2a..1e03801ea0609a2accf6e3fc181c0f1e627fe1bd 100644
+--- a/addons/lspclient/lspclientservermanager.cpp
++++ b/addons/lspclient/lspclientservermanager.cpp
+@@ -931,7 +931,7 @@ private:
+         auto it = m_docs.find(doc);
+         if (it != m_docs.end() && it->server) {
+             const auto &caps = it->server->capabilities();
+-            if (caps.textDocumentSync == LSPDocumentSyncKind::Incremental) {
++            if (caps.textDocumentSync.change == LSPDocumentSyncKind::Incremental) {
+                 return &(*it);
+             }
+         }
diff --git a/debian/patches/6fc3bf6e5bd540e842e32c4a959c2158c8573be5.diff b/debian/patches/6fc3bf6e5bd540e842e32c4a959c2158c8573be5.diff
new file mode 100644
index 0000000..5ca3c0f
--- /dev/null
+++ b/debian/patches/6fc3bf6e5bd540e842e32c4a959c2158c8573be5.diff
@@ -0,0 +1,58 @@
+diff --git a/addons/lspclient/lspclientserver.cpp b/addons/lspclient/lspclientserver.cpp
+index a7094fde22e11ff8a138f7a634a90a45a2cbf38e..9fb5844cdd456b91978ebfc9261b067c0921140b 100644
+--- a/addons/lspclient/lspclientserver.cpp
++++ b/addons/lspclient/lspclientserver.cpp
+@@ -1255,7 +1255,8 @@ private:
+                                             {QStringLiteral("documentSymbol"), QJsonObject{{QStringLiteral("hierarchicalDocumentSymbolSupport"), true}} },
+                                             {QStringLiteral("publishDiagnostics"), QJsonObject{{QStringLiteral("relatedInformation"), true}}},
+                                             {QStringLiteral("codeAction"), codeAction},
+-                                            {QStringLiteral("semanticTokens"), semanticTokens}
++                                            {QStringLiteral("semanticTokens"), semanticTokens},
++                                            {QStringLiteral("synchronization"), QJsonObject{{QStringLiteral("didSave"), true}}},
+                                         },
+                                   },
+                                   {QStringLiteral("window"),
+@@ -1475,7 +1476,9 @@ public:
+     void didSave(const QUrl &document, const QString &text)
+     {
+         auto params = textDocumentParams(document);
+-        params[QStringLiteral("text")] = text;
++        if (!text.isNull()) {
++            params[QStringLiteral("text")] = text;
++        }
+         send(init_request(QStringLiteral("textDocument/didSave"), params));
+     }
+ 
+diff --git a/addons/lspclient/lspclientservermanager.cpp b/addons/lspclient/lspclientservermanager.cpp
+index 1e03801ea0609a2accf6e3fc181c0f1e627fe1bd..551926e23175560f912e9a9de86f1a8cf58e7e05 100644
+--- a/addons/lspclient/lspclientservermanager.cpp
++++ b/addons/lspclient/lspclientservermanager.cpp
+@@ -833,6 +833,7 @@ private:
+             connect(doc, &KTextEditor::Document::aboutToClose, this, &self_type::untrack, Qt::UniqueConnection);
+             connect(doc, &KTextEditor::Document::destroyed, this, &self_type::untrack, Qt::UniqueConnection);
+             connect(doc, &KTextEditor::Document::textChanged, this, &self_type::onTextChanged, Qt::UniqueConnection);
++            connect(doc, &KTextEditor::Document::documentSavedOrUploaded, this, &self_type::onDocumentSaved, Qt::UniqueConnection);
+             // in case of incremental change
+             connect(doc, &KTextEditor::Document::textInserted, this, &self_type::onTextInserted, Qt::UniqueConnection);
+             connect(doc, &KTextEditor::Document::textRemoved, this, &self_type::onTextRemoved, Qt::UniqueConnection);
+@@ -976,6 +977,20 @@ private:
+         }
+     }
+ 
++    void onDocumentSaved(KTextEditor::Document *doc, bool saveAs)
++    {
++        if (!saveAs) {
++            auto it = m_docs.find(doc);
++            if (it != m_docs.end() && it->server) {
++                auto server = it->server;
++                const auto &saveOptions = server->capabilities().textDocumentSync.save;
++                if (saveOptions) {
++                    server->didSave(doc->url(), saveOptions->includeText ? doc->text() : QString());
++                }
++            }
++        }
++    }
++
+     void onMessage(bool isLog, const LSPLogMessageParams &params)
+     {
+         // determine server description
diff --git a/debian/patches/7e08a58fb50d28ba96aedd5f5cd79a9479b4a0ad.diff b/debian/patches/7e08a58fb50d28ba96aedd5f5cd79a9479b4a0ad.diff
new file mode 100644
index 0000000..2bd8cd1
--- /dev/null
+++ b/debian/patches/7e08a58fb50d28ba96aedd5f5cd79a9479b4a0ad.diff
@@ -0,0 +1,882 @@
+diff --git a/addons/compiler-explorer/compiledbreader.cpp b/addons/compiler-explorer/compiledbreader.cpp
+index 74e83638e356f9b9820be1ea2e9d0c0a02201e05..ab9ebc48373b974ade28c34a2b4a51ff58d0656d 100644
+--- a/addons/compiler-explorer/compiledbreader.cpp
++++ b/addons/compiler-explorer/compiledbreader.cpp
+@@ -21,7 +21,9 @@ std::optional<QString> getDotGitPath(const QString &repo)
+ {
+     /* This call is intentionally blocking because we need git path for everything else */
+     QProcess git;
+-    setupGitProcess(git, repo, {QStringLiteral("rev-parse"), QStringLiteral("--absolute-git-dir")});
++    if (!setupGitProcess(git, repo, {QStringLiteral("rev-parse"), QStringLiteral("--absolute-git-dir")})) {
++        return std::nullopt;
++    }
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitStatus() != QProcess::NormalExit || git.exitCode() != 0) {
+diff --git a/addons/externaltools/katetoolrunner.cpp b/addons/externaltools/katetoolrunner.cpp
+index 10a5d722626c50e02ec39b09549288329bc4bf77..e14940ad7ed827c7da2b960081c2fe31b7d0c316 100644
+--- a/addons/externaltools/katetoolrunner.cpp
++++ b/addons/externaltools/katetoolrunner.cpp
+@@ -14,6 +14,7 @@
+ #include <KTextEditor/View>
+ #include <QFileInfo>
+ #include <QRegularExpression>
++#include <QStandardPaths>
+ 
+ KateToolRunner::KateToolRunner(std::unique_ptr<KateExternalTool> tool, KTextEditor::View *view, QObject *parent)
+     : QObject(parent)
+@@ -40,6 +41,12 @@ KateExternalTool *KateToolRunner::tool() const
+ 
+ void KateToolRunner::run()
+ {
++    // always only execute the tool from PATH
++    const auto fullExecutable = QStandardPaths::findExecutable(m_tool->executable);
++    if (fullExecutable.isEmpty()) {
++        return;
++    }
++
+     if (!m_tool->workingDir.isEmpty()) {
