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ocfs2: move ocfs2_xattr_handlers and ocfs2_xattr_handler_map to .rodata

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This makes it harder for accidental or malicious changes to
ocfs2_xattr_handlers or ocfs2_xattr_handler_map at runtime.

Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: ocfs2-devel@lists.linux.dev
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20230930050033.41174-21-wedsonaf@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Wedson Almeida Filho 2023-09-30 02:00:24 -03:00 committed by Christian Brauner
parent 5bf1dd9441
commit 2cba9af99b
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
2 changed files with 3 additions and 3 deletions
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4
fs/ocfs2/xattr.c
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@ -87,14 +87,14 @@ static struct ocfs2_xattr_def_value_root def_xv = {
.xv.xr_list.l_count = cpu_to_le16(1),
};
const struct xattr_handler *ocfs2_xattr_handlers[] = {
const struct xattr_handler * const ocfs2_xattr_handlers[] = {
&ocfs2_xattr_user_handler,
&ocfs2_xattr_trusted_handler,
&ocfs2_xattr_security_handler,
NULL
};
static const struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
static const struct xattr_handler * const ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
[OCFS2_XATTR_INDEX_USER] = &ocfs2_xattr_user_handler,
[OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS] = &nop_posix_acl_access,
[OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT] = &nop_posix_acl_default,

2
fs/ocfs2/xattr.h
View File

@ -30,7 +30,7 @@ struct ocfs2_security_xattr_info {
extern const struct xattr_handler ocfs2_xattr_user_handler;
extern const struct xattr_handler ocfs2_xattr_trusted_handler;
extern const struct xattr_handler ocfs2_xattr_security_handler;
extern const struct xattr_handler *ocfs2_xattr_handlers[];
extern const struct xattr_handler * const ocfs2_xattr_handlers[];
ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int,