Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching

Pull livepatching fix from Jiri Kosina:
 "A fix for module handling in case kASLR has been enabled, from Zhou
  Chengming"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: x86: fix relocation computation with kASLR

1 files changed, 6 insertions, 0 deletions

diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index 6e5344112419..db545cbcdb89 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -294,6 +294,12 @@ static int klp_write_object_relocations(struct module *pmod,
 
         for (reloc = obj->relocs; reloc->name; reloc++) {
                 if (!klp_is_module(obj)) {
+
+#if defined(CONFIG_RANDOMIZE_BASE)
+                        /* If KASLR has been enabled, adjust old value accordingly */
+                        if (kaslr_enabled())
+                                reloc->val += kaslr_offset();
+#endif
                         ret = klp_verify_vmlinux_symbol(reloc->name,
                                                         reloc->val);
                         if (ret)