Commit ebe6b2e8 authored Sep 16, 2015 by Dan Carpenter Committed by Doug Ledford Sep 18, 2015

IB/hfi1: info leak in get_ctxt_info()



The cinfo struct has a hole after the last struct member so we need to
zero it out.  Otherwise we disclose some uninitialized stack data.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

parent 951842b0

drivers/staging/rdma/hfi1/file_ops.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1181,6 +1181,7 @@ static int get_ctxt_info(struct file fp, void __user ubase, __u32 len)
		struct hfi1_filedata *fd = fp->private_data;
		int ret = 0;

		memset(&cinfo, 0, sizeof(cinfo));
		ret = hfi1_get_base_kinfo(uctxt, &cinfo);
		if (ret < 0)
		goto done;