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layershell: check if layer is valid (#9156)

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fixes compositor crash when client tried to create a layer surface with
invalid layer argument
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heather7283 2025-01-24 19:51:31 +04:00 • committed by GitHub
parent 0e5d03a557
commit 9b3f71390c
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1 changed files with 5 additions and 0 deletions
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5
src/protocols/LayerShell.cpp
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@ -233,6 +233,11 @@ void CLayerShellProtocol::onGetLayerSurface(CZwlrLayerShellV1* pMgr, uint32_t id
return; return;
} }
if UNLIKELY (layer > ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY) {
pMgr->error(ZWLR_LAYER_SHELL_V1_ERROR_INVALID_LAYER, "Invalid layer");
return;
}
const auto RESOURCE = m_vLayers.emplace_back(makeShared<CLayerShellResource>(makeShared<CZwlrLayerSurfaceV1>(CLIENT, pMgr->version(), id), SURF, namespace_, PMONITOR, layer)); const auto RESOURCE = m_vLayers.emplace_back(makeShared<CLayerShellResource>(makeShared<CZwlrLayerSurfaceV1>(CLIENT, pMgr->version(), id), SURF, namespace_, PMONITOR, layer));
if UNLIKELY (!RESOURCE->good()) { if UNLIKELY (!RESOURCE->good()) {