From d8f82b5f08921d8dfeb0aae8c826a21a001d703b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 28 Nov 2022 21:27:41 +0100 Subject: [PATCH] hw/display/qxl: Assert memory slot fits in preallocated MemoryRegion MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Philippe Mathieu-Daudé Signed-off-by: Stefan Hajnoczi Message-Id: <20221128202741.4945-6-philmd@linaro.org> --- hw/display/qxl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/display/qxl.c b/hw/display/qxl.c index 0b21626aadead..6772849dec283 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -1384,6 +1384,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region); return 1; } + assert(guest_end - pci_start <= memory_region_size(mr)); virt_start = (intptr_t)memory_region_get_ram_ptr(mr); memslot.slot_id = slot_id;