From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 2 Sep 2021 10:08:51 +0000 (+0300)
Subject: net: qrtr: revert check in qrtr_endpoint_post()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d2cabd2dc8da78faf9b690ea521d03776686c9fe;p=linux.git

net: qrtr: revert check in qrtr_endpoint_post()

I tried to make this check stricter as a hardenning measure but it broke
audo and wifi on these devices so revert it.

Fixes: aaa8e4922c88 ("net: qrtr: make checks in qrtr_endpoint_post() stricter")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 525e3ea063b14..ec23225297278 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -493,7 +493,7 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len)
 		goto err;
 	}
 
-	if (!size || size & 3 || len != size + hdrlen)
+	if (!size || len != ALIGN(size, 4) + hdrlen)
 		goto err;
 
 	if (cb->dst_port != QRTR_PORT_CTRL && cb->type != QRTR_TYPE_DATA &&