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syzkaller found another out of bound access in ip_options_compile(), or more exactly in cipso_v4_validate() Fixes:20e2a86485("cipso: handle CIPSO options correctly when NetLabel is disabled") Fixes:446fda4f26("[NetLabel]: CIPSOv4 engine") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Paul Moore <paul@paul-moore.com> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: David S. Miller <davem@davemloft.net>