From: Stephan Mueller <smueller@xxxxxxxxxx> 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit cde001e4c3c3625c60b68a83eb1f1c2572dee07a upstream. Change the RNGs to always return 0 in success case. This patch ensures that seqiv.c works with RNGs other than krng. seqiv expects that any return code other than 0 is an error. Without the patch, rfc4106(gcm(aes)) will not work when using a DRBG or an ANSI X9.31 RNG. Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- crypto/ansi_cprng.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c index 6f5bebc9bf01..765fe7609348 100644 --- a/crypto/ansi_cprng.c +++ b/crypto/ansi_cprng.c @@ -210,7 +210,11 @@ static int get_prng_bytes(char *buf, size_t nbytes, struct prng_context *ctx, byte_count = DEFAULT_BLK_SZ; } - err = byte_count; + /* + * Return 0 in case of success as mandated by the kernel + * crypto API interface definition. + */ + err = 0; dbgprint(KERN_CRIT "getting %d random bytes for context %p\n", byte_count, ctx); -- 2.4.2 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html