The drbg_generate returns 0 in success case. That means that drbg_generate_long will always only generate drbg_max_request_bytes at most. Longer requests will be truncated to drbg_max_request_bytes. Reported-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx> --- crypto/drbg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/drbg.c b/crypto/drbg.c index b69409c..74f7c1e 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -1450,7 +1450,7 @@ static int drbg_generate_long(struct drbg_state *drbg, slice = ((buflen - len) / drbg_max_request_bytes(drbg)); chunk = slice ? drbg_max_request_bytes(drbg) : (buflen - len); tmplen = drbg_generate(drbg, buf + len, chunk, addtl); - if (0 >= tmplen) + if (0 > tmplen) return tmplen; len += tmplen; } while (slice > 0 && (len < buflen)); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
