[PATCH] dnssec-keygen: double free after keygen error

Hello,

while I was playing with FIPS mode support, I found dnssec-keygen is crashing reliably in that mode. If RSA_generate_key_ex fails for any reason and OpenSSL 1.1+ is used, freed pointer is not reset to null. In err label it is then freed again. I doubt it is possible to trigger this error remotely, but it might be security related. I will leave that to you for consideration. I think always assigning explicit NULL outside BN_GENCB_free would not hurt. Changed by the second patch.

Is there reason why EVP_PKEY_CTX is not used for key generation instead? Is patch with more recent generic API welcome?

0001-Fix-double-free-on-RSA_generate_key_ex-failure.patch 0002-Do-not-assign-NULL-conditionally-in-OpenSSL-1.1-make.patch

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