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screencopy/toplevelexport: sanitize pointers in ::copyFrame

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oopsie~~ >///<
This commit is contained in:
Vaxry 2024-02-07 00:18:47 +00:00
parent ded174d6e5
commit f085ed4454
4 changed files with 24 additions and 0 deletions
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9
src/Compositor.cpp
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@ -688,6 +688,15 @@ bool CCompositor::windowExists(CWindow* pWindow) {
return false;
}
bool CCompositor::monitorExists(CMonitor* pMonitor) {
for (auto& m : m_vRealMonitors) {
if (m.get() == pMonitor)
return true;
}
return false;
}
CWindow* CCompositor::vectorToWindowUnified(const Vector2D& pos, uint8_t properties, CWindow* pIgnoreWindow) {
const auto PMONITOR = getMonitorFromVector(pos);
static auto* const PRESIZEONBORDER = &g_pConfigManager->getConfigValuePtr("general:resize_on_border")->intValue;

1
src/Compositor.hpp
View file

@ -135,6 +135,7 @@ class CCompositor {
void focusSurface(wlr_surface*, CWindow* pWindowOwner = nullptr);
bool windowExists(CWindow*);
bool windowValidMapped(CWindow*);
bool monitorExists(CMonitor*);
CWindow* vectorToWindowUnified(const Vector2D&, uint8_t properties, CWindow* pIgnoreWindow = nullptr);
wlr_surface* vectorToLayerSurface(const Vector2D&, std::vector<std::unique_ptr<SLayerSurface>>*, Vector2D*, SLayerSurface**);
SIMEPopup* vectorToIMEPopup(const Vector2D& pos, std::list<SIMEPopup>& popups);

7
src/protocols/Screencopy.cpp
View file

@ -191,6 +191,13 @@ void CScreencopyProtocolManager::captureOutput(wl_client* client, wl_resource* r
PFRAME->resource = wl_resource_create(client, &zwlr_screencopy_frame_v1_interface, wl_resource_get_version(resource), frame);
PFRAME->pMonitor = g_pCompositor->getMonitorFromOutput(wlr_output_from_resource(output));
if (!g_pCompositor->monitorExists(PFRAME->pMonitor)) {
Debug::log(ERR, "client requested sharing of a monitor that is gone");
zwlr_screencopy_frame_v1_send_failed(PFRAME->resource);
removeFrame(PFRAME);
return;
}
if (!PFRAME->pMonitor) {
Debug::log(ERR, "client requested sharing of a monitor that doesnt exist");
zwlr_screencopy_frame_v1_send_failed(PFRAME->resource);

7
src/protocols/ToplevelExport.cpp
View file

@ -224,6 +224,13 @@ void CToplevelExportProtocolManager::copyFrame(wl_client* client, wl_resource* r
return;
}
if (!g_pCompositor->windowValidMapped(PFRAME->pWindow)) {
Debug::log(ERR, "Client requested sharing of window handle {:x} which is gone!", (uintptr_t)PFRAME->pWindow);
hyprland_toplevel_export_frame_v1_send_failed(PFRAME->resource);
removeFrame(PFRAME);
return;
}
if (!PFRAME->pWindow->m_bIsMapped || PFRAME->pWindow->isHidden()) {
Debug::log(ERR, "Client requested sharing of window handle {:x} which is not shareable (2)!", PFRAME->pWindow);
hyprland_toplevel_export_frame_v1_send_failed(PFRAME->resource);