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upstream: avoid xmalloc(0) for PKCS#11 keyid for ECDSA keys (we

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already did this for RSA keys). Avoids fatal errors for PKCS#11 libraries
that return empty keyid, e.g. Microchip ATECC608B "cryptoauthlib"; bz#3364

OpenBSD-Commit-ID: 054d4dc1d6a99a2e6f8eebc48207b534057c154d
This commit is contained in:
djm@openbsd.org 2021-11-18 21:11:01 +00:00 committed by Damien Miller
parent c74aa0eb73
commit 97f9b6e613
1 changed files with 5 additions and 4 deletions
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9
ssh-pkcs11.c
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@ -1,4 +1,4 @@
/* $OpenBSD: ssh-pkcs11.c,v 1.54 2021/08/11 05:20:17 djm Exp $ */
/* $OpenBSD: ssh-pkcs11.c,v 1.55 2021/11/18 21:11:01 djm Exp $ */
/*
* Copyright (c) 2010 Markus Friedl. All rights reserved.
* Copyright (c) 2014 Pedro Martelletto. All rights reserved.
@ -611,9 +611,10 @@ pkcs11_ecdsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
k11->slotidx = slotidx;
/* identify key object on smartcard */
k11->keyid_len = keyid_attrib->ulValueLen;
k11->keyid = xmalloc(k11->keyid_len);
memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
if (k11->keyid_len > 0) {
k11->keyid = xmalloc(k11->keyid_len);
memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
}
EC_KEY_set_method(ec, ec_key_method);
EC_KEY_set_ex_data(ec, ec_key_idx, k11);