On 7/22/20 10:51 AM, Joe Lawrence wrote:
On 7/22/20 10:39 AM, Kees Cook wrote:
On Wed, Jul 22, 2020 at 11:27:30AM +0200, Miroslav Benes wrote:
Let me CC live-patching ML, because from a quick glance this is something
which could impact live patching code. At least it invalidates assumptions
which "sympos" is based on.
In a quick skim, it looks like the symbol resolution is using
kallsyms_on_each_symbol(), so I think this is safe? What's a good
selftest for live-patching?
Hi Kees,
I don't think any of the in-tree tests currently exercise the
kallsyms/sympos end of livepatching.
On second thought, I mispoke.. The general livepatch code does use it:
klp_init_object
klp_init_object_loaded
klp_find_object_symbol
in which case any of the current kselftests should exercise that.
% make -C tools/testing/selftests/livepatch run_tests
-- Joe
