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authorGravatar Dan Carpenter <dan.carpenter@linaro.org> 2023-05-26 16:39:15 +0300
committerGravatar Jakub Kicinski <kuba@kernel.org> 2023-05-29 21:59:56 -0700
commitef1bc119ceb52d22a83f72b8dfce1dd64a3cca05 (patch)
treeb056301510b19ba6e5cbc9ac4b748211243fa8fc
parentnet: dpaa2-mac: use correct interface to free mdiodev (diff)
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net: fix signedness bug in skb_splice_from_iter()
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> Reviewed-by: David Howells <dhowells@redhat.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/366861a7-87c8-4bbf-9101-69dd41021d07@kili.mountain Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--net/core/skbuff.c4
1 files 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;