From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Date: Thu, 15 Jun 2017 17:42:10 +0800 > On Thu, Jun 15, 2017 at 06:04:44PM +0900, Linus Torvalds wrote: >> There's a fair number of SHASH_DESC_ON_STACK users, are all the others >> safe for some random reason that just happens to be about code >> generation? Did people actually verify that? > > If I understand this correctly this is only an issue if you directly > return a value from the shash_desc struct allocated on the stack. > This is usually rare as normally you'd return an error code and the > hash result would be written directly to some memory passed in from > the caller. Correct.
