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* [PATCH net-next v2] net: fix signedness bug in skb_splice_from_iter()
@ 2023-05-26 13:39 Dan Carpenter
  2023-05-26 13:59 ` David Howells
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Dan Carpenter @ 2023-05-26 13:39 UTC (permalink / raw)
  To: David Howells
  Cc: David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni,
	Alexander Duyck, Jesper Dangaard Brouer, Pavel Begunkov,
	Kees Cook, Jiri Benc, netdev, kernel-janitors

The "len" variable needs to be signed for the error handling to work
correctly.

Fixes: 2e910b95329c ("net: Add a function to splice pages into an skbuff for MSG_SPLICE_PAGES")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
v2: tidy up a style mistake in v1.

 net/core/skbuff.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 653abd8a6975..7c4338221b17 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -6931,8 +6931,8 @@ ssize_t skb_splice_from_iter(struct sk_buff *skb, struct iov_iter *iter,
 	unsigned int i;
 
 	while (iter->count > 0) {
-		ssize_t space, nr;
-		size_t off, len;
+		ssize_t space, nr, len;
+		size_t off;
 
 		ret = -EMSGSIZE;
 		space = frag_limit - skb_shinfo(skb)->nr_frags;
-- 
2.39.2


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end of thread, other threads:[~2023-05-30  5:10 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2023-05-26 13:39 [PATCH net-next v2] net: fix signedness bug in skb_splice_from_iter() Dan Carpenter
2023-05-26 13:59 ` David Howells
2023-05-26 16:10 ` Jiri Pirko
2023-05-30  5:10 ` patchwork-bot+netdevbpf

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