staging: lustre: info leak in lnet_ping()

On 64 bit systems there is a 4 byte hole after the last member of the
struct.  We should clear it to avoid disclosing stack information.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c
index 3f1fdaa2989185cc6433b887e5844204d6cdf91e..3f878dee2e4287fb36b0bb722ff10282860b6abd 100644 (file)
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c
+++ b/drivers/staging/lustre/lnet/lnet/api-ni.c
@@ -1927,6 +1927,7 @@ lnet_ping (lnet_process_id_t id, int timeout_ms, lnet_process_id_t *ids, int n_i
 
        rc = -EFAULT;                      /* If I SEGV... */
 
+       memset(&tmpid, 0, sizeof(tmpid));
        for (i = 0; i < n_ids; i++) {
                tmpid.pid = info->pi_pid;
                tmpid.nid = info->pi_ni[i].ns_nid;