# \[PATCH net\] net: qrtr: revert check in qrtr\_endpoint\_post()

- From: Dan Carpenter \<hidden\>
- Date: 2021-09-02 10:09:35 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/09/1495633
- Thread: https://ratatoskr.run/netdev/2021/08/1493724/t.md

```text
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 <redacted>
Signed-off-by: Dan Carpenter <redacted>
Tested-by: Srinivas Kandagatla <redacted>
---
 net/qrtr/qrtr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 525e3ea063b1..ec2322529727 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 &&
-- 
2.20.1
```