+         m_process->setWorkingDirectory(m_tool->workingDir);
+     } else if (m_view) {
+@@ -72,7 +79,7 @@ void KateToolRunner::run()
+     });
+ 
+     const QStringList args = KShell::splitArgs(m_tool->arguments);
+-    m_process->start(m_tool->executable, args);
++    m_process->start(fullExecutable, args);
+ }
+ 
+ void KateToolRunner::waitForFinished()
+diff --git a/addons/gdbplugin/debugview.cpp b/addons/gdbplugin/debugview.cpp
+index 9505daa25bb346a99ab3383e2f33663d31a32f27..d8c868d7aeb3466cec7f83a8c3925ecedff32960 100644
+--- a/addons/gdbplugin/debugview.cpp
++++ b/addons/gdbplugin/debugview.cpp
+@@ -12,7 +12,9 @@
+ #include "debugview.h"
+ 
+ #include <QFile>
++#include <QFileInfo>
+ #include <QRegularExpression>
++#include <QStandardPaths>
+ #include <QTimer>
+ 
+ #include <KLocalizedString>
+@@ -48,7 +50,20 @@ void DebugView::runDebugger(const GDBTargetConf &conf, const QStringList &ioFifo
+     if (conf.executable.isEmpty()) {
+         return;
+     }
++
+     m_targetConf = conf;
++
++    // no chance if no debugger configured
++    if (m_targetConf.gdbCmd.isEmpty()) {
++        return;
++    }
++
++    // only run debugger from PATH or the absolute executable path we specified
++    const auto fullExecutable = QFileInfo(m_targetConf.gdbCmd).isAbsolute() ? m_targetConf.gdbCmd : QStandardPaths::findExecutable(m_targetConf.gdbCmd);
++    if (fullExecutable.isEmpty()) {
++        return;
++    }
++
+     if (ioFifos.size() == 3) {
+         m_ioPipeString = QStringLiteral("< %1 1> %2 2> %3").arg(ioFifos[0], ioFifos[1], ioFifos[2]);
+     }
+@@ -69,7 +84,7 @@ void DebugView::runDebugger(const GDBTargetConf &conf, const QStringList &ioFifo
+ 
+         connect(&m_debugProcess, static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished), this, &DebugView::slotDebugFinished);
+ 
+-        m_debugProcess.start(m_targetConf.gdbCmd, QStringList());
++        m_debugProcess.start(fullExecutable, QStringList());
+ 
+         m_nextCommands << QStringLiteral("set pagination off");
+         m_state = ready;
+diff --git a/addons/git-blame/commitfilesview.cpp b/addons/git-blame/commitfilesview.cpp
+index 26e484a4a44bd2db1f110cce3fb944e9a474b504..667b423b256a1988fa8826a1a3186579ef71d210 100644
+--- a/addons/git-blame/commitfilesview.cpp
++++ b/addons/git-blame/commitfilesview.cpp
+@@ -263,7 +263,9 @@ static void createFileTree(QStandardItem *parent, const QString &basePath, const
+ static std::optional<QString> getGitCmdOutput(const QString &workDir, const QStringList &args)
+ {
+     QProcess git;
+-    setupGitProcess(git, workDir, args);
++    if (!setupGitProcess(git, workDir, args)) {
++        return {};
++    }
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitStatus() != QProcess::NormalExit || git.exitCode() != 0) {
+@@ -365,9 +367,12 @@ void CommitDiffTreeView::openCommit(const QString &hash, const QString &filePath
+     m_commitHash = hash;
+ 
+     QProcess *git = new QProcess(this);
+-    setupGitProcess(*git,
+-                    QFileInfo(filePath).absolutePath(),
+-                    {QStringLiteral("show"), hash, QStringLiteral("--numstat"), QStringLiteral("--pretty=oneline"), QStringLiteral("-z")});
++    if (!setupGitProcess(*git,
++                         QFileInfo(filePath).absolutePath(),
++                         {QStringLiteral("show"), hash, QStringLiteral("--numstat"), QStringLiteral("--pretty=oneline"), QStringLiteral("-z")})) {
++        delete git;
++        return;
++    }
+     connect(git, &QProcess::finished, this, [this, git, filePath](int e, QProcess::ExitStatus s) {
+         git->deleteLater();
+         if (e != 0 || s != QProcess::NormalExit) {
+@@ -440,7 +445,9 @@ void CommitDiffTreeView::showDiff(const QModelIndex &idx)
+ {
+     const QString file = idx.data(FileItem::Path).toString();
+     QProcess git;
+-    setupGitProcess(git, m_gitDir, {QStringLiteral("show"), m_commitHash, QStringLiteral("--"), file});
++    if (!setupGitProcess(git, m_gitDir, {QStringLiteral("show"), m_commitHash, QStringLiteral("--"), file})) {
++        return;
++    }
+     git.start(QProcess::ReadOnly);
+ 
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+diff --git a/addons/git-blame/kategitblameplugin.cpp b/addons/git-blame/kategitblameplugin.cpp
+index d0354cc759b5054fca0a0d275ba29baf9d0bee7e..ae0f8c10664533720bf3bef648dd7558b0ffd0dc 100644
+--- a/addons/git-blame/kategitblameplugin.cpp
++++ b/addons/git-blame/kategitblameplugin.cpp
+@@ -255,7 +255,9 @@ void KateGitBlamePluginView::startBlameProcess(const QUrl &url)
+     QDir dir{url.toLocalFile()};
+     dir.cdUp();
+ 
+-    setupGitProcess(m_blameInfoProc, dir.absolutePath(), {QStringLiteral("blame"), QStringLiteral("-p"), QStringLiteral("./%1").arg(fileName)});
++    if (!setupGitProcess(m_blameInfoProc, dir.absolutePath(), {QStringLiteral("blame"), QStringLiteral("-p"), QStringLiteral("./%1").arg(fileName)})) {
++        return;
++    }
+     m_blameInfoProc.start(QIODevice::ReadOnly);
+     m_blameUrl = url;
+ }
+@@ -270,7 +272,9 @@ void KateGitBlamePluginView::startShowProcess(const QUrl &url, const QString &ha
+     QDir dir{url.toLocalFile()};
+     dir.cdUp();
+ 
+-    setupGitProcess(m_showProc, dir.absolutePath(), {QStringLiteral("show"), hash, QStringLiteral("--numstat")});
++    if (!setupGitProcess(m_showProc, dir.absolutePath(), {QStringLiteral("show"), hash, QStringLiteral("--numstat")})) {
++        return;
++    }
+     m_showProc.start(QIODevice::ReadOnly);
+ }
+ 
+diff --git a/addons/kate-ctags/gotosymbolmodel.cpp b/addons/kate-ctags/gotosymbolmodel.cpp
+index 6c547e3795a42612afb6031b68887fae3d8385ea..0c116090fe106996599c7f33cf2942a503877435 100644
+--- a/addons/kate-ctags/gotosymbolmodel.cpp
++++ b/addons/kate-ctags/gotosymbolmodel.cpp
+@@ -8,6 +8,7 @@
+ #include <KLocalizedString>
+ #include <QDebug>
+ #include <QProcess>
++#include <QStandardPaths>
+ 
+ GotoSymbolModel::GotoSymbolModel(QObject *parent)
+     : QAbstractTableModel(parent)
+@@ -58,16 +59,24 @@ void GotoSymbolModel::refresh(const QString &filePath)
+     m_rows.clear();
+     endResetModel();
+ 
++    // only use ctags from PATH
++    static const auto fullExecutablePath = QStandardPaths::findExecutable(QStringLiteral("ctags"));
++    if (fullExecutablePath.isEmpty()) {
