Staging: vt6655-6: potential info leak in private_ioctl()

Smatch has a new check for Rosenberg type information leaks where structs are copied to the user with uninitialized stack data in them. In this path, the .uLinkRate member doesn't get initialized so I've set it to zero. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
git-mirror · Sep 27, 2011 · de0920b · de0920b
1 parent 43664e1
commit de0920b
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diff --git a/drivers/staging/vt6655/ioctl.c b/drivers/staging/vt6655/ioctl.c
@@ -296,6 +296,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq) {
         }
         else {
             sLinkStatus.bLink = false;
+	    sLinkStatus.uLinkRate = 0;
         }
         if (copy_to_user(pReq->data, &sLinkStatus, sizeof(SCmdLinkStatus))) {
 			result = -EFAULT;

diff --git a/drivers/staging/vt6656/ioctl.c b/drivers/staging/vt6656/ioctl.c
@@ -291,6 +291,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq) {
         }
         else {
             sLinkStatus.bLink = FALSE;
+	    sLinkStatus.uLinkRate = 0;
         }
         if (copy_to_user(pReq->data, &sLinkStatus, sizeof(SCmdLinkStatus))) {
 			result = -EFAULT;