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nfs: move nfs4_xattr_handlers to .rodata 

This makes it harder for accidental or malicious changes to
nfs4_xattr_handlers at runtime.

Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna@kernel.org>
Cc: linux-nfs@vger.kernel.org
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20230930050033.41174-19-wedsonaf@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Wedson Almeida Filho 2023-09-30 02:00:22 -03:00 committed by Christian Brauner
parent ffb2e06508
commit f496647e3b
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
3 changed files with 3 additions and 3 deletions
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2
fs/nfs/nfs.h
View File

@ -18,7 +18,7 @@ struct nfs_subversion {
const struct rpc_version *rpc_vers; /* NFS version information */
const struct nfs_rpc_ops *rpc_ops; /* NFS operations */
const struct super_operations *sops; /* NFS Super operations */
const struct xattr_handler **xattr; /* NFS xattr handlers */
const struct xattr_handler * const *xattr; /* NFS xattr handlers */
struct list_head list; /* List of NFS versions */
};

2
fs/nfs/nfs4_fs.h
View File

@ -315,7 +315,7 @@ extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *,
struct nfs_fh *,
struct nfs_fattr *);
extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
extern const struct xattr_handler *nfs4_xattr_handlers[];
extern const struct xattr_handler * const nfs4_xattr_handlers[];
extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
const struct nfs_open_context *ctx,
const struct nfs_lock_context *l_ctx,

2
fs/nfs/nfs4proc.c
View File

@ -10733,7 +10733,7 @@ static const struct xattr_handler nfs4_xattr_nfs4_user_handler = {
};
#endif
const struct xattr_handler *nfs4_xattr_handlers[] = {
const struct xattr_handler * const nfs4_xattr_handlers[] = {
&nfs4_xattr_nfs4_acl_handler,
#if defined(CONFIG_NFS_V4_1)
&nfs4_xattr_nfs4_dacl_handler,