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src/Mayaqua/Secure.c: fix potential null pointer dereference

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found by coverity

   CID 343528 (#1 of 1): Dereference before null check (REVERSE_INULL)
   check_after_deref: Null-checking name suggests that it may be null,
   but it has already been dereferenced on all paths leading to the
   check.
   438        if (name == NULL || k == NULL || k->private_key == false)
   439        {
   440                sec->Error = SEC_ERROR_BAD_PARAMETER;
   441                return false;
   442        }
This commit is contained in:
Ilya Shipitsin 2023-05-01 06:18:39 +02:00
parent db7d6c83d5
commit c59df82666
1 changed files with 22 additions and 21 deletions
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43
src/Mayaqua/Secure.c
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@ -404,6 +404,28 @@ bool WriteSecKey(SECURE *sec, bool private_obj, char *name, K *k)
UCHAR modules[MAX_SIZE], pub[MAX_SIZE], pri[MAX_SIZE], prime1[MAX_SIZE], prime2[MAX_SIZE]; UCHAR modules[MAX_SIZE], pub[MAX_SIZE], pri[MAX_SIZE], prime1[MAX_SIZE], prime2[MAX_SIZE];
UCHAR exp1[MAX_SIZE], exp2[MAX_SIZE], coeff[MAX_SIZE]; UCHAR exp1[MAX_SIZE], exp2[MAX_SIZE], coeff[MAX_SIZE];
const BIGNUM *n, *e, *d, *p, *q, *dmp1, *dmq1, *iqmp; const BIGNUM *n, *e, *d, *p, *q, *dmp1, *dmq1, *iqmp;
// Validate arguments
if (sec == NULL)
{
return false;
}
if (name == NULL || k == NULL || k->private_key == false)
{
sec->Error = SEC_ERROR_BAD_PARAMETER;
return false;
}
if (sec->SessionCreated == false)
{
sec->Error = SEC_ERROR_NO_SESSION;
return false;
}
if (sec->LoginFlag == false && private_obj)
{
sec->Error = SEC_ERROR_NOT_LOGIN;
return false;
}
CK_ATTRIBUTE a[] = CK_ATTRIBUTE a[] =
{ {
{CKA_MODULUS, modules, 0}, // 0 {CKA_MODULUS, modules, 0}, // 0
@ -430,27 +452,6 @@ bool WriteSecKey(SECURE *sec, bool private_obj, char *name, K *k)
{CKA_MODIFIABLE, &b_false, sizeof(b_false)}, {CKA_MODIFIABLE, &b_false, sizeof(b_false)},
}; };
// Validate arguments
if (sec == NULL)
{
return false;
}
if (name == NULL || k == NULL || k->private_key == false)
{
sec->Error = SEC_ERROR_BAD_PARAMETER;
return false;
}
if (sec->SessionCreated == false)
{
sec->Error = SEC_ERROR_NO_SESSION;
return false;
}
if (sec->LoginFlag == false && private_obj)
{
sec->Error = SEC_ERROR_NOT_LOGIN;
return false;
}
// Numeric data generation // Numeric data generation
rsa = EVP_PKEY_get0_RSA(k->pkey); rsa = EVP_PKEY_get0_RSA(k->pkey);
if (rsa == NULL) if (rsa == NULL)