[PATCH v3 5/8] io_uring: convert io_uring to the secure anon inode interface

Paul Moore paul at paul-moore.com
Tue Sep 14 03:33:22 UTC 2021


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 at paul-moore.com>

---
v3:
- no change
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 388754b24785..56cc9aba0d01 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -10155,8 +10155,8 @@ 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);



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