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-rw-r--r--net/rds/send.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/rds/send.c b/net/rds/send.c
index b52cdc8ae428..f72466c63f0c 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -1009,6 +1009,9 @@ static int rds_rdma_bytes(struct msghdr *msg, size_t *rdma_bytes)
continue;
if (cmsg->cmsg_type == RDS_CMSG_RDMA_ARGS) {
+ if (cmsg->cmsg_len <
+ CMSG_LEN(sizeof(struct rds_rdma_args)))
+ return -EINVAL;
args = CMSG_DATA(cmsg);
*rdma_bytes += args->remote_vec.bytes;
}