[PATCH net] net: qrtr: revert check in qrtr_endpoint_post()

From: Dan Carpenter
Date: Thu Sep 02 2021 - 06:09:35 EST


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@xxxxxxxxxx>
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
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