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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752571783; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kndUoe+oQHcVzDMfxMKx+MGXBHMBBeNzS/HDajdGQfY=; b=EjlpBP6xg2cBHPHQ2n1LmD4JHTxKNiQevlzed4++TFFy2YNfdBcPa6HC/mc+jPbU1ZGgNM 4xxtcH1rWg+9RcpkUt462zsJ+jHJblEZF91srgO8lbTPiB3XAcNKl43oXBn2ZB0J8eXPQ+ hMdsiy8JQGvh9HGYAe2GO1PUIOwNUCI= X-MC-Unique: voqnq0LWMMqJ84hha4fYnA-1 X-Mimecast-MFC-AGG-ID: voqnq0LWMMqJ84hha4fYnA_1752571781 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Henry Kleynhans Subject: [PATCH 3/7] crypto: load all certificates in X509 CA file Date: Tue, 15 Jul 2025 10:29:28 +0100 Message-ID: <20250715092932.1395271-4-berrange@redhat.com> In-Reply-To: <20250715092932.1395271-1-berrange@redhat.com> References: <20250715092932.1395271-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1752572089530116600 From: Henry Kleynhans Some CA files may contain multiple intermediaries and roots of trust. These may not fit into the hard-coded limit of 16. Extend the validation code to allocate enough space to load all of the certificates present in the CA file and ensure they are cleaned up. Reviewed-by: Daniel P. Berrang=C3=A9 Signed-off-by: Henry Kleynhans [DB: drop MAX_CERTS constant & whitespace tweaks] Signed-off-by: Daniel P. Berrang=C3=A9 --- crypto/tlscredsx509.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c index 997602ec6b..3e3ec4971f 100644 --- a/crypto/tlscredsx509.c +++ b/crypto/tlscredsx509.c @@ -418,9 +418,8 @@ qcrypto_tls_creds_load_cert(QCryptoTLSCredsX509 *creds, static int qcrypto_tls_creds_load_ca_cert_list(QCryptoTLSCredsX509 *creds, const char *certFile, - gnutls_x509_crt_t *certs, - unsigned int certMax, - size_t *ncerts, + gnutls_x509_crt_t **certs, + unsigned int *ncerts, Error **errp) { gnutls_datum_t data; @@ -441,20 +440,18 @@ qcrypto_tls_creds_load_ca_cert_list(QCryptoTLSCredsX5= 09 *creds, data.data =3D (unsigned char *)buf; data.size =3D strlen(buf); =20 - if (gnutls_x509_crt_list_import(certs, &certMax, &data, - GNUTLS_X509_FMT_PEM, 0) < 0) { + if (gnutls_x509_crt_list_import2(certs, ncerts, &data, + GNUTLS_X509_FMT_PEM, 0) < 0) { error_setg(errp, "Unable to import CA certificate list %s", certFile); return -1; } - *ncerts =3D certMax; =20 return 0; } =20 =20 -#define MAX_CERTS 16 static int qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509 *creds, bool isServer, @@ -463,12 +460,11 @@ qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX5= 09 *creds, Error **errp) { gnutls_x509_crt_t cert =3D NULL; - gnutls_x509_crt_t cacerts[MAX_CERTS]; - size_t ncacerts =3D 0; + gnutls_x509_crt_t *cacerts =3D NULL; + unsigned int ncacerts =3D 0; size_t i; int ret =3D -1; =20 - memset(cacerts, 0, sizeof(cacerts)); if (certFile && access(certFile, R_OK) =3D=3D 0) { cert =3D qcrypto_tls_creds_load_cert(creds, @@ -480,8 +476,9 @@ qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509= *creds, } if (access(cacertFile, R_OK) =3D=3D 0) { if (qcrypto_tls_creds_load_ca_cert_list(creds, - cacertFile, cacerts, - MAX_CERTS, &ncacerts, + cacertFile, + &cacerts, + &ncacerts, errp) < 0) { goto cleanup; } @@ -518,6 +515,8 @@ qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509= *creds, for (i =3D 0; i < ncacerts; i++) { gnutls_x509_crt_deinit(cacerts[i]); } + gnutls_free(cacerts); + return ret; } =20 --=20 2.49.0