The bug was: return value of my driver's encrypt() function should have been -EINPROGRESS to support asynchronous operation. Thanks. On Thu, May 26, 2016 at 12:29 PM, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote: > Denis B <begun.denis@xxxxxxxxx> wrote: >> Working with kernel 3.12.14, in AEAD mode, I register my crypto driver >> and the givencrypt() method in the driver gets called when I send >> IPSec traffic. I store the request, and later call its complete() >> method from a work queue. There is no actual encryption happening at >> the moment, I'm just testing flow. As stated, the complete() call >> stumbles upon a NULL pointer exception in xfrm_output_resume() because >> skb_dst(skb) is NULL. When I receive the request in givencrypt(), dst >> is not null in the SKB. >> >> Why would the framework meddle with the SKB? Has anyone experienced >> anything similar? > > This is probably the result of some kind of a bug in your driver. > > If however you're sure that your driver is doing the right thing, > then the bug would be in the network stack. You should discuss > networking issues on netdev@xxxxxxxxxxxxxxx. > > Cheers, > -- > Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> > Home Page: http://gondor.apana.org.au/~herbert/ > PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- 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