> On Thu, 08 Nov 2007 11:57:26 +0900 Tetsuo Handa <[EMAIL PROTECTED]> wrote: > Original patch assumed args->nlen < CTL_MAXNAME, but it can be false. > > Signed-off-by: Tetsuo Handa <[EMAIL PROTECTED]> > > > --- linux-2.6.22-rc2.orig/kernel/sysctl.c 2007-11-08 10:38:17.000000000 > +0900 > +++ linux-2.6.22-rc2/kernel/sysctl.c 2007-11-08 11:24:27.000000000 +0900 > @@ -2609,6 +2609,10 @@ static int deprecated_sysctl_warning(str > int name[CTL_MAXNAME]; > int i; > > + /* Check args->nlen. */ > + if (args->nlen > CTL_MAXNAME) > + return -EFAULT; > + > /* Read in the sysctl name for better debug message logging */ > for (i = 0; i < args->nlen; i++) > if (get_user(name[i], args->name + i))
Well that would have been a nice roothole for someone. Thanks. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
