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Instead of doing an open tree walk using call recursion, use
walk_node_tree() when checking the store for inconsistencies.
This will reduce code size and avoid many nesting levels of function
calls which could potentially exhaust the stack.
This is part of XSA-418 / CVE-2022-42321.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
(cherry picked from commit a07cc0ec60)