On Wed, 15 Aug 2007, Chuck Ebbert wrote:
> But your patch is enabling randomization for x86_64, because CONFIG_X86
> includes both 32 and 64 bit archs.
Hi Chuck,
yes, and this is addressed by the second patch I have sent yesterday,
which enables flexmmap for x86_64.
--
Jiri Kosina
SUSE Labs
On 08/14/2007 04:41 PM, Jiri Kosina wrote:
> (added Arjan to CC, as he has been working on the kernel part of the
> randomization previously)
>
> On Tue, 14 Aug 2007, Jakub Jelinek wrote:
>
>> If I'm reading the above hunk correctly, this means we will randomize
>> all PIEs and even all dynamic
Hi,
On Wed, Aug 15, 2007 at 01:21:37AM +0200, Jiri Kosina wrote:
> The following patch fixes the brk-allocation problems on x86_64 with code
> randomization patch on PIE-compiled binaries. Is anyone aware of any
> potential disaster it might cause somewhere please?
(Adding myself to this thread
On Tue, 14 Aug 2007, Jiri Kosina wrote:
> It turned out recently that PIE-compiled binaries on x86_64, that
> perform larger amount of brk-allocations (for example bash) will not
> work (but they will work on ?86). This is because currently on ?86 the
> memory layout is as follows:
(Andi added
(added Arjan to CC, as he has been working on the kernel part of the
randomization previously)
On Tue, 14 Aug 2007, Jakub Jelinek wrote:
> If I'm reading the above hunk correctly, this means we will randomize
> all PIEs and even all dynamic linkers invoked as executables on i?86 and
> x86_64,
On Wed, Aug 08, 2007 at 04:03:07PM +0200, Jiri Kosina wrote:
> @@ -870,11 +917,15 @@ static int load_elf_binary(struct linux_binprm *bprm,
> struct pt_regs *regs)
>* default mmap base, as well as whatever program they
>* might try to exec. This is b
Hi Andrew,
below is a respin of the patch for executable code address randomization
of PIE binaries, which already went through -mm into 2.6.22, but then got
reverted because of bugreports stating that klibc binaries segfault due to
this patch. However it turned out that this was bug in klibc 1
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