diff options
| author | Eric Biggers <ebiggers@google.com> | 2017-12-08 15:13:29 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-12-08 15:13:29 +0000 |
| commit | 8dce1988dfaa3668372990f05ee2202d9d9521b5 (patch) | |
| tree | 149f57c9ce794734883e326d63040b1381dc1a59 | |
| parent | 46eec7256a769678fc3b05803c60dd22e65e153f (diff) | |
| download | linux-crypto-8dce1988dfaa3668372990f05ee2202d9d9521b5.tar.gz linux-crypto-8dce1988dfaa3668372990f05ee2202d9d9521b5.zip | |
X.509: fix comparisons of ->pkey_algo
->pkey_algo used to be an enum, but was changed to a string by commit
4a2d8af15954 ("X.509: Make algo identifiers text instead of enum"). But
two comparisons were not updated. Fix them to use strcmp().
This bug broke signature verification in certain configurations,
depending on whether the string constants were deduplicated or not.
Fixes: 4a2d8af15954 ("X.509: Make algo identifiers text instead of enum")
Cc: <stable@vger.kernel.org> # v4.6+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
| -rw-r--r-- | crypto/asymmetric_keys/pkcs7_verify.c | 2 | ||||
| -rw-r--r-- | crypto/asymmetric_keys/x509_public_key.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c index 255e84ab..39e6de0c 100644 --- a/crypto/asymmetric_keys/pkcs7_verify.c +++ b/crypto/asymmetric_keys/pkcs7_verify.c @@ -147,7 +147,7 @@ static int pkcs7_find_key(struct pkcs7_message *pkcs7, pr_devel("Sig %u: Found cert serial match X.509[%u]\n", sinfo->index, certix); - if (x509->pub->pkey_algo != sinfo->sig->pkey_algo) { + if (strcmp(x509->pub->pkey_algo, sinfo->sig->pkey_algo) != 0) { pr_warn("Sig %u: X.509 algo and PKCS#7 sig algo don't match\n", sinfo->index); continue; diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c index e67fd29f..9338b455 100644 --- a/crypto/asymmetric_keys/x509_public_key.c +++ b/crypto/asymmetric_keys/x509_public_key.c @@ -131,7 +131,7 @@ int x509_check_for_self_signed(struct x509_certificate *cert) } ret = -EKEYREJECTED; - if (cert->pub->pkey_algo != cert->sig->pkey_algo) + if (strcmp(cert->pub->pkey_algo, cert->sig->pkey_algo) != 0) goto out; ret = public_key_verify_signature(cert->pub, cert->sig); |