Failing ASN.1 tests with PKINIT on HP-UX

[Greg Hudson]

On 9/28/25 07:36, Osipov, Michael (IN IT IN) wrote:
> Here is the full stacktrace:
[...]
>> #28 0x60000000c8a87c20:0 in encode_krb5_auth_pack () at 
>> asn1_k_encode.c:1513
>> #29 0x4011340:0 in main () at krb5_encode_test.c:798

Okay, it's nothing so exotic as a misplaced function pointer; we're just 
at a different point in main() from what we originally thought (line 
798, not lines 775-778).

Walking carefully through the stack trace, I can deduce that the failure 
happens when trying to encode the algorithm identifier within the 
paChecksum2 field of the PKAuthenticator. 
ktest_make_sample_pk_authenticator() doesn't intentionally include a 
paChecksum2 field, but it doesn't null it either.  So this is a 
straightforward use of uninitialized memory, obscured on other platforms 
because the pointer value happens to be 0 there.  (And asan/valgrind 
don't catch it, presumably because the memory was written to earlier 
within structures of different types.)

I will open a PR.