++        beginResetModel();
++        m_rows.append(SymbolItem{i18n("CTags executable not found."), -1, QIcon()});
++        endResetModel();
++        return;
++    }
++
+     QProcess p;
+-    p.start(QStringLiteral("ctags"), {QStringLiteral("-x"), QStringLiteral("--_xformat=%{name}%{signature}\t%{kind}\t%{line}"), filePath});
++    p.start(fullExecutablePath, {QStringLiteral("-x"), QStringLiteral("--_xformat=%{name}%{signature}\t%{kind}\t%{line}"), filePath});
+ 
+     QByteArray out;
+     if (p.waitForFinished()) {
+         out = p.readAllStandardOutput();
+     } else {
+-        qWarning() << "Ctags failed";
+         beginResetModel();
+-        m_rows.append(SymbolItem{i18n("CTags executable not found."), -1, QIcon()});
++        m_rows.append(SymbolItem{i18n("CTags executable failed to execute."), -1, QIcon()});
+         endResetModel();
+         return;
+     }
+diff --git a/addons/project/comparebranchesview.cpp b/addons/project/comparebranchesview.cpp
+index 48d1d26339e1b58c69483d7f8f13dbe7c056e8e0..7cf585f66bacc5ec028399c7f37f3ebac0c4d096 100644
+--- a/addons/project/comparebranchesview.cpp
++++ b/addons/project/comparebranchesview.cpp
+@@ -158,7 +158,9 @@ void CompareBranchesView::showDiff(const QModelIndex &idx)
+ {
+     auto file = idx.data(Qt::UserRole).toString().remove(m_gitDir + QLatin1Char('/'));
+     QProcess git;
+-    setupGitProcess(git, m_gitDir, {QStringLiteral("diff"), QStringLiteral("%1...%2").arg(m_fromBr).arg(m_toBr), QStringLiteral("--"), file});
++    if (!setupGitProcess(git, m_gitDir, {QStringLiteral("diff"), QStringLiteral("%1...%2").arg(m_fromBr).arg(m_toBr), QStringLiteral("--"), file})) {
++        return;
++    }
+     git.start(QProcess::ReadOnly);
+ 
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+diff --git a/addons/project/filehistorywidget.cpp b/addons/project/filehistorywidget.cpp
+index 626016a6b8556d5a3e3b86141990c06d7d406edb..14857e17847dceafe6db06b9b46cc1e56f5f0b35 100644
+--- a/addons/project/filehistorywidget.cpp
++++ b/addons/project/filehistorywidget.cpp
+@@ -231,9 +231,12 @@ FileHistoryWidget::~FileHistoryWidget()
+ // git log --format=%H%n%aN%n%aE%n%at%n%ct%n%P%n%B --author-date-order
+ void FileHistoryWidget::getFileHistory(const QString &file)
+ {
+-    setupGitProcess(m_git,
+-                    QFileInfo(file).absolutePath(),
+-                    {QStringLiteral("log"), QStringLiteral("--format=%H%n%aN%n%aE%n%at%n%ct%n%P%n%B"), QStringLiteral("-z"), file});
++    if (!setupGitProcess(m_git,
++                         QFileInfo(file).absolutePath(),
++                         {QStringLiteral("log"), QStringLiteral("--format=%H%n%aN%n%aE%n%at%n%ct%n%P%n%B"), QStringLiteral("-z"), file})) {
++        Q_EMIT errorMessage(i18n("Failed to get file history: git executable not found in PATH"), true);
++        return;
++    }
+ 
+     connect(&m_git, &QProcess::readyReadStandardOutput, this, [this] {
+         auto commits = parseCommits(m_git.readAllStandardOutput().split(0x00));
+@@ -258,7 +261,10 @@ void FileHistoryWidget::itemClicked(const QModelIndex &idx)
+ 
+     const auto commit = idx.data(CommitListModel::CommitRole).value<Commit>();
+ 
+-    setupGitProcess(git, fi.absolutePath(), {QStringLiteral("show"), QString::fromUtf8(commit.hash), QStringLiteral("--"), m_file});
++    if (!setupGitProcess(git, fi.absolutePath(), {QStringLiteral("show"), QString::fromUtf8(commit.hash), QStringLiteral("--"), m_file})) {
++        return;
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitStatus() != QProcess::NormalExit || git.exitCode() != 0) {
+diff --git a/addons/project/git/gitutils.cpp b/addons/project/git/gitutils.cpp
+index ea8dd8823e640a409821fe8afbe27a7d5ea7cd46..8b494c16f1b7a368de58ae5a8a545eb2701a7327 100644
+--- a/addons/project/git/gitutils.cpp
++++ b/addons/project/git/gitutils.cpp
+@@ -15,7 +15,10 @@
+ bool GitUtils::isGitRepo(const QString &repo)
+ {
+     QProcess git;
+-    setupGitProcess(git, repo, {QStringLiteral("rev-parse"), QStringLiteral("--is-inside-work-tree")});
++    if (!setupGitProcess(git, repo, {QStringLiteral("rev-parse"), QStringLiteral("--is-inside-work-tree")})) {
++        return false;
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         return git.readAll().trimmed() == "true";
+@@ -27,7 +30,10 @@ std::optional<QString> GitUtils::getDotGitPath(const QString &repo)
+ {
+     /* This call is intentionally blocking because we need git path for everything else */
+     QProcess git;
+-    setupGitProcess(git, repo, {QStringLiteral("rev-parse"), QStringLiteral("--absolute-git-dir")});
++    if (!setupGitProcess(git, repo, {QStringLiteral("rev-parse"), QStringLiteral("--absolute-git-dir")})) {
++        return std::nullopt;
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitStatus() != QProcess::NormalExit || git.exitCode() != 0) {
+@@ -57,7 +63,10 @@ QString GitUtils::getCurrentBranchName(const QString &repo)
+ 
+     for (int i = 0; i < 3; ++i) {
+         QProcess git;
+-        setupGitProcess(git, repo, argsList[i]);
++        if (!setupGitProcess(git, repo, argsList[i])) {
++            return QString();
++        }
++
+         git.start(QProcess::ReadOnly);
+         if (git.waitForStarted() && git.waitForFinished(-1)) {
+             if (git.exitStatus() == QProcess::NormalExit && git.exitCode() == 0) {
+@@ -73,7 +82,10 @@ QString GitUtils::getCurrentBranchName(const QString &repo)
+ GitUtils::CheckoutResult GitUtils::checkoutBranch(const QString &repo, const QString &branch)
+ {
+     QProcess git;
+-    setupGitProcess(git, repo, {QStringLiteral("checkout"), branch});
++    if (!setupGitProcess(git, repo, {QStringLiteral("checkout"), branch})) {
++        return CheckoutResult{};
++    }
++
+     git.start(QProcess::ReadOnly);
+     CheckoutResult res;
+     res.branch = branch;
+@@ -91,7 +103,11 @@ GitUtils::CheckoutResult GitUtils::checkoutNewBranch(const QString &repo, const
+     if (!fromBranch.isEmpty()) {
+         args.append(fromBranch);
+     }
+-    setupGitProcess(git, repo, args);
++
++    if (!setupGitProcess(git, repo, args)) {
++        return CheckoutResult{};
++    }
++
+     git.start(QProcess::ReadOnly);
+     CheckoutResult res;
+     res.branch = newBranch;
