memcmp() may read unitiliazed memory in tests #623

1. 
   real-or-random commented at 8:56 am on May 23, 2019: contributor

   If len_der != len_der_lax, then we may read uninitialized memory here: https://github.com/bitcoin-core/secp256k1/blob/912680ed8675bbf9c74c4c112ca3c41d27a295d7/src/tests.c#L4318

   This should probably be handled similar to https://github.com/bitcoin-core/secp256k1/blob/912680ed8675bbf9c74c4c112ca3c41d27a295d7/src/tests.c#L4302

   Same issues further below for the OpenSSL roundtrip.

   Loosely related to #532 but I agree that #532 is not a good idea.

2. gmaxwell cross-referenced this on May 25, 2019 from issue Guard memcmp in tests against mixed size inputs. by gmaxwell
3. gmaxwell closed this on May 29, 2019

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4. gmaxwell referenced this in commit ecc94abcc8 on May 29, 2019
5. jonasnick referenced this in commit 103f62b092 on Sep 10, 2019

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