From: Jens Axboe <axboe@kernel.dk> stable inclusion from stable-v5.10.129 commit c9fc52c1739e1d3d69660e30498f99b2b525de8f category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5YNDQ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit 73911426aaaadbae54fa72359b33a7b6a56947db upstream. All other opcodes correctly check if this is set and -EINVAL if it is and they don't support that field, for some reason the these were forgotten. This was unified a bit differently in the upstream tree, but had the same effect as making sure we error on this field. Rather than have a painful backport of the upstream commit, just fixup the mentioned opcodes. Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: Wei Li <liwei391@huawei.com> --- fs/io_uring.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 0de12d2bc29f..81d982fdc9b5 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -4405,6 +4405,8 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) return -EINVAL; + if (unlikely(sqe->addr2 || sqe->splice_fd_in || sqe->ioprio)) + return -EINVAL; sr->msg_flags = READ_ONCE(sqe->msg_flags); sr->umsg = u64_to_user_ptr(READ_ONCE(sqe->addr)); @@ -4640,6 +4642,8 @@ static int io_recvmsg_prep(struct io_kiocb *req, if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) return -EINVAL; + if (unlikely(sqe->addr2 || sqe->splice_fd_in || sqe->ioprio)) + return -EINVAL; sr->msg_flags = READ_ONCE(sqe->msg_flags); sr->umsg = u64_to_user_ptr(READ_ONCE(sqe->addr)); -- 2.20.1