On Sun, Nov 30, 2014 at 05:59:34PM +0100, Julia Lawall wrote: > From: Julia Lawall <julia@xxxxxxx> > > Memset on a local variable may be removed when it is called just before the > variable goes out of scope. Using memzero_explicit defeats this > optimization. A simplified version of the semantic patch that makes this > change is as follows: (http://coccinelle.lip6.fr/) > > // <smpl> > @@ > identifier x; > type T; > @@ > > { > ... when any > T x[...]; > ... when any > when exists > - memset > + memzero_explicit > (x, > -0, > ...) > ... when != x > when strict > } > // </smpl> > > This change was suggested by Daniel Borkmann <dborkman@xxxxxxxxxx> > > Signed-off-by: Julia Lawall <julia@xxxxxxx> > > --- > Daniel Borkmann suggested that these patches could go through Herbert Xu's > cryptodev tree. Why? There's no dependancy on anything in the cryptodev tree, memzero_explicit is in Linus's tree now. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
