linux-kernel - [PATCH AUTOSEL 6.2 51/53] devlink: health: Fix nla_nest

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Message-Id: <20230226144446.824580-51-sashal@kernel.org>
Date:   Sun, 26 Feb 2023 09:44:43 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Moshe Shemesh <moshe@...dia.com>, Jiri Pirko <jiri@...dia.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>, davem@...emloft.net,
        edumazet@...gle.com, pabeni@...hat.com, idosch@...dia.com,
        jacob.e.keller@...el.com, michal.wilczynski@...el.com,
        vikas.gupta@...adcom.com, shayd@...dia.com, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 6.2 51/53] devlink: health: Fix nla_nest_end in error flow

From: Moshe Shemesh <moshe@...dia.com>

[ Upstream commit bfd4e6a5dbbc12f77620602e764ac940ccb159de ]

devlink_nl_health_reporter_fill() error flow calls nla_nest_end(). Fix
it to call nla_nest_cancel() instead.

Note the bug is harmless as genlmsg_cancel() cancel the entire message,
so no fixes tag added.

Signed-off-by: Moshe Shemesh <moshe@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
Reviewed-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/core/devlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 0bfc144df8b99..1e2d167e5cbed 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -7961,7 +7961,7 @@ devlink_nl_health_reporter_fill(struct sk_buff *msg,
 	return 0;
 
 reporter_nest_cancel:
-	nla_nest_end(msg, reporter_attr);
+	nla_nest_cancel(msg, reporter_attr);
 genlmsg_cancel:
 	genlmsg_cancel(msg, hdr);
 	return -EMSGSIZE;
-- 
2.39.0