On Mon, May 01, 2017 at 10:36:59AM -0700, Kees Cook wrote:
> >> +#ifdef CONFIG_FAST_REFCOUNT
> >> +static DEFINE_RATELIMIT_STATE(refcount_ratelimit, 15 * HZ, 3);
> >> +
> >> +void refcount_error_report(struct pt_regs *regs, const char *kind)
> >> +{
> >> + do_send_sig_info(SIGKILL, SEND_SIG_FOR
On Mon, May 01, 2017 at 10:28:53AM -0700, Kees Cook wrote:
> On Mon, May 1, 2017 at 8:54 AM, Josh Poimboeuf wrote:
> > On Thu, Apr 27, 2017 at 01:22:05PM -0700, Kees Cook wrote:
> >> +#define __REFCOUNT_EXCEPTION(size) \
> >> + ".if "__stringify(size)" == 4\n\t"
On Mon, May 1, 2017 at 9:30 AM, Josh Poimboeuf wrote:
>> +#define __REFCOUNT_EXCEPTION(size) \
>> + ".if "__stringify(size)" == 4\n\t" \
>> + ".pushsection .text.refcount_overflow\n"\
>> + ".elseif "__stringify(size)" == -4\n\t" \
>> +
On Mon, May 1, 2017 at 8:54 AM, Josh Poimboeuf wrote:
> On Thu, Apr 27, 2017 at 01:22:05PM -0700, Kees Cook wrote:
>> On Wed, Apr 26, 2017 at 6:31 PM, kbuild test robot wrote:
>> > Hi Kees,
>> >
>> > [auto build test WARNING on next-20170424]
>> > [cannot apply to tip/x86/core linus/master linux/
> +#define __REFCOUNT_EXCEPTION(size) \
> + ".if "__stringify(size)" == 4\n\t" \
> + ".pushsection .text.refcount_overflow\n"\
> + ".elseif "__stringify(size)" == -4\n\t" \
> + ".pushsection .text.refcount_underflow\n" \
> + "
On Thu, Apr 27, 2017 at 01:22:05PM -0700, Kees Cook wrote:
> On Wed, Apr 26, 2017 at 6:31 PM, kbuild test robot wrote:
> > Hi Kees,
> >
> > [auto build test WARNING on next-20170424]
> > [cannot apply to tip/x86/core linus/master linux/master v4.9-rc8 v4.9-rc7
> > v4.9-rc6 v4.11-rc8]
> > [if your
On Wed, Apr 26, 2017 at 6:31 PM, kbuild test robot wrote:
> Hi Kees,
>
> [auto build test WARNING on next-20170424]
> [cannot apply to tip/x86/core linus/master linux/master v4.9-rc8 v4.9-rc7
> v4.9-rc6 v4.11-rc8]
> [if your patch is applied to the wrong git tree, please drop us a note to
> help
Hi Kees,
[auto build test WARNING on next-20170424]
[cannot apply to tip/x86/core linus/master linux/master v4.9-rc8 v4.9-rc7
v4.9-rc6 v4.11-rc8]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/
On Tue, Apr 25, 2017 at 5:25 PM, Jann Horn wrote:
> On Wed, Apr 26, 2017 at 12:56 AM, Kees Cook wrote:
>> This protection is a modified version of the x86 PAX_REFCOUNT
>> implementation from PaX/grsecurity. This speeds up the refcount_t API by
>> duplicating the existing atomic_t implementation w
On Wed, Apr 26, 2017 at 12:56 AM, Kees Cook wrote:
> This protection is a modified version of the x86 PAX_REFCOUNT
> implementation from PaX/grsecurity. This speeds up the refcount_t API by
> duplicating the existing atomic_t implementation with a single instruction
> added to detect if the refcou
This protection is a modified version of the x86 PAX_REFCOUNT
implementation from PaX/grsecurity. This speeds up the refcount_t API by
duplicating the existing atomic_t implementation with a single instruction
added to detect if the refcount has wrapped past INT_MAX (or below 0)
resulting in a sign
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