On Fri, 11 May 2007 14:33:46 +0200 (CEST)
Jan Kratochvil <[email protected]> wrote:
> Hello,
> I sent this patch 5 days ago, nobody replied. So I am giving it second
> attempt.
> Andrew, is it possible to test this in -mm branch?
> Original mail follows:
>
> Hi,
> this is something like reaction to this thread:
> http://lkml.org/lkml/2007/1/6/124. I hope I was able to separate the PIE
> randomization part correctly.
>
> There is platform specific (__i386__ only) part in exec shield, I am not
> pretty sure why is it there, but wasn't brave enough to touch it. Can
> someone comment the #ifdef out and test it on some other platform?
>
> It will be nice to follow with brk randomization, but in exec-shield it is
> afaik i386 only. Right?
>
> Randomizes -pie compiled binaries. The implementation is part of Redhat's
> exec-shield (http://people.redhat.com/mingo/exec-shield/).
>
I don't know what to do with this. The changelog doesn't tell me what PIE
randomization _is_, nor why the kernel would want to do it.
"Randomizing -pie compiled binaries" sounds fairly undesirable, actually ;)
>
> diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
> index 9cc4f0a..1156f41 100644
> --- a/fs/binfmt_elf.c
> +++ b/fs/binfmt_elf.c
> @@ -45,7 +45,7 @@
>
> static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs);
> static int load_elf_library(struct file *);
> -static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int);
> +static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long);
Your email client is space-stuffing the patches. That's easy to fix at the
receiving end, but it'd be better to fix it at the sending end, please.
-
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