netdev - [PATCH AUTOSEL 4.19 20/21] net: Return the correct errno code

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Message-Id: <20210607161448.3584332-20-sashal@kernel.org>
Date:   Mon,  7 Jun 2021 12:14:47 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Zheng Yongjun <zhengyongjun3@...wei.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 20/21] net: Return the correct errno code

From: Zheng Yongjun <zhengyongjun3@...wei.com>

[ Upstream commit 49251cd00228a3c983651f6bb2f33f6a0b8f152e ]

When kalloc or kmemdup failed, should return ENOMEM rather than ENOBUF.

Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/compat.c b/net/compat.c
index 2a8c7cb5f06a..2778a236e091 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -158,7 +158,7 @@ int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
 	if (kcmlen > stackbuf_size)
 		kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
 	if (kcmsg == NULL)
-		return -ENOBUFS;
+		return -ENOMEM;
 
 	/* Now copy them over neatly. */
 	memset(kcmsg, 0, kcmlen);
-- 
2.30.2