From b32cd8c759bfcd4066df12ad07c93e84f5c54ca2 Mon Sep 17 00:00:00 2001
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Mon, 24 Feb 2025 13:57:27 +0100
Subject: [PATCH] xvfb: protect from memory allocation failure

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
 hw/vfb/InitOutput.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/vfb/InitOutput.c b/hw/vfb/InitOutput.c
index a2d48b630..cd3b2e0a8 100644
--- a/hw/vfb/InitOutput.c
+++ b/hw/vfb/InitOutput.c
@@ -484,6 +484,8 @@ vfbInstallColormap(ColormapPtr pmap)
         ppix = calloc(entries, sizeof(Pixel));
         prgb = calloc(entries, sizeof(xrgb));
         defs = calloc(entries, sizeof(xColorItem));
+        if (!ppix || !prgb || !defs)
+            goto out;
 
         for (i = 0; i < entries; i++)
             ppix[i] = i;
@@ -499,6 +501,7 @@ vfbInstallColormap(ColormapPtr pmap)
         }
         (*pmap->pScreen->StoreColors) (pmap, entries, defs);
 
+out:
         free(ppix);
         free(prgb);
         free(defs);