diff options
| author | Alon Bar-Lev <alon.barlev@gmail.com> | 2022-07-26 15:17:06 +0300 |
|---|---|---|
| committer | Hugo Landau <hlandau@openssl.org> | 2022-07-28 10:07:33 +0100 |
| commit | 9154fa3603ba49ffba3b3d2a19f75afde08ef32d (patch) | |
| tree | 9938b16066248beb712bf59079eac09b61a1e5e9 /crypto/asn1 | |
| parent | 6ec0318130a31372c7f7da272afee2441a5b8b94 (diff) | |
Handle SMIME_crlf_copy return code
Currently the SMIME_crlf_copy result is ignored in all usages. It does
return failure when memory allocation fails.
This patch handles the SMIME_crlf_copy return code in all occurrences.
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18876)
(cherry picked from commit 67c0460b89cc1b0644a1a59af78284dfd8d720af)
Diffstat (limited to 'crypto/asn1')
| -rw-r--r-- | crypto/asn1/asn_mime.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/crypto/asn1/asn_mime.c b/crypto/asn1/asn_mime.c index 1b8ac34106..f9cb9985d6 100644 --- a/crypto/asn1/asn_mime.c +++ b/crypto/asn1/asn_mime.c @@ -69,6 +69,8 @@ static void mime_hdr_free(MIME_HEADER *hdr); int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags, const ASN1_ITEM *it) { + int rv = 1; + /* If streaming create stream BIO and copy all content through it */ if (flags & SMIME_STREAM) { BIO *bio, *tbio; @@ -77,7 +79,10 @@ int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags, ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); return 0; } - SMIME_crlf_copy(in, bio, flags); + if (!SMIME_crlf_copy(in, bio, flags)) { + rv = 0; + } + (void)BIO_flush(bio); /* Free up successive BIOs until we hit the old output BIO */ do { @@ -92,7 +97,7 @@ int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags, */ else ASN1_item_i2d_bio(it, out, val); - return 1; + return rv; } /* Base 64 read and write of ASN1 structure */ @@ -346,8 +351,7 @@ static int asn1_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags, * set up to finalise when it is written through. */ if (!(flags & SMIME_DETACHED) || (flags & PKCS7_REUSE_DIGEST)) { - SMIME_crlf_copy(data, out, flags); - return 1; + return SMIME_crlf_copy(data, out, flags); } if (!aux || !aux->asn1_cb) { @@ -365,7 +369,8 @@ static int asn1_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags, return 0; /* Copy data across, passing through filter BIOs for processing */ - SMIME_crlf_copy(data, sarg.ndef_bio, flags); + if (!SMIME_crlf_copy(data, sarg.ndef_bio, flags)) + rv = 0; /* Finalize structure */ if (aux->asn1_cb(ASN1_OP_DETACHED_POST, &val, it, &sarg) <= 0) @@ -515,8 +520,10 @@ int SMIME_crlf_copy(BIO *in, BIO *out, int flags) * when streaming as we don't end up with one OCTET STRING per line. */ bf = BIO_new(BIO_f_buffer()); - if (bf == NULL) + if (bf == NULL) { + ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); return 0; + } out = BIO_push(bf, out); if (flags & SMIME_BINARY) { while ((len = BIO_read(in, linebuf, MAX_SMLEN)) > 0) |