ext4: move ext4_xattr_handlers to .rodata

This makes it harder for accidental or malicious changes to ext4_xattr_handlers at runtime. Cc: Theodore Ts'o <[email protected]> Cc: Andreas Dilger <[email protected]> Cc: [email protected] Signed-off-by: Wedson Almeida Filho <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Christian Brauner <[email protected]>
Uduru0522 · Oct 9, 2023 · e60ac12 · e60ac12
1 parent e346fb6
commit e60ac12
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
@@ -98,7 +98,7 @@ static const struct xattr_handler * const ext4_xattr_handler_map[] = {
 	[EXT4_XATTR_INDEX_HURD]		     = &ext4_xattr_hurd_handler,
 };
 
-const struct xattr_handler *ext4_xattr_handlers[] = {
+const struct xattr_handler * const ext4_xattr_handlers[] = {
 	&ext4_xattr_user_handler,
 	&ext4_xattr_trusted_handler,
 #ifdef CONFIG_EXT4_FS_SECURITY

diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
@@ -193,7 +193,7 @@ extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
 			    struct ext4_inode *raw_inode, handle_t *handle);
 extern void ext4_evict_ea_inode(struct inode *inode);
 
-extern const struct xattr_handler *ext4_xattr_handlers[];
+extern const struct xattr_handler * const ext4_xattr_handlers[];
 
 extern int ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
 				 struct ext4_xattr_ibody_find *is);