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screencopy: guard region buffer values in frameDamage

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This commit is contained in:
vaxerski 2023-07-19 13:10:31 +02:00
parent 5cd5631fb2
commit aac75ddcbf
1 changed files with 6 additions and 0 deletions
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6
src/protocols/Screencopy.cpp
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@ -405,6 +405,12 @@ void CScreencopyProtocolManager::sendFrameDamage(SScreencopyFrame* frame) {
PIXMAN_DAMAGE_FOREACH(&frame->pMonitor->lastFrameDamage) {
const auto RECT = &RECTSARR[i];
if (frame->buffer->width < 1 || frame->buffer->height < 1 || frame->buffer->width - RECT->x1 < 1 || frame->buffer->height - RECT->y1 < 1) {
Debug::log(ERR, "[sc] Failed to send damage");
break;
}
zwlr_screencopy_frame_v1_send_damage(frame->resource, std::clamp(RECT->x1, 0, frame->buffer->width), std::clamp(RECT->y1, 0, frame->buffer->height),
std::clamp(RECT->x2 - RECT->x1, 0, frame->buffer->width - RECT->x1),
std::clamp(RECT->y2 - RECT->y1, 0, frame->buffer->height - RECT->y1));