static void tgr192_key_schedule(u64 * x)
{
	x[0] -= x[7] ^ 0xa5a5a5a5a5a5a5a5ULL;
	x[1] ^= x[0];
	x[2] += x[1];
	x[3] -= x[2] ^ ((~x[1]) << 19);
	x[4] ^= x[3];
	x[5] += x[4];
	x[6] -= x[5] ^ ((~x[4]) >> 23);
	x[7] ^= x[6];
	x[0] += x[7];
	x[1] -= x[0] ^ ((~x[7]) << 19);
	x[2] ^= x[1];
	x[3] += x[2];
	x[4] -= x[3] ^ ((~x[2]) >> 23);
	x[5] ^= x[4];
	x[6] += x[5];
	x[7] -= x[6] ^ 0x0123456789abcdefULL;
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.