+@@ -132,7 +148,10 @@ QVector<GitUtils::Branch> GitUtils::getAllBranchesAndTags(const QString &repo, R
+         args.append(QStringLiteral("--sort=-taggerdate"));
+     }
+ 
+-    setupGitProcess(git, repo, args);
++    if (!setupGitProcess(git, repo, args)) {
++        return {};
++    }
++
+     git.start(QProcess::ReadOnly);
+     QVector<Branch> branches;
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+@@ -166,7 +185,10 @@ std::pair<QString, QString> GitUtils::getLastCommitMessage(const QString &repo)
+ {
+     // git log -1 --pretty=%B
+     QProcess git;
+-    setupGitProcess(git, repo, {QStringLiteral("log"), QStringLiteral("-1"), QStringLiteral("--pretty=%B")});
++    if (!setupGitProcess(git, repo, {QStringLiteral("log"), QStringLiteral("-1"), QStringLiteral("--pretty=%B")})) {
++        return {};
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitCode() != 0 || git.exitStatus() != QProcess::NormalExit) {
+@@ -197,7 +219,10 @@ GitUtils::Result GitUtils::deleteBranches(const QStringList &branches, const QSt
+     args << branches;
+ 
+     QProcess git;
+-    setupGitProcess(git, repo, args);
++    if (!setupGitProcess(git, repo, args)) {
++        return {};
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         QString out = QString::fromLatin1(git.readAllStandardError()) + QString::fromLatin1(git.readAllStandardOutput());
+diff --git a/addons/project/gitwidget.cpp b/addons/project/gitwidget.cpp
+index 2b19781c064b9f37f418da53ef911e53740189d4..77499dad8c64ad93e5b7b1016ce59850bc8c2171 100644
+--- a/addons/project/gitwidget.cpp
++++ b/addons/project/gitwidget.cpp
+@@ -514,8 +514,9 @@ void GitWidget::launchExternalDiffTool(const QString &file, bool staged)
+     args.append(file);
+ 
+     QProcess git;
+-    setupGitProcess(git, m_gitPath, args);
+-    git.startDetached();
++    if (setupGitProcess(git, m_gitPath, args)) {
++        git.startDetached();
++    }
+ }
+ 
+ void GitWidget::commitChanges(const QString &msg, const QString &desc, bool signOff, bool amend)
+@@ -745,7 +746,12 @@ void GitWidget::branchCompareFiles(const QString &from, const QString &to)
+     auto args = QStringList{QStringLiteral("diff"), QStringLiteral("%1...%2").arg(from).arg(to), QStringLiteral("--name-status")};
+ 
+     QProcess git;
+-    setupGitProcess(git, m_gitPath, args);
++
++    // early out if we can't find git
++    if (!setupGitProcess(git, m_gitPath, args)) {
++        return;
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitStatus() != QProcess::NormalExit || git.exitCode() != 0) {
+@@ -767,7 +773,12 @@ void GitWidget::branchCompareFiles(const QString &from, const QString &to)
+ 
+     // get --num-stat
+     args = QStringList{QStringLiteral("diff"), QStringLiteral("%1...%2").arg(from).arg(to), QStringLiteral("--numstat"), QStringLiteral("-z")};
+-    setupGitProcess(git, m_gitPath, args);
++
++    // early out if we can't find git
++    if (!setupGitProcess(git, m_gitPath, args)) {
++        return;
++    }
++
+     git.start(QProcess::ReadOnly);
+     if (git.waitForStarted() && git.waitForFinished(-1)) {
+         if (git.exitStatus() != QProcess::NormalExit || git.exitCode() != 0) {
+diff --git a/addons/project/kateprojectindex.cpp b/addons/project/kateprojectindex.cpp
+index a7d9ec9c1fbbfe550af0c2961f8c405524021c61..9fc5b64cb7daeedaee7709dae679d4d498b36653 100644
+--- a/addons/project/kateprojectindex.cpp
++++ b/addons/project/kateprojectindex.cpp
+@@ -9,6 +9,7 @@
+ 
+ #include <QDir>
+ #include <QProcess>
++#include <QStandardPaths>
+ 
+ /**
+  * include ctags reading
+@@ -73,6 +74,12 @@ void KateProjectIndex::loadCtags(const QStringList &files, const QVariantMap &ct
+      */
+     m_ctagsIndexFile->close();
+ 
++    // only use ctags from PATH
++    static const auto fullExecutablePath = QStandardPaths::findExecutable(QStringLiteral("ctags"));
++    if (fullExecutablePath.isEmpty()) {
++        return;
++    }
++
+     /**
+      * try to run ctags for all files in this project
+      * output to our ctags index file
+@@ -85,7 +92,7 @@ void KateProjectIndex::loadCtags(const QStringList &files, const QVariantMap &ct
+     for (const QVariant &optVariant : opts) {
+         args << optVariant.toString();
+     }
+-    ctags.start(QStringLiteral("ctags"), args);
++    ctags.start(fullExecutablePath, args);
+     if (!ctags.waitForStarted()) {
+         return;
+     }
+diff --git a/addons/project/kateprojectinfoviewcodeanalysis.cpp b/addons/project/kateprojectinfoviewcodeanalysis.cpp
+index 21cd26a84de7b37533f6511a4b0eec2f69777f69..23b82c45e746e6b0485b83d27ce04ea984d55ea7 100644
+--- a/addons/project/kateprojectinfoviewcodeanalysis.cpp
++++ b/addons/project/kateprojectinfoviewcodeanalysis.cpp
+@@ -13,6 +13,7 @@
+ 
+ #include <QFileInfo>
+ #include <QHBoxLayout>
++#include <QStandardPaths>
+ #include <QToolTip>
+ #include <QVBoxLayout>
+ 
+@@ -134,14 +135,18 @@ void KateProjectInfoViewCodeAnalysis::slotStartStopClicked()
+     connect(m_analyzer, &QProcess::readyRead, this, &KateProjectInfoViewCodeAnalysis::slotReadyRead);
+     connect(m_analyzer, static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished), this, &KateProjectInfoViewCodeAnalysis::finished);
+ 
+-    m_analyzer->start(m_analysisTool->path(), m_analysisTool->arguments());
++    // ensure we only run the code analyzer from PATH
++    const QString fullExecutable = QStandardPaths::findExecutable(m_analysisTool->path());
++    if (!fullExecutable.isEmpty()) {
++        m_analyzer->start(fullExecutable, m_analysisTool->arguments());
++    }
+ 
+     if (m_messageWidget) {
+         delete m_messageWidget;
+         m_messageWidget = nullptr;
+     }
+ 
+-    if (!m_analyzer->waitForStarted()) {
++    if (fullExecutable.isEmpty() || !m_analyzer->waitForStarted()) {
+         m_messageWidget = new KMessageWidget(this);
+         m_messageWidget->setCloseButtonVisible(true);
+         m_messageWidget->setMessageType(KMessageWidget::Warning);
+diff --git a/addons/project/kateprojectworker.cpp b/addons/project/kateprojectworker.cpp
+index d1979d1ec1c8f08aa1dd3163bd34fbec6f27af18..831dae89b9974e7e0b8ea320544fde815226d4a0 100644
+--- a/addons/project/kateprojectworker.cpp
++++ b/addons/project/kateprojectworker.cpp
+@@ -18,6 +18,7 @@
+ #include <QRegularExpression>
+ #include <QSet>
+ #include <QSettings>
