From: Jens Axboe <axboe@xxxxxxxxx> 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@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/io_uring.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -4788,6 +4788,8 @@ static int io_sendmsg_prep(struct io_kio return -EINVAL; if (unlikely(sqe->addr2 || sqe->file_index)) return -EINVAL; + if (unlikely(sqe->addr2 || sqe->file_index || sqe->ioprio)) + return -EINVAL; sr->umsg = u64_to_user_ptr(READ_ONCE(sqe->addr)); sr->len = READ_ONCE(sqe->len); @@ -5011,6 +5013,8 @@ static int io_recvmsg_prep(struct io_kio return -EINVAL; if (unlikely(sqe->addr2 || sqe->file_index)) return -EINVAL; + if (unlikely(sqe->addr2 || sqe->file_index || sqe->ioprio)) + return -EINVAL; sr->umsg = u64_to_user_ptr(READ_ONCE(sqe->addr)); sr->len = READ_ONCE(sqe->len);
