Am Dienstag, 30. Januar 2018, 09:27:04 CET schrieb Stephan Müller: Hi, > +/** > + * af_alg_put_iv - release lock on IV in case CTX IV is used > + * > + * @sk [in] AF_ALG socket > + */ > +void af_alg_put_iv(struct sock *sk) > +{ > + struct alg_sock *ask = alg_sk(sk); > + struct af_alg_ctx *ctx = ask->private; > + > + if (!ctx->iiv || !ctx->ivlen) > + mutex_unlock(&ctx->ivlock); > +} > +EXPORT_SYMBOL_GPL(af_alg_put_iv); Having this function implies that ctx->iiv must be set once at the beginning and cannot be toggled for a CTX thereafter as otherwise the release of the mutex is racy. This implies that the inline IV patch needs a slight revision to prevent toggling the ctx->iiv value. I will send a new revision of the inline IV and the lock context IV patch covering this issue. Ciao Stephan