Am Montag, 18. Mai 2015, 11:02:34 schrieb Theodore Ts'o: Hi Theodore, Herbert, > > The simplest thing to do is to put a refcount on inside the DRBG > handle structure. The caller instantiates the DRBG handle, and > invokes the the DRBG. The DRBG, since it is kicking off an > asynchronous operation, increments the refcount.
That is a good idea. After experimenting with the refcount, I see that kernel crypto API release function of crypto_destroy_tfm unconditionally destroys the crypto handle by freeing it. So, if a caller releases the DRBG handle, the DRBG code cannot prevent the destruction of its context with a refcount. Herbert, do you have any ideas? -- Ciao Stephan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
