f2fs: handle errors from get_node_page calls (1e03e38b) · Commits · 戴 / test

Add check for error pointers returned from get_node_page in order to avoid dereferencing a bad address on the next use. Signed-off-by:

fs/f2fs/xattr.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -218,6 +218,8 @@ int f2fs_getxattr(struct inode inode, int name_index, const char name,
		return -ENODATA;

		page = get_node_page(sbi, fi->i_xattr_nid);
		if (IS_ERR(page))
		return PTR_ERR(page);
		base_addr = page_address(page);

		list_for_each_xattr(entry, base_addr) {
		@@ -268,6 +270,8 @@ ssize_t f2fs_listxattr(struct dentry dentry, char buffer, size_t buffer_size)
		return 0;

		page = get_node_page(sbi, fi->i_xattr_nid);
		if (IS_ERR(page))
		return PTR_ERR(page);
		base_addr = page_address(page);

		list_for_each_xattr(entry, base_addr) {