diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index a63474b..41c89f5 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -1059,6 +1059,7 @@ static int io_import_kbuf(int ddir, struct iov_iter *iter,
 	if (count < imu->len) {
 		const struct bio_vec *bvec = iter->bvec;
 
+		len += iter->iov_offset;
 		while (len > bvec->bv_len) {
 			len -= bvec->bv_len;
 			bvec++;