integ/grub/grub-efi/debian/patches/secure-core/0012-efi-chainloader-take-c...

42 lines
1.2 KiB
Diff

From c2b23e972b657cdb5e0794c93d342f167fffb3e3 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Date: Fri, 27 Mar 2015 08:31:27 -0700
Subject: [PATCH 7/7] efi: chainloader: take care of unload undershim
Upstream-Status: Inappropriate [embedded specific]
Under shim, we use a custom buffer to put the relocated image, make
sure we free that memory when unloading.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
---
grub-core/loader/efi/chainloader.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
index baa85be..7b733a7 100644
--- a/grub-core/loader/efi/chainloader.c
+++ b/grub-core/loader/efi/chainloader.c
@@ -590,7 +590,17 @@ grub_chainloader_unload (void *context)
grub_free (loaded_image->load_options);
b = grub_efi_system_table->boot_services;
- efi_call_1 (b->unload_image, image_handle);
+ if (!shim_used)
+ {
+ efi_call_1 (b->unload_image, image_handle);
+ }
+ else
+ {
+ if (shim_buffer)
+ {
+ efi_call_2 (b->free_pages, shim_buffer, shim_pages);
+ }
+ }
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
--
2.25.1