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 |
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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(); > }
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