++#include <QStandardPaths>
+ #include <QThread>
+ #include <QTime>
+ #include <QtConcurrent>
+@@ -442,10 +443,12 @@ QVector<QString> KateProjectWorker::filesFromGit(const QDir &dir, bool recursive
+ 
+ QVector<QString> KateProjectWorker::gitFiles(const QDir &dir, bool recursive, const QStringList &args)
+ {
++    QVector<QString> files;
+     QProcess git;
+-    setupGitProcess(git, dir.absolutePath(), args);
++    if (!setupGitProcess(git, dir.absolutePath(), args)) {
++        return files;
++    }
+     git.start(QProcess::ReadOnly);
+-    QVector<QString> files;
+     if (!git.waitForStarted() || !git.waitForFinished(-1)) {
+         return files;
+     }
+@@ -466,13 +469,18 @@ QVector<QString> KateProjectWorker::gitFiles(const QDir &dir, bool recursive, co
+ 
+ QVector<QString> KateProjectWorker::filesFromMercurial(const QDir &dir, bool recursive)
+ {
++    // only use version control from PATH
+     QVector<QString> files;
++    static const auto fullExecutablePath = QStandardPaths::findExecutable(QStringLiteral("hg"));
++    if (fullExecutablePath.isEmpty()) {
++        return files;
++    }
+ 
+     QProcess hg;
+     hg.setWorkingDirectory(dir.absolutePath());
+     QStringList args;
+     args << QStringLiteral("manifest") << QStringLiteral(".");
+-    hg.start(QStringLiteral("hg"), args, QProcess::ReadOnly);
++    hg.start(fullExecutablePath, args, QProcess::ReadOnly);
+     if (!hg.waitForStarted() || !hg.waitForFinished(-1)) {
+         return files;
+     }
+@@ -493,7 +501,12 @@ QVector<QString> KateProjectWorker::filesFromMercurial(const QDir &dir, bool rec
+ 
+ QVector<QString> KateProjectWorker::filesFromSubversion(const QDir &dir, bool recursive)
+ {
++    // only use version control from PATH
+     QVector<QString> files;
++    static const auto fullExecutablePath = QStandardPaths::findExecutable(QStringLiteral("svn"));
++    if (fullExecutablePath.isEmpty()) {
++        return files;
++    }
+ 
+     QProcess svn;
+     svn.setWorkingDirectory(dir.absolutePath());
+@@ -504,7 +517,7 @@ QVector<QString> KateProjectWorker::filesFromSubversion(const QDir &dir, bool re
+     } else {
+         args << QStringLiteral("--depth=files");
+     }
+-    svn.start(QStringLiteral("svn"), args, QProcess::ReadOnly);
++    svn.start(fullExecutablePath, args, QProcess::ReadOnly);
+     if (!svn.waitForStarted() || !svn.waitForFinished(-1)) {
+         return files;
+     }
+@@ -555,18 +568,21 @@ QVector<QString> KateProjectWorker::filesFromSubversion(const QDir &dir, bool re
+ 
+ QVector<QString> KateProjectWorker::filesFromDarcs(const QDir &dir, bool recursive)
+ {
++    // only use version control from PATH
+     QVector<QString> files;
++    static const auto fullExecutablePath = QStandardPaths::findExecutable(QStringLiteral("darcs"));
++    if (fullExecutablePath.isEmpty()) {
++        return files;
++    }
+ 
+-    const QString cmd = QStringLiteral("darcs");
+     QString root;
+-
+     {
+         QProcess darcs;
+         darcs.setWorkingDirectory(dir.absolutePath());
+         QStringList args;
+         args << QStringLiteral("list") << QStringLiteral("repo");
+ 
+-        darcs.start(cmd, args, QProcess::ReadOnly);
++        darcs.start(fullExecutablePath, args, QProcess::ReadOnly);
+ 
+         if (!darcs.waitForStarted() || !darcs.waitForFinished(-1)) {
+             return files;
+@@ -590,7 +606,7 @@ QVector<QString> KateProjectWorker::filesFromDarcs(const QDir &dir, bool recursi
+         darcs.setWorkingDirectory(dir.absolutePath());
+         args << QStringLiteral("list") << QStringLiteral("files") << QStringLiteral("--no-directories") << QStringLiteral("--pending");
+ 
+-        darcs.start(cmd, args, QProcess::ReadOnly);
++        darcs.start(fullExecutablePath, args, QProcess::ReadOnly);
+ 
+         if (!darcs.waitForStarted() || !darcs.waitForFinished(-1)) {
+             return files;
+diff --git a/addons/project/stashdialog.cpp b/addons/project/stashdialog.cpp
+index c623182a8d0b7b9ece763e110ecb598682a0f7a0..bddedf709839fd824694de756fb333cc8b58367b 100644
+--- a/addons/project/stashdialog.cpp
++++ b/addons/project/stashdialog.cpp
+@@ -32,6 +32,8 @@
+ 
+ #include <kfts_fuzzy_match.h>
+ 
++#include <gitprocess.h>
++
+ constexpr int StashIndexRole = Qt::UserRole + 2;
+ 
+ class StashFilterModel final : public QSortFilterProxyModel
+@@ -218,11 +220,10 @@ void StashDialog::slotReturnPressed()
+     hide();
+ }
+ 
+-QProcess *StashDialog::gitp()
++QProcess *StashDialog::gitp(const QStringList &arguments)
+ {
+     auto git = new QProcess(this);
+-    git->setProgram(QStringLiteral("git"));
+-    git->setWorkingDirectory(m_gitPath);
++    setupGitProcess(*git, m_gitPath, arguments);
+     return git;
+ }
+ 
+@@ -242,7 +243,7 @@ void StashDialog::stash(bool keepIndex, bool includeUntracked)
+         args.append(m_lineEdit.text());
+     }
+ 
+-    auto git = gitp();
++    auto git = gitp(args);
+     connect(git, &QProcess::finished, this, [this, git](int exitCode, QProcess::ExitStatus es) {
+         if (es != QProcess::NormalExit || exitCode != 0) {
+             qWarning() << git->errorString();
+@@ -253,14 +254,12 @@ void StashDialog::stash(bool keepIndex, bool includeUntracked)
+         Q_EMIT done();
+         git->deleteLater();
+     });
+-    git->setArguments(args);
+     git->start(QProcess::ReadOnly);
+ }
+ 
+ void StashDialog::getStashList()
+ {
+-    auto git = gitp();
+-    git->setArguments({QStringLiteral("stash"), QStringLiteral("list")});
++    auto git = gitp({QStringLiteral("stash"), QStringLiteral("list")});
+     git->start(QProcess::ReadOnly);
+ 
+     QList<QByteArray> stashList;
+@@ -293,11 +292,11 @@ void StashDialog::getStashList()
+ 
+ void StashDialog::popStash(const QByteArray &index, const QString &command)
+ {
+-    auto git = gitp();
+     QStringList args{QStringLiteral("stash"), command};
+     if (!index.isEmpty()) {
+         args.append(QString::fromUtf8(index));
+     }
++    auto git = gitp(args);
+ 
+     connect(git, &QProcess::finished, this, [this, command, git](int exitCode, QProcess::ExitStatus es) {
+         if (es != QProcess::NormalExit || exitCode != 0) {
+@@ -320,7 +319,6 @@ void StashDialog::popStash(const QByteArray &index, const QString &command)
+         Q_EMIT done();
