netdev - [PATCH 3/7] xfrm: Fix leak of dev tracker

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Message-ID: <20230516052405.2677554-4-steffen.klassert@secunet.com>
Date: Tue, 16 May 2023 07:24:01 +0200
From: Steffen Klassert <steffen.klassert@...unet.com>
To: David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>
CC: Herbert Xu <herbert@...dor.apana.org.au>, Steffen Klassert
	<steffen.klassert@...unet.com>, <netdev@...r.kernel.org>
Subject: [PATCH 3/7] xfrm: Fix leak of dev tracker

From: Leon Romanovsky <leonro@...dia.com>

At the stage of direction checks, the netdev reference tracker is
already initialized, but released with wrong *_put() call.

Fixes: 919e43fad516 ("xfrm: add an interface to offload policy")
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
Reviewed-by: Simon Horman <simon.horman@...igine.com>
Reviewed-by: Eric Dumazet <edumazet@...gle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---
 net/xfrm/xfrm_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 95f1436bf6a2..e2ca50bfca24 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -378,7 +378,7 @@ int xfrm_dev_policy_add(struct net *net, struct xfrm_policy *xp,
 		break;
 	default:
 		xdo->dev = NULL;
-		dev_put(dev);
+		netdev_put(dev, &xdo->dev_tracker);
 		NL_SET_ERR_MSG(extack, "Unrecognized offload direction");
 		return -EINVAL;
 	}
-- 
2.34.1