Backport: xserver: Avoid sending uninitialized padding data over the network

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

2 files changed, 15 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/xkb/xkb.c b/nx-X11/programs/Xserver/xkb/xkb.c
index 778269f7c..1e4052914 100644
--- a/nx-X11/programs/Xserver/xkb/xkb.c
+++ b/nx-X11/programs/Xserver/xkb/xkb.c
@@ -192,6 +192,7 @@ ProcXkbUseExtension(ClientPtr client)
 					stuff->wantedMajor,stuff->wantedMinor,
 					XkbMajorVersion,XkbMinorVersion);
     }
+    memset(&rep, 0, sizeof(xkbUseExtensionReply));
     rep.type = X_Reply;
     rep.supported = supported;
     rep.length = 0;
@@ -1313,6 +1314,8 @@ char		*desc,*start;
     start= desc= (char *)ALLOCATE_LOCAL(len);
     if (!start)
 	return BadAlloc;
+    memset(start, 0, len);
+
     if ( rep->nTypes>0 )
 	desc = XkbWriteKeyTypes(xkb,rep,desc,client);
     if ( rep->nKeySyms>0 )
@@ -2381,6 +2384,8 @@ ProcXkbSetMap(ClientPtr client)
     				(xkb->max_key_code!=stuff->maxKeyCode)) {
 	Status			status;
 	xkbNewKeyboardNotify	nkn;
+
+	memset(&nkn, 0, sizeof(xkbNewKeyboardNotify));
 	nkn.deviceID= nkn.oldDeviceID= dev->id;
 	nkn.oldMinKeyCode= xkb->min_key_code;
 	nkn.oldMaxKeyCode= xkb->max_key_code;
@@ -3480,6 +3485,7 @@ ProcXkbGetNames(ClientPtr client)
     CHK_MASK_LEGAL(0x01,stuff->which,XkbAllNamesMask);
 
     xkb = dev->key->xkbInfo->desc;
+    memset(&rep, 0, sizeof(xkbGetNamesReply));
     rep.type= X_Reply;
     rep.sequenceNumber= client->sequence;
     rep.length = 0;
@@ -4939,6 +4945,7 @@ ProcXkbSetGeometry(ClientPtr client)
 	nn.changed= XkbGeometryNameMask;
 	XkbSendNamesNotify(dev,&nn);
     }
+    memset(&nkn, 0, sizeof(xkbNewKeyboardNotify));
     nkn.deviceID= nkn.oldDeviceID= dev->id;
     nkn.minKeyCode= nkn.oldMinKeyCode= xkb->min_key_code;
     nkn.maxKeyCode= nkn.oldMaxKeyCode= xkb->max_key_code;
@@ -4969,6 +4976,7 @@ ProcXkbPerClientFlags(ClientPtr client)
     CHK_MASK_MATCH(0x02,stuff->change,stuff->value);
 
     interest = XkbFindClientResource((DevicePtr)dev,client);
+    memset(&rep, 0, sizeof(xkbPerClientFlagsReply));
     rep.type= X_Reply;
     rep.length = 0;
     rep.sequenceNumber = client->sequence;
@@ -5463,6 +5471,7 @@ ProcXkbGetKbdByName(ClientPtr client)
 	    XkbFreeSrvLedInfo(old_sli);
 	}
 
+	memset(&nkn, 0, sizeof(xkbNewKeyboardNotify));
 	nkn.deviceID= nkn.oldDeviceID= dev->id;
 	nkn.minKeyCode= finfo.xkb->min_key_code;
 	nkn.maxKeyCode= finfo.xkb->max_key_code;
diff --git a/nx-X11/programs/Xserver/xkb/xkbEvents.c b/nx-X11/programs/Xserver/xkb/xkbEvents.c
index 8305208a0..914e3e782 100644
--- a/nx-X11/programs/Xserver/xkb/xkbEvents.c
+++ b/nx-X11/programs/Xserver/xkb/xkbEvents.c
@@ -730,6 +730,7 @@ XkbSrvLedInfoPtr	sli;
     }
     if (pChanges->map.changed) {
 	xkbMapNotify mn;
+	memset(&mn, 0, sizeof(xkbMapNotify));
 	mn.changed= pChanges->map.changed;
 	mn.firstType= pChanges->map.first_type;
 	mn.nTypes= pChanges->map.num_types;
@@ -751,6 +752,7 @@ XkbSrvLedInfoPtr	sli;
     if ((pChanges->ctrls.changed_ctrls)||
 	(pChanges->ctrls.enabled_ctrls_changes)) {
 	xkbControlsNotify cn;
+	memset(&cn, 0, sizeof(xkbControlsNotify));
 	cn.changedControls= pChanges->ctrls.changed_ctrls;
 	cn.enabledControlChanges= pChanges->ctrls.enabled_ctrls_changes;
 	cn.keycode= cause->kc;
@@ -763,6 +765,7 @@ XkbSrvLedInfoPtr	sli;
 	xkbIndicatorNotify in;
 	if (sli==NULL)
 	    sli= XkbFindSrvLedInfo(kbd,XkbDfltXIClass,XkbDfltXIId,0);
+	memset(&in, 0, sizeof(xkbIndicatorNotify));
 	in.state= sli->effectiveState;
 	in.changed= pChanges->indicators.map_changes;
 	XkbSendIndicatorNotify(kbd,XkbIndicatorMapNotify,&in);
@@ -771,12 +774,14 @@ XkbSrvLedInfoPtr	sli;
 	xkbIndicatorNotify in;
 	if (sli==NULL)
 	    sli= XkbFindSrvLedInfo(kbd,XkbDfltXIClass,XkbDfltXIId,0);
+	memset(&in, 0, sizeof(xkbIndicatorNotify));
 	in.state= sli->effectiveState;
 	in.changed= pChanges->indicators.state_changes;
 	XkbSendIndicatorNotify(kbd,XkbIndicatorStateNotify,&in);
     }
     if (pChanges->names.changed) {
 	xkbNamesNotify nn;
+	memset(&nn, 0, sizeof(xkbNamesNotify));
 	nn.changed= pChanges->names.changed;
 	nn.firstType= pChanges->names.first_type;
 	nn.nTypes= pChanges->names.num_types;
@@ -789,6 +794,7 @@ XkbSrvLedInfoPtr	sli;
     }
     if ((pChanges->compat.changed_groups)||(pChanges->compat.num_si>0)) {
 	xkbCompatMapNotify cmn;
+	memset(&cmn, 0, sizeof(xkbCompatMapNotify));
 	cmn.changedGroups= pChanges->compat.changed_groups;
 	cmn.firstSI= pChanges->compat.first_si;
 	cmn.nSI= pChanges->compat.num_si;