+         git->deleteLater();
+     });
+-    git->setArguments(args);
+     git->start(QProcess::ReadOnly);
+ }
+ 
+@@ -339,9 +337,8 @@ void StashDialog::showStash(const QByteArray &index)
+     if (index.isEmpty()) {
+         return;
+     }
+-    auto git = gitp();
+ 
+-    QStringList args{QStringLiteral("stash"), QStringLiteral("show"), QStringLiteral("-p"), QString::fromUtf8(index)};
++    auto git = gitp({QStringLiteral("stash"), QStringLiteral("show"), QStringLiteral("-p"), QString::fromUtf8(index)});
+ 
+     connect(git, &QProcess::finished, this, [this, git](int exitCode, QProcess::ExitStatus es) {
+         if (es != QProcess::NormalExit || exitCode != 0) {
+@@ -353,6 +350,5 @@ void StashDialog::showStash(const QByteArray &index)
+         git->deleteLater();
+     });
+ 
+-    git->setArguments(args);
+     git->start(QProcess::ReadOnly);
+ }
+diff --git a/addons/project/stashdialog.h b/addons/project/stashdialog.h
+index a18d42ab935db03b0e6d1ae920ab1b61ff4175a4..41769075779fc254bb833b70afa24bbdaef832b8 100644
+--- a/addons/project/stashdialog.h
++++ b/addons/project/stashdialog.h
+@@ -56,7 +56,7 @@ protected Q_SLOTS:
+     void slotReturnPressed() override;
+ 
+ private:
+-    QProcess *gitp();
++    QProcess *gitp(const QStringList &arguments);
+     void stash(bool keepIndex, bool includeUntracked);
+     void getStashList();
+     void popStash(const QByteArray &index, const QString &command = QStringLiteral("pop"));
+diff --git a/addons/replicode/replicodeview.cpp b/addons/replicode/replicodeview.cpp
+index 0199f46ce90585e915b06bafefa05a3304859167..7f70ee1eab92f63aadca792df7bbec5e46d97f55 100644
+--- a/addons/replicode/replicodeview.cpp
++++ b/addons/replicode/replicodeview.cpp
+@@ -8,7 +8,9 @@
+ 
+ #include "replicodeconfig.h"
+ #include "replicodesettings.h"
++
+ #include <QPushButton>
++#include <QStandardPaths>
+ #include <QTemporaryFile>
+ #include <QtGlobal>
+ 
+@@ -116,7 +118,14 @@ void ReplicodeView::runReplicode()
+     }
+ 
+     KConfigGroup config(KSharedConfig::openConfig(), QStringLiteral("Replicode"));
++
+     QString executorPath = config.readEntry<QString>("replicodePath", QString());
++
++    // ensure we only call replicode from PATH if not given as absolute path already
++    if (!executorPath.isEmpty() && !QFileInfo(executorPath).isAbsolute()) {
++        executorPath = QStandardPaths::findExecutable(executorPath);
++    }
++
+     if (executorPath.isEmpty()) {
+         QMessageBox::warning(m_mainWindow->window(),
+                              i18nc("@title:window", "Replicode Executable Not Found"),
+diff --git a/addons/xmlcheck/plugin_katexmlcheck.cpp b/addons/xmlcheck/plugin_katexmlcheck.cpp
+index f1d52f3a7e184dcee612a25d34e26a644565eab6..3971550cd5785d31d07239e5b97eac21c2515246 100644
+--- a/addons/xmlcheck/plugin_katexmlcheck.cpp
++++ b/addons/xmlcheck/plugin_katexmlcheck.cpp
+@@ -304,10 +304,18 @@ bool PluginKateXMLCheckView::slotValidate()
+     s << kv->document()->text();
+     s.flush();
+ 
++    // ensure we only execute xmllint from PATH or application package
+     QString exe = QStandardPaths::findExecutable(QStringLiteral("xmllint"));
+     if (exe.isEmpty()) {
+         exe = QStandardPaths::locate(QStandardPaths::ApplicationsLocation, QStringLiteral("xmllint"));
+     }
++    if (exe.isEmpty()) {
++        KMessageBox::error(nullptr,
++                           i18n("<b>Error:</b> Failed to find xmllint. Please make "
++                                "sure that xmllint is installed. It is part of libxml2."));
++        return false;
++    }
++
+     // qDebug() << "exe=" <<exe;
+     // 	// use catalogs for KDE docbook:
+     // 	if( ! getenv("XML_CATALOG_FILES") ) {
+diff --git a/kate/katefileactions.cpp b/kate/katefileactions.cpp
+index c56c7e1c81b3e771f19163c43b56b8c2ebbd6d15..09a23686c600a9569c9bda69c40e8d53cb1f3f5b 100644
+--- a/kate/katefileactions.cpp
++++ b/kate/katefileactions.cpp
+@@ -23,6 +23,7 @@
+ #include <QDebug>
+ #include <QInputDialog>
+ #include <QProcess>
++#include <QStandardPaths>
+ #include <QUrl>
+ 
+ void KateFileActions::copyFilePathToClipboard(KTextEditor::Document *doc)
+@@ -137,17 +138,13 @@ void KateFileActions::deleteDocumentFile(QWidget *parent, KTextEditor::Document
+     }
+ }
+ 
+-QStringList KateFileActions::supportedDiffTools()
++QVector<std::pair<QString, QString>> KateFileActions::supportedDiffTools()
+ {
+-    // LATER: check for program existence and set some boolean value accordingly
+-    // Can this be even done in an easy way when we don't use the absolute path to the executable?
+-    // See https://stackoverflow.com/questions/42444055/how-to-check-if-a-program-exists-in-path-using-qt
+-
+-    QStringList resultList;
+-    resultList.push_back(QStringLiteral("kdiff3"));
+-    resultList.push_back(QStringLiteral("kompare"));
+-    resultList.push_back(QStringLiteral("meld"));
+-
++    // query once if the tools are there in the path and store that
++    // we will disable the actions for the tools not found
++    static QVector<std::pair<QString, QString>> resultList{{QStringLiteral("kdiff3"), QStandardPaths::findExecutable(QStringLiteral("kdiff3"))},
++                                                           {QStringLiteral("kompare"), QStandardPaths::findExecutable(QStringLiteral("kompare"))},
++                                                           {QStringLiteral("meld"), QStandardPaths::findExecutable(QStringLiteral("meld"))}};
+     return resultList;
+ }
+ 
+diff --git a/kate/katefileactions.h b/kate/katefileactions.h
+index 524d810975e5f57c4351e1e91568734585f41ca3..77cc5b0bffefe263ea494aafb5fe8c6c03927775 100644
+--- a/kate/katefileactions.h
++++ b/kate/katefileactions.h
+@@ -51,9 +51,9 @@ void openFilePropertiesDialog(KTextEditor::Document *document);
+ void deleteDocumentFile(QWidget *parent, KTextEditor::Document *document);
+ 
+ /**
+- * @returns a list of supported diff tools (names of the executables)
++ * @returns a list of supported diff tools (names of the executables + paths to them, empty if not found in PATH)
+  */
+-QStringList supportedDiffTools();
++QVector<std::pair<QString, QString>> supportedDiffTools();
+ 
+ /**
+  * Runs an external program to compare the underlying files of two given documents.
