Authentication flaw

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 615/16/SD 415, SD 617, SD 650/52, SD 800, SD 808, SD 820, and SD 820A, function ce_pkcs1_pss_padding_verify_auto_recover_saltlen assumes that the size of the encoded message is equal to the size of the RSA modulus. This assumption is true for most RSA keys, but it fails when modulus_bitlen % 8 == 1.