linux-kernel - [PATCH 07/29] ecryptfs: move ecryptfs_xattr

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Message-Id: <20230930050033.41174-8-wedsonaf@gmail.com>
Date:   Sat, 30 Sep 2023 02:00:11 -0300
From:   Wedson Almeida Filho <wedsonaf@...il.com>
To:     Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>,
        linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Wedson Almeida Filho <walmeida@...rosoft.com>,
        Tyler Hicks <code@...icks.com>, ecryptfs@...r.kernel.org
Subject: [PATCH 07/29] ecryptfs: move ecryptfs_xattr_handlers to .rodata

From: Wedson Almeida Filho <walmeida@...rosoft.com>

This makes it harder for accidental or malicious changes to
ecryptfs_xattr_handlers at runtime.

Cc: Tyler Hicks <code@...icks.com>
Cc: ecryptfs@...r.kernel.org
Signed-off-by: Wedson Almeida Filho <walmeida@...rosoft.com>
---
 fs/ecryptfs/ecryptfs_kernel.h | 2 +-
 fs/ecryptfs/inode.c           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index f2ed0c0266cb..c586c5db18b5 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -702,6 +702,6 @@ int ecryptfs_set_f_namelen(long *namelen, long lower_namelen,
 int ecryptfs_derive_iv(char *iv, struct ecryptfs_crypt_stat *crypt_stat,
 		       loff_t offset);
 
-extern const struct xattr_handler *ecryptfs_xattr_handlers[];
+extern const struct xattr_handler * const ecryptfs_xattr_handlers[];
 
 #endif /* #ifndef ECRYPTFS_KERNEL_H */
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 83274915ba6d..18fcec208d9d 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1209,7 +1209,7 @@ static const struct xattr_handler ecryptfs_xattr_handler = {
 	.set = ecryptfs_xattr_set,
 };
 
-const struct xattr_handler *ecryptfs_xattr_handlers[] = {
+const struct xattr_handler * const ecryptfs_xattr_handlers[] = {
 	&ecryptfs_xattr_handler,
 	NULL
 };
-- 
2.34.1