Don't set *pval to NULL in asn1_item_ex_combine_new.

While *pval is usually a pointer in rare circumstances it can be a long
value. One some platforms (e.g. WIN64) where
sizeof(long) < sizeof(ASN1_VALUE *) this will write past the field.

*pval is initialised correctly in the rest of ASN1_item_ex_new so setting it
to NULL is unecessary anyway.

Thanks to Julien Kauffmann for reporting this issue.

(Imported from upstream's f617b4969a9261b9d7d381670aefbe2cf766a2cb.)

Change-Id: I8cc777f7ab126dcef3a0278a82d3fc91faf4c231
Reviewed-on: https://boringssl-review.googlesource.com/4510
Reviewed-by: Adam Langley <agl@google.com>
1 file changed