+diff --git a/kate/katemwmodonhddialog.cpp b/kate/katemwmodonhddialog.cpp
+index e0041d858de473df737e8c33c60933a039d5d350..d7c79e4d48c2009dbf52415ca82e4f1f5ea77120 100644
+--- a/kate/katemwmodonhddialog.cpp
++++ b/kate/katemwmodonhddialog.cpp
+@@ -22,6 +22,7 @@
+ #include <QHeaderView>
+ #include <QLabel>
+ #include <QPushButton>
++#include <QStandardPaths>
+ #include <QStyle>
+ #include <QTemporaryFile>
+ #include <QTextStream>
+@@ -52,6 +53,7 @@ public:
+ 
+ KateMwModOnHdDialog::KateMwModOnHdDialog(DocVector docs, QWidget *parent, const char *name)
+     : QDialog(parent)
++    , m_fullDiffPath(QStandardPaths::findExecutable(QStringLiteral("diff")))
+     , m_proc(nullptr)
+     , m_diffFile(nullptr)
+     , m_blockAddDocument(false)
+@@ -108,6 +110,7 @@ KateMwModOnHdDialog::KateMwModOnHdDialog(DocVector docs, QWidget *parent, const
+              "file for the selected document, and shows the difference with the "
+              "default application. Requires diff(1)."));
+     hb->addWidget(btnDiff);
++    btnDiff->setEnabled(!m_fullDiffPath.isEmpty());
+     connect(btnDiff, &QPushButton::clicked, this, &KateMwModOnHdDialog::slotDiff);
+ 
+     // Dialog buttons
+@@ -288,9 +291,10 @@ void KateMwModOnHdDialog::slotDiff()
+     m_diffFile->open();
+ 
+     // Start a KProcess that creates a diff
++    // We use the full path to don't launch some random "diff" in current working directory
+     m_proc = new KProcess(this);
+     m_proc->setOutputChannelMode(KProcess::MergedChannels);
+-    *m_proc << QStringLiteral("diff") << QStringLiteral("-ub") << QStringLiteral("-") << doc->url().toLocalFile();
++    *m_proc << m_fullDiffPath << QStringLiteral("-ub") << QStringLiteral("-") << doc->url().toLocalFile();
+     connect(m_proc, &KProcess::readyRead, this, &KateMwModOnHdDialog::slotDataAvailable);
+     connect(m_proc, static_cast<void (KProcess::*)(int, QProcess::ExitStatus)>(&KProcess::finished), this, &KateMwModOnHdDialog::slotPDone);
+ 
+diff --git a/kate/katemwmodonhddialog.h b/kate/katemwmodonhddialog.h
+index 11c09eab7284be885aaee62f6108958c54dd9e3a..6fa2457269e819dca9a900b6f9d6e08e25893f9d 100644
+--- a/kate/katemwmodonhddialog.h
++++ b/kate/katemwmodonhddialog.h
+@@ -51,6 +51,7 @@ private:
+     class QTreeWidget *twDocuments;
+     class QDialogButtonBox *dlgButtons;
+     class QPushButton *btnDiff;
++    QString m_fullDiffPath;
+     KProcess *m_proc;
+     QTemporaryFile *m_diffFile;
+     QStringList m_stateTexts;
+diff --git a/kate/kateviewspace.cpp b/kate/kateviewspace.cpp
+index dba2fb973d20e02fb7c84fff72208b682a96aa8c..af3bb8d34ffed3ebd8c80be0b4966cc7865f58dc 100644
+--- a/kate/kateviewspace.cpp
++++ b/kate/kateviewspace.cpp
+@@ -678,8 +678,11 @@ void KateViewSpace::showContextMenu(int idx, const QPoint &globalPos)
+ 
+     if (mCompareWithActive->isEnabled()) {
+         for (auto &&diffTool : KateFileActions::supportedDiffTools()) {
+-            QAction *compareAction = mCompareWithActive->addAction(diffTool);
+-            compareAction->setData(diffTool);
++            QAction *compareAction = mCompareWithActive->addAction(diffTool.first);
++
++            // we use the full path to safely execute the tool, disable action if no full path => tool not found
++            compareAction->setData(diffTool.second);
++            compareAction->setEnabled(!diffTool.second.isEmpty());
+         }
+     }
+ 
+diff --git a/shared/gitprocess.h b/shared/gitprocess.h
+index 47b98b69605feb9fd7287dfd2df0de16276ad362..b0d79fac639dd1c76cb79074ebe004e9b0bf583d 100644
+--- a/shared/gitprocess.h
++++ b/shared/gitprocess.h
+@@ -7,6 +7,7 @@
+ #pragma once
+ 
+ #include <QProcess>
++#include <QStandardPaths>
+ 
+ /**
+  * small helper function to setup a QProcess based "git" command.
+@@ -17,10 +18,20 @@
+  * @param process process to setup for git
+  * @param workingDirectory working directory to use for process
+  * @param arguments arguments to pass to git
++ * @return could set setup the process or did that fail, e.g. because the git executable is not available?
+  */
+-inline void setupGitProcess(QProcess &process, const QString &workingDirectory, const QStringList &arguments)
++inline bool setupGitProcess(QProcess &process, const QString &workingDirectory, const QStringList &arguments)
+ {
+-    process.setProgram(QStringLiteral("git"));
++    // only use git from PATH
++    static const auto gitExecutable = QStandardPaths::findExecutable(QStringLiteral("git"));
++    if (gitExecutable.isEmpty()) {
++        // ensure we have no valid QProcess setup
++        process.setProgram(QString());
++        return false;
++    }
++
++    // setup program and arguments, ensure we do run git in the right working directory
++    process.setProgram(gitExecutable);
+     process.setWorkingDirectory(workingDirectory);
+     process.setArguments(arguments);
+ 
+@@ -37,4 +48,5 @@ inline void setupGitProcess(QProcess &process, const QString &workingDirectory,
+     QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+     env.insert(QStringLiteral("GIT_OPTIONAL_LOCKS"), QStringLiteral("0"));
+     process.setProcessEnvironment(env);
++    return true;
+ }
diff --git a/debian/patches/92a9c65e30b4b63b8b116eb5c8dcb1e1a2d867bc.diff b/debian/patches/92a9c65e30b4b63b8b116eb5c8dcb1e1a2d867bc.diff
new file mode 100644
index 0000000..3a89452
--- /dev/null
+++ b/debian/patches/92a9c65e30b4b63b8b116eb5c8dcb1e1a2d867bc.diff
@@ -0,0 +1,22 @@
+diff --git a/addons/lspclient/lspclientservermanager.cpp b/addons/lspclient/lspclientservermanager.cpp
+index 551926e23175560f912e9a9de86f1a8cf58e7e05..24e3f275bee7014e400f71cb9f36d2ed56996d20 100644
+--- a/addons/lspclient/lspclientservermanager.cpp
++++ b/addons/lspclient/lspclientservermanager.cpp
+@@ -737,13 +737,13 @@ private:
+                 server.reset(new LSPClientServer(cmdline, root, realLangId, serverConfig.value(QStringLiteral("initializationOptions")), folders));
+                 connect(server.data(), &LSPClientServer::stateChanged, this, &self_type::onStateChanged, Qt::UniqueConnection);
+                 if (!server->start()) {
+-                    QString errorMessage = i18n("Failed to start server: %1", cmdline.join(QLatin1Char(' ')));
++                    QString message = i18n("Failed to start server: %1", cmdline.join(QLatin1Char(' ')));
+                     const auto url = serverConfig.value(QStringLiteral("url")).toString();
+                     if (!url.isEmpty()) {
+-                        errorMessage += QStringLiteral("\n") + i18n("Please check your PATH for the binary");
+-                        errorMessage += QStringLiteral("\n") + i18n("See also %1 for installation or details", url);
++                        message += QStringLiteral("\n") + i18n("Please check your PATH for the binary");
++                        message += QStringLiteral("\n") + i18n("See also %1 for installation or details", url);
+                     }
+-                    showMessage(errorMessage, KTextEditor::Message::Error);
++                    showMessage(message, KTextEditor::Message::Warning);
+                 } else {
+                     showMessage(i18n("Started server %2: %1", cmdline.join(QLatin1Char(' ')), serverDescription(server.data())),
+                                 KTextEditor::Message::Positive);
diff --git a/debian/patches/c5d66f3b70ae4778d6162564309aee95f643e7c9.diff b/debian/patches/c5d66f3b70ae4778d6162564309aee95f643e7c9.diff
new file mode 100644
index 0000000..09e9919
--- /dev/null
+++ b/debian/patches/c5d66f3b70ae4778d6162564309aee95f643e7c9.diff
@@ -0,0 +1,108 @@
+diff --git a/addons/lspclient/lspclientservermanager.cpp b/addons/lspclient/lspclientservermanager.cpp
+index 24e3f275bee7014e400f71cb9f36d2ed56996d20..e78b4aa2d91c35ddcb883aba9037683318170a2a 100644
+--- a/addons/lspclient/lspclientservermanager.cpp
