* add support for DEBUG_LINUXKM_FORTIFY_OVERLAY to allow KASAN analysis of the overlay without actually enabling CONFIG_FORTIFY_SOURCE (which is buggy in combination with KASAN).
* make SAVE_VECTOR_REGISTERS2 definition conditional on !defined(SAVE_VECTOR_REGISTERS2).
wolfssl/wolfcrypt/memory.h: fix the DEBUG_VECTOR_REGISTER_ACCESS definition for SAVE_VECTOR_REGISTERS to properly omit the on-success bookkeeping code even if the supplied fail_clause doesn't return.
wolfcrypt/src/rsa.c: in wc_MakeRsaKey() primality loop, invoke RESTORE_VECTOR_REGISTERS() SAVE_VECTOR_REGISTERS() to prevent lengthy kernel lockups.
wolfcrypt/src/dh.c: in wc_DhGenerateParams() primality loop, invoke RESTORE_VECTOR_REGISTERS() SAVE_VECTOR_REGISTERS() to prevent lengthy kernel lockups.
wolfcrypt/src/{curve25519.c,dh.c,dsa.c,ecc.c,eccsi.c,rsa.c,sakke.c,sp_int.c}: when WOLFSSL_LINUXKM, force {SAVE,RESTORE}_VECTOR_REGISTERS() to WC_DO_NOTHING if settings gate out applicable asm.
tweak several #includes of settings.h to include types.h instead (all of these are for clarity, as types.h is indirectly included by later #includes), and add #include <wolfssl/wolfcrypt/types.h> where missing;
remove trailing semicolons from PRAGMA*() macro invocations as they are unneeded and can be harmful (inducing frivolous -Wdeclaration-after-statement etc.).
Changed EXPECT_DECL to start of as TEST_SKIPPED.
Modified other EXPECT macros appropriately.
Change test functions to not use 'res' when EXPECT_DECL is used.
memory.c:
wc_MemFailCount_Init(): don't declare variable after a statement
conf.c:
wolfSSL_TXT_DB_read(): free the whole WOLFSSL_TXT_DB on failure
instead of just the memory
wolfSSL_CONF_add_string(): pop the value added into section->value
(sk) if it can't be pushed onto conf->data
wolfSSL_NCONF_load(): free the new value if it wasn't able to be added
ocsp.c:
wolfSSL_OCSP_cert_to_id():
free the decoded certificate if parsing failed (is freed after use
otherwise)
free the certificate id on failure and make it NULL and continue
freeing other variables
pk.c:
wolfSSL_RSA_set0_crt_params(): set dmp1, dmq1 and iqmp fields to NULL
if setting the internal failed - returns error and caller needs to free
the passed in BNs
wolfSSL_RSA_set0_factors(): set p and q fields to NULL if setting the
internal failed - returns error and caller needs to free the passed in
BNs
wolfSSL_RSA_set0_key(): set n, e abd d fields to NULL if setting the
internal failed - returns error and caller needs to free the passed in
BNs
x509.c:
wolfSSL_X509_set_serialNumber(): explicit NULL
checkwolfSSL_X509_REQ_add1_attr_by_NID(): check whether push succeeded
and on failure free attribute
asn.c:
ConfirmSignature(): for DSA, allocate separately to ensure no leak on
memory allocation failure.
dh.c:
wc_DhGenerateParams(): ensure tmp and tmp2 are able to be cleared on
error
evp.c:
wolfSSL_EVP_PKEY_CTX_add1_hkdf_info(): fix realloc use to no leak on
failure
wolfSSL_EVP_CIPHER_CTX_iv_length(): handle ctx being NULL.
Fix checking of negative with unsigned variables.
Check digestSz for 0 in wc_SSH_KDF() so that no possibility of dividing
by zero.
Change XMEMCPY to XMEMSET in renesas_sce_util.c.
Fix test.c to free prvTmp and pubTmp on read error.
Remove unused variables.
XFREE checks for NULL so don't check before call.
Move variable declarations to reduce scope.
Fix for GeneratePublicDh was not right in #6002.
sp_DhExp_* are called from multiple functions.
Sometimes outLen contains a value and sometimes not.
Check public key output size in GeneratePublicDh before calling SP.
Don't ForceZero the output buffer before free.
ForceZero it when encryption fails.
ShrinkInputBuffer needs to zeroize input buffer even if not currently
encrypting as it may be using the buffer on wolfSSL object reuse.
Fix SP to zeroize the whole buffer.
Fix DH to check cBuf when WOLFSSL_CHECK_MEM_ZERO defined.
Add a define WOLFSSL_CHECK_MEM_ZERO to turn on code that checks that
memory that must be zeroized before going out of use is zero.
Everytime sensitive data is put into a allocated buffer or stack buffer;
the address, its length and a name is stored to be checked later.
Where the stack buffer is about to go out of use, a call is added to
check that the required parts are zero.
wc_MemZero_Add() adds an address with length and name to a table of
addressed to be checked later.
wc_MemZero_Check() checks that the memory associated with the address is
zeroized where required.
mp_memzero_add() adds mp_int's data pointer with length and name to
table.
mp_memzero_check() checks that the data pointer is zeroized where
required.
Freeing memory will check the address. The length was prepended on
allocation.
Realloction was changed for WOLFSSL_CHECK_MEM_ZERO to perform an
allocate, check, copy, free.
the condition to perform the small key test. The small key is
mathematically valid, but does not necessarily pass the SP 800-56Ar3
test for DH keys. The most recent FIPS build will add the tested file.
This change is only used in the older FIPS releases and in some rare
configurations that include the small key test.
