diff --git a/io_uring/net.c b/io_uring/net.c
index 0af8a02df580f4933fdd42e8957eb8f63e59f369..7a5468cc905e74d2c2704aca1271ce8a318a1da8 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -956,7 +956,7 @@ static int io_sg_from_iter(struct sock *sk, struct sk_buff *skb,
 	shinfo->nr_frags = frag;
 	from->bvec += bi.bi_idx;
 	from->nr_segs -= bi.bi_idx;
-	from->count = bi.bi_size;
+	from->count -= copied;
 	from->iov_offset = bi.bi_bvec_done;
 
 	skb->data_len += copied;