++++ b/addons/lspclient/lspclientservermanager.cpp
+@@ -707,52 +707,67 @@ private:
+             }
+ 
+             if (cmdline.length() > 0) {
++                // ensure we always only take the server executable from the PATH or user defined paths
++                // QProcess will take the executable even just from current working directory without this => BAD
++                auto cmd = QStandardPaths::findExecutable(cmdline[0]);
++
+                 // optionally search in supplied path(s)
+-                auto vpath = serverConfig.value(QStringLiteral("path")).toArray();
+-                if (vpath.size() > 0) {
+-                    auto cmd = QStandardPaths::findExecutable(cmdline[0]);
+-                    if (cmd.isEmpty()) {
+-                        // collect and expand in case home dir or other (environment) variable reference is used
+-                        QStringList path;
+-                        for (const auto &e : vpath) {
+-                            auto p = e.toString();
+-                            editor->expandText(p, view, p);
+-                            path.push_back(p);
+-                        }
+-                        cmd = QStandardPaths::findExecutable(cmdline[0], path);
+-                        if (!cmd.isEmpty()) {
+-                            cmdline[0] = cmd;
+-                        }
++                const auto vpath = serverConfig.value(QStringLiteral("path")).toArray();
++                if (cmd.isEmpty() && !vpath.isEmpty()) {
++                    // collect and expand in case home dir or other (environment) variable reference is used
++                    QStringList path;
++                    for (const auto &e : vpath) {
++                        auto p = e.toString();
++                        editor->expandText(p, view, p);
++                        path.push_back(p);
+                     }
++                    cmd = QStandardPaths::findExecutable(cmdline[0], path);
+                 }
+-                // an empty list is always passed here (or null)
+-                // the initial list is provided/updated using notification after start
+-                // since that is what a server is more aware of
+-                // and should support if it declares workspace folder capable
+-                // (as opposed to the new initialization property)
+-                LSPClientServer::FoldersType folders;
+-                if (useWorkspace) {
+-                    folders = QList<LSPWorkspaceFolder>();
+-                }
+-                server.reset(new LSPClientServer(cmdline, root, realLangId, serverConfig.value(QStringLiteral("initializationOptions")), folders));
+-                connect(server.data(), &LSPClientServer::stateChanged, this, &self_type::onStateChanged, Qt::UniqueConnection);
+-                if (!server->start()) {
+-                    QString message = i18n("Failed to start server: %1", cmdline.join(QLatin1Char(' ')));
++
++                // we can only start the stuff if we did find the binary in the paths
++                if (!cmd.isEmpty()) {
++                    // use full path to avoid security issues
++                    cmdline[0] = cmd;
++
++                    // an empty list is always passed here (or null)
++                    // the initial list is provided/updated using notification after start
++                    // since that is what a server is more aware of
++                    // and should support if it declares workspace folder capable
++                    // (as opposed to the new initialization property)
++                    LSPClientServer::FoldersType folders;
++                    if (useWorkspace) {
++                        folders = QList<LSPWorkspaceFolder>();
++                    }
++                    server.reset(new LSPClientServer(cmdline, root, realLangId, serverConfig.value(QStringLiteral("initializationOptions")), folders));
++                    connect(server.data(), &LSPClientServer::stateChanged, this, &self_type::onStateChanged, Qt::UniqueConnection);
++                    if (!server->start()) {
++                        QString message = i18n("Failed to start server: %1", cmdline.join(QLatin1Char(' ')));
++                        const auto url = serverConfig.value(QStringLiteral("url")).toString();
++                        if (!url.isEmpty()) {
++                            message += QStringLiteral("\n") + i18n("Please check your PATH for the binary");
++                            message += QStringLiteral("\n") + i18n("See also %1 for installation or details", url);
++                        }
++                        showMessage(message, KTextEditor::Message::Warning);
++                    } else {
++                        showMessage(i18n("Started server %2: %1", cmdline.join(QLatin1Char(' ')), serverDescription(server.data())),
++                                    KTextEditor::Message::Positive);
++                        using namespace std::placeholders;
++                        server->connect(server.data(), &LSPClientServer::logMessage, this, std::bind(&self_type::onMessage, this, true, _1));
++                        server->connect(server.data(), &LSPClientServer::showMessage, this, std::bind(&self_type::onMessage, this, false, _1));
++                        server->connect(server.data(), &LSPClientServer::workDoneProgress, this, &self_type::onWorkDoneProgress);
++                        server->connect(server.data(), &LSPClientServer::workspaceFolders, this, &self_type::onWorkspaceFolders, Qt::UniqueConnection);
++                    }
++                } else {
++                    // we didn't find the server binary at all!
++                    QString message = i18n("Failed to find server binary: %1", cmdline[0]);
+                     const auto url = serverConfig.value(QStringLiteral("url")).toString();
+                     if (!url.isEmpty()) {
+                         message += QStringLiteral("\n") + i18n("Please check your PATH for the binary");
+                         message += QStringLiteral("\n") + i18n("See also %1 for installation or details", url);
+                     }
+                     showMessage(message, KTextEditor::Message::Warning);
+-                } else {
+-                    showMessage(i18n("Started server %2: %1", cmdline.join(QLatin1Char(' ')), serverDescription(server.data())),
+-                                KTextEditor::Message::Positive);
+-                    using namespace std::placeholders;
+-                    server->connect(server.data(), &LSPClientServer::logMessage, this, std::bind(&self_type::onMessage, this, true, _1));
+-                    server->connect(server.data(), &LSPClientServer::showMessage, this, std::bind(&self_type::onMessage, this, false, _1));
+-                    server->connect(server.data(), &LSPClientServer::workDoneProgress, this, &self_type::onWorkDoneProgress);
+-                    server->connect(server.data(), &LSPClientServer::workspaceFolders, this, &self_type::onWorkspaceFolders, Qt::UniqueConnection);
+                 }
++
+                 serverinfo.settings = serverConfig.value(QStringLiteral("settings"));
+                 serverinfo.started = QTime::currentTime();
+                 serverinfo.url = serverConfig.value(QStringLiteral("url")).toString();
diff --git a/debian/patches/series b/debian/patches/series
new file mode 100644
index 0000000..4fe0009
--- /dev/null
+++ b/debian/patches/series
@@ -0,0 +1,5 @@
+361dd43e42994829dbdb35e78fb7698d27cbb0e2.diff
+6fc3bf6e5bd540e842e32c4a959c2158c8573be5.diff
+92a9c65e30b4b63b8b116eb5c8dcb1e1a2d867bc.diff
+c5d66f3b70ae4778d6162564309aee95f643e7c9.diff
+7e08a58fb50d28ba96aedd5f5cd79a9479b4a0ad.diff


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