svn commit: r330601 - head/sys/i386/ibcs2

[Eitan Adler]

Author: eadler
Date: Wed Mar  7 14:44:32 2018
New Revision: 330601
URL: https://svnweb.freebsd.org/changeset/base/330601

Log:
  sys: Fix a few potential infoleaks in cloudabi
  
  While there is no immediate leak, if the structure changes underneath
  us, there might be in the future.
  
  Submitted by:	Domagoj Stolfa <domagoj.stolfa at gmail.com>
  MFC After:	1 month
  Sponsored by:	DARPA/AFRL

Modified:
  head/sys/i386/ibcs2/ibcs2_ipc.c

Modified: head/sys/i386/ibcs2/ibcs2_ipc.c
==============================================================================
--- head/sys/i386/ibcs2/ibcs2_ipc.c	Wed Mar  7 14:41:29 2018	(r330600)
+++ head/sys/i386/ibcs2/ibcs2_ipc.c	Wed Mar  7 14:44:32 2018	(r330601)
@@ -135,6 +135,8 @@ ibcs2_msgctl(struct thread *td, void *v)
 	struct msqid_ds bs;
 	int error;
 
+	memset(&is, 0, sizeof(is));
+
 	switch (uap->cmd) {
 	case IBCS2_IPC_STAT:
 		error = kern_msgctl(td, uap->msqid, IPC_STAT, &bs);
@@ -317,6 +319,8 @@ ibcs2_semctl(struct thread *td, void *v)
 	union semun semun;
 	register_t rval;
 	int error;
+
+	memset(&is, 0, sizeof(is));
 
 	switch(uap->cmd) {
 	case IBCS2_IPC_STAT: