[RFC PATCH v2 6/9] io_uring: convert io_uring to the secure anon inode interface

From: Paul Moore <paul@paul-moore.com>
To: linux-security-module@vger.kernel.org, selinux@vger.kernel.org,
	linux-audit@redhat.com, io-uring@vger.kernel.org,
	linux-fsdevel@vger.kernel.org,
	Kumar Kartikeya Dwivedi <memxor@gmail.com>,
	Jens Axboe <axboe@kernel.dk>,
	Pavel Begunkov <asml.silence@gmail.com>
Subject: [RFC PATCH v2 6/9] io_uring: convert io_uring to the secure anon inode interface
Date: Wed, 11 Aug 2021 16:48:49 -0400	[thread overview]
Message-ID: <162871492905.63873.15953733001833062568.stgit@olly> (raw)
In-Reply-To: <162871480969.63873.9434591871437326374.stgit@olly>

Converting io_uring's anonymous inode to the secure anon inode API
enables LSMs to enforce policy on the io_uring anonymous inodes if
they chose to do so.  This is an important first step towards
providing the necessary mechanisms so that LSMs can apply security
policy to io_uring operations.

Signed-off-by: Paul Moore <paul@paul-moore.com>

---
v2:
- no change
v1:
- initial draft
---
 fs/io_uring.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b407a6ea1779..ea396f5fe735 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -9662,8 +9662,8 @@ static struct file *io_uring_get_file(struct io_ring_ctx *ctx)
 		return ERR_PTR(ret);
 #endif
 
-	file = anon_inode_getfile("[io_uring]", &io_uring_fops, ctx,
-					O_RDWR | O_CLOEXEC);
+	file = anon_inode_getfile_secure("[io_uring]", &io_uring_fops, ctx,
+					 O_RDWR | O_CLOEXEC, NULL);
 #if defined(CONFIG_UNIX)
 	if (IS_ERR(file)) {
 		sock_release(ctx->ring_sock);

