upstream: fix possible null-deref in check_key_not_revoked; ok
djm OpenBSD-Commit-ID: 80855e9d7af42bb6fcc16c074ba69876bfe5e3bf
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@ -1,4 +1,4 @@
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/* $OpenBSD: hostfile.c,v 1.78 2020/02/26 13:40:09 jsg Exp $ */
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/* $OpenBSD: hostfile.c,v 1.79 2020/03/06 18:25:12 markus Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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@ -312,7 +312,7 @@ check_key_not_revoked(struct hostkeys *hostkeys, struct sshkey *k)
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continue;
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if (sshkey_equal_public(k, hostkeys->entries[i].key))
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return -1;
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if (is_cert &&
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if (is_cert && k != NULL &&
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sshkey_equal_public(k->cert->signature_key,
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hostkeys->entries[i].key))
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return -1;
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