Messages in this thread |  | | | Subject | Re: StackProtector Oopses - Re: 2.6.25-mm1 | | From | Valdis.Kletnieks@vt ... | | Date | Mon, 21 Apr 2008 22:04:27 -0400 |
On Mon, 21 Apr 2008 18:48:59 PDT, Arjan van de Ven said:
Typo alert?
> diff --git a/kernel/panic.c b/kernel/panic.c
> index c92c1e2..b4a6a05 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -351,7 +351,10 @@ static noinline void __stack_chk_test_func(void)
> }
> #endif
> barrier();
> - memset(&foo, 0, 2*sizeof(foo)); /* deliberate buffer overflow */
> + if (current->stack_canary == *(((unsigned long *)&foo)+1))
> + *(((unsigned long *)&foo)+1) = 0;
> + else
> + printk(KERN_ERR "No -ftack-protector canary found\n");
-fstack?
> barrier();
> }
[unhandled content-type:application/pgp-signature] |  |