[gnutls-devel] GnuTLS | lib/nettle/pk.c: Add check for gnutls_malloc() (!1986)

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Daiki Ueno started a new discussion on lib/nettle/pk.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1986#note_2628595506

 >  		me = _gnutls_dsa_q_to_hash(params, &hash_len);
 >  		spki.dsa_dig = MAC_TO_DIG(me->id);
 >  		gen_data = gnutls_malloc(hash_len);
 > +		if (gen_data == NULL) {

I suspect we might not need to allocate this buffer in the first place, as it is 64-byte at maximum (see `MAX_HASH_SIZE`), and other branches in this function uses a statically allocated buffer.

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