From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: lily <floridsleeves@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
asml.silence@gmail.com, imagedong@tencent.com,
luiz.von.dentz@intel.com, vasily.averin@linux.dev,
jk@codeconstruct.com.au, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.15 18/23] net/core/skbuff: Check the return value of skb_copy_bits()
Date: Tue, 30 Aug 2022 13:21:35 -0400 [thread overview]
Message-ID: <20220830172141.581086-18-sashal@kernel.org> (raw)
In-Reply-To: <20220830172141.581086-1-sashal@kernel.org>
From: lily <floridsleeves@gmail.com>
[ Upstream commit c624c58e08b15105662b9ab9be23d14a6b945a49 ]
skb_copy_bits() could fail, which requires a check on the return
value.
Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/core/skbuff.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 5ebef94e14dc6..161406cd991ae 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4188,9 +4188,8 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
SKB_GSO_CB(nskb)->csum_start =
skb_headroom(nskb) + doffset;
} else {
- skb_copy_bits(head_skb, offset,
- skb_put(nskb, len),
- len);
+ if (skb_copy_bits(head_skb, offset, skb_put(nskb, len), len))
+ goto err;
}
continue;
}
--
2.35.1
prev parent reply other threads:[~2022-08-30 17:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220830172141.581086-1-sashal@kernel.org>
2022-08-30 17:21 ` [PATCH AUTOSEL 5.15 15/23] netfilter: conntrack: work around exceeded receive window Sasha Levin
2022-08-30 17:21 ` [PATCH AUTOSEL 5.15 17/23] fec: Restart PPS after link state change Sasha Levin
2022-08-31 13:03 ` Csókás Bence
2022-09-14 18:00 ` Sasha Levin
2022-08-30 17:21 ` Sasha Levin [this message]
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