Re: [PATCH 0/8] v2 - validate binary before use

Aleksandar Ristovski
2013-04-09T15:44:21Z

On 13-04-09 11:36 AM, Jan Kratochvil wrote:
> On Tue, 09 Apr 2013 17:27:37 +0200, Aleksandar Ristovski wrote:
>> Core support:
>> - core will use second method. Note, however, that due to (at least
>> on ubuntu) not dumping page containing buid-id in the core, the
>> validation can not be performed (it will always default to valid).
>> This is misfortunate but outside the scope of this patch.
>
> FYI it is bit 4 in /proc/self/coredump_filter, Fedora has the default 0x33.
>
> It is configured for Linux kernel by:
> linux-2.6/fs/Kconfig.binfmt CORE_DUMP_DEFAULT_ELF_HEADERS
>
> One can simulate it if not pre-configured:
> echo 0x33 >/proc/self/coredump_filter
>

Good to know. Thanks. In that case, it will be picked up by normal
target_read_memory (second method).

---
Aleksandar