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fixed invalid read

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fixes https://oss-fuzz.com/testcase-detail/5726023753924608
This commit is contained in:
Frank Morgner 2020-05-18 16:45:24 +02:00
parent 7e1679b2db
commit 4cb9788b99
1 changed files with 2 additions and 0 deletions
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2
src/libopensc/pkcs15-cert.c
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@ -202,6 +202,8 @@ sc_pkcs15_get_name_from_dn(struct sc_context *ctx, const u8 *dn, size_t dn_len,
/* Yes, then return the name */
dummy = sc_asn1_skip_tag(ctx, &ava, &ava_len, ava[0] & SC_ASN1_TAG_PRIMITIVE, &dummy_len);
if (dummy == NULL)
LOG_TEST_RET(ctx, SC_ERROR_INVALID_ASN1_OBJECT, "ASN.1 decoding of AVA name");
if (*name == NULL) {
*name = malloc(dummy_len);
if (*name == NULL)