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-rw-r--r--xrdp/xrdp_font.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/xrdp/xrdp_font.c b/xrdp/xrdp_font.c
index 6cb93930..67bf268a 100644
--- a/xrdp/xrdp_font.c
+++ b/xrdp/xrdp_font.c
@@ -108,6 +108,13 @@ xrdp_font_create(struct xrdp_wm* wm)
f->incby = i;
in_uint8s(s, 6);
datasize = FONT_DATASIZE(f);
+ if (datasize < 0 || datasize > 512)
+ {
+ /* shouldn't happen */
+ g_writeln("error in xrdp_font_create, datasize wrong");
+ g_writeln("%d %d %d", f->width, f->height, datasize);
+ break;
+ }
if (s_check_rem(s, datasize))
{
f->data = (char*)g_malloc(datasize, 0);