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Wed, 26 Aug 2020 04:11:36 -0400 (EDT) Received: from localhost (xps [10.192.0.12]) by vm-mail.pks.im (OpenSMTPD) with ESMTPSA id d24bb539 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Wed, 26 Aug 2020 08:11:36 +0000 (UTC) Date: Wed, 26 Aug 2020 10:13:34 +0200 From: Patrick Steinhardt To: grub-devel@gnu.org Cc: Denis GNUtoo Carikli , Glenn Washburn , Daniel Kiper Subject: [PATCH v2 3/9] luks2: Fix use of incorrect index and some error messages Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="VS++wcV0S1rZb1Fb" Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=64.147.123.24; envelope-from=ps@pks.im; helo=wout1-smtp.messagingengine.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/26 03:16:08 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Aug 2020 08:11:42 -0000 --VS++wcV0S1rZb1Fb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable =46rom: Glenn Washburn Signed-off-by: Glenn Washburn Reviewed-by: Patrick Steinhardt --- grub-core/disk/luks2.c | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/grub-core/disk/luks2.c b/grub-core/disk/luks2.c index e3ff7c83d..c4c6ac90c 100644 --- a/grub-core/disk/luks2.c +++ b/grub-core/disk/luks2.c @@ -255,54 +255,55 @@ luks2_parse_digest (grub_luks2_digest_t *out, const g= rub_json_t *digest) =20 static grub_err_t luks2_get_keyslot (grub_luks2_keyslot_t *k, grub_luks2_digest_t *d, grub_l= uks2_segment_t *s, - const grub_json_t *root, grub_size_t i) + const grub_json_t *root, grub_size_t keyslot_idx) { grub_json_t keyslots, keyslot, digests, digest, segments, segment; - grub_size_t j, size; - grub_uint64_t idx; + grub_size_t i, size; + grub_uint64_t keyslot_key, digest_key, segment_key; =20 /* Get nth keyslot */ if (grub_json_getvalue (&keyslots, root, "keyslots") || - grub_json_getchild (&keyslot, &keyslots, i) || - grub_json_getuint64 (&idx, &keyslot, NULL) || + grub_json_getchild (&keyslot, &keyslots, keyslot_idx) || + grub_json_getuint64 (&keyslot_key, &keyslot, NULL) || grub_json_getchild (&keyslot, &keyslot, 0) || luks2_parse_keyslot (k, &keyslot)) - return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse keyslot %"P= RIuGRUB_SIZE, i); + return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse keyslot ind= ex %"PRIuGRUB_SIZE, keyslot_idx); =20 /* Get digest that matches the keyslot. */ if (grub_json_getvalue (&digests, root, "digests") || grub_json_getsize (&size, &digests)) return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not get digests"); - for (j =3D 0; j < size; j++) + for (i =3D 0; i < size; i++) { if (grub_json_getchild (&digest, &digests, i) || + grub_json_getuint64 (&digest_key, &digest, NULL) || grub_json_getchild (&digest, &digest, 0) || luks2_parse_digest (d, &digest)) - return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse digest %"PRIuG= RUB_SIZE, i); + return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse digest index %= "PRIuGRUB_SIZE, i); =20 - if ((d->keyslots & (1 << idx))) + if ((d->keyslots & (1 << keyslot_key))) break; } - if (j =3D=3D size) - return grub_error (GRUB_ERR_FILE_NOT_FOUND, "No digest for keyslot %= "PRIuGRUB_SIZE); + if (i =3D=3D size) + return grub_error (GRUB_ERR_FILE_NOT_FOUND, "No digest for keyslot \= "%"PRIuGRUB_UINT64_T"\"", keyslot_key); =20 /* Get segment that matches the digest. */ if (grub_json_getvalue (&segments, root, "segments") || grub_json_getsize (&size, &segments)) return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not get segments"); - for (j =3D 0; j < size; j++) + for (i =3D 0; i < size; i++) { if (grub_json_getchild (&segment, &segments, i) || - grub_json_getuint64 (&idx, &segment, NULL) || + grub_json_getuint64 (&segment_key, &segment, NULL) || grub_json_getchild (&segment, &segment, 0) || luks2_parse_segment (s, &segment)) - return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse segment %"PRIu= GRUB_SIZE, i); + return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse segment index = %"PRIuGRUB_SIZE, i); =20 - if ((d->segments & (1 << idx))) + if ((d->segments & (1 << segment_key))) break; } - if (j =3D=3D size) - return grub_error (GRUB_ERR_FILE_NOT_FOUND, "No segment for digest %"P= RIuGRUB_SIZE); + if (i =3D=3D size) + return grub_error (GRUB_ERR_FILE_NOT_FOUND, "No segment for digest \"%= "PRIuGRUB_UINT64_T"\"", digest_key); =20 return GRUB_ERR_NONE; } --=20 2.28.0 --VS++wcV0S1rZb1Fb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEF9hrgiFbCdvenl/rVbJhu7ckPpQFAl9GGa0ACgkQVbJhu7ck PpQbNg//b4uoYnbRNanArPSu7jtIIq30dd7Xx4q0BWFpuKprWZ+Dlvd8RH4Zh0Qt sMCVH4lwfSQd5WEKJVwPTzrCNvg937Qv/MR3FTIUGu5Ua65qDo71ZyNrjrq7U8f1 v7oK0EpOWFidIfQZQYAAmN4bZitrly8rmwjwnLVmwwok2j/kiGdOhrep8GrrjarK 92R1xaryJryc9A0WNdfw4VB2AXiDkFykgsxUI1j1WH0i8oNrkzdrHZeor/1GU8pV E2sYbCxodVI40mbnDkR7qIVS1zgo4isCa/Dcu3zwI069zHLh6K89MVVDkPWZvpli 2ONMrH3RzAO+O+hlruSA9n0/rCe8NALHdo6Xo3rVTk2auqAFDiqxipENUBl2Sp81 +yi0TKUkyppoqdH7wqb+DnPJycbhct5+Nb3zv0bj5YMFYAHkFbd1KLkQ35apWt6d BsP767tl8hbVf9wTiiYyxJ6wkTjqONoZ4HtBXCwXZ+Adrzfw4MRG4ODB4dhxk53q DtNTMN7EiaqvLjiK62uLAtguhlaiKGKCdME5lfabXWHiKpacMjX1VqI/j4zqfDjp Md3jwRQ38MtdzN1T+FjOdfoXkmCb7P9WUhM4ZXT3zrqsO+GNmqsdNuWF9gbQHArS aU93bbdBHJXivBk4oP8j91O8Sb8zTXulaEFRdoT1yAxHNnTCqGc= =mYCf -----END PGP SIGNATURE----- --VS++wcV0S1rZb1Fb--