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-rw-r--r--nx-X11/programs/Xserver/os/access.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/os/access.c b/nx-X11/programs/Xserver/os/access.c
index b6a70a703..0e9d13845 100644
--- a/nx-X11/programs/Xserver/os/access.c
+++ b/nx-X11/programs/Xserver/os/access.c
@@ -1719,6 +1719,10 @@ GetHosts (
{
nHosts++;
n += (((host->len + 3) >> 2) << 2) + sizeof(xHostEntry);
+ /* Could check for INT_MAX, but in reality having more than 1mb of
+ hostnames in the access list is ridiculous */
+ if (n >= 1048576)
+ break;
}
if (n)
{
@@ -1730,6 +1734,8 @@ GetHosts (
for (host = validhosts; host; host = host->next)
{
len = host->len;
+ if ((ptr + sizeof(xHostEntry) + len) > (data + n))
+ break;
((xHostEntry *)ptr)->family = host->family;
((xHostEntry *)ptr)->length = len;
ptr += sizeof(xHostEntry);