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Add corruption detected return when writing asn1

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Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
This commit is contained in:
Agathiyan Bragadeesh 2023-08-22 16:29:39 +01:00
parent ba386ec23e
commit 07f472a88b
1 changed files with 8 additions and 2 deletions
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10
library/x509.c
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@ -875,8 +875,14 @@ int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn)
s[0] = '#';
asn1_len_p = asn1_tag_len_buf + 10;
asn1_len_size = mbedtls_asn1_write_len(&asn1_len_p, asn1_tag_len_buf, name->val.len);
asn1_tag_size = mbedtls_asn1_write_tag(&asn1_len_p, asn1_tag_len_buf, name->val.tag);
if((ret = mbedtls_asn1_write_len(&asn1_len_p, asn1_tag_len_buf, name->val.len)) < 0) {
return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
}
asn1_len_size = ret;
if((ret = mbedtls_asn1_write_tag(&asn1_len_p, asn1_tag_len_buf, name->val.tag)) < 0) {
return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
}
asn1_tag_size = ret;
asn1_tag_len_buf_start = 10 - asn1_len_size - asn1_tag_size;
for (i = 0, j = 1; i < asn1_len_size + asn1_tag_size; i++) {
if (j + 1 >= sizeof(s) - 1) {