netfilter: nf_tables: fix loop checking with end interval elements
netfilter: nf_tables: fix loop checking with end interval elements

Fix access to uninitialized data for end interval elements. The
element data part is uninitialized in interval end elements.

Signed-off-by: Pablo Neira Ayuso <707d14912bb250caf67dfe0ea4035681fbfc4f56@netfilter.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs