1 files changed, 130 insertions, 0 deletions

diff --git a/meta/recipes-bsp/grub/files/CVE-2020-14372_1.patch b/meta/recipes-bsp/grub/files/CVE-2020-14372_1.patch
new file mode 100644
index 0000000000..745f335501
--- /dev/null
+++ b/meta/recipes-bsp/grub/files/CVE-2020-14372_1.patch
@@ -0,0 +1,130 @@
+From fe7a13df6200bda934fcc0246458df249f1ef4f2 Mon Sep 17 00:00:00 2001
+From: Marco A Benatto <mbenatto@redhat.com>
+Date: Wed, 23 Sep 2020 11:33:33 -0400
+Subject: [PATCH] verifiers: Move verifiers API to kernel image
+
+Move verifiers API from a module to the kernel image, so it can be
+used there as well. There are no functional changes in this patch.
+
+Signed-off-by: Marco A Benatto <mbenatto@redhat.com>
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+
+Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=9e95f45ceeef36fcf93cbfffcf004276883dbc99]
+CVE: CVE-2020-14372
+Signed-off-by: Marta Rybczynska <marta.rybczynska@huawei.com>
+---
+ grub-core/Makefile.am                    | 1 +
+ grub-core/Makefile.core.def              | 6 +-----
+ grub-core/kern/main.c                    | 4 ++++
+ grub-core/{commands => kern}/verifiers.c | 8 ++------
+ include/grub/verify.h                    | 9 ++++++---
+ 5 files changed, 14 insertions(+), 14 deletions(-)
+ rename grub-core/{commands => kern}/verifiers.c (97%)
+
+diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am
+index 3ea8e7f..375c30d 100644
+--- a/grub-core/Makefile.am
++++ b/grub-core/Makefile.am
+@@ -90,6 +90,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/parser.h
+ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/partition.h
+ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/term.h
+ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/time.h
++KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/verify.h
+ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/mm_private.h
+ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/net.h
+ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/memory.h
+diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
+index 474a63e..cff02f2 100644
+--- a/grub-core/Makefile.core.def
++++ b/grub-core/Makefile.core.def
+@@ -140,6 +140,7 @@ kernel = {
+   common = kern/rescue_parser.c;
+   common = kern/rescue_reader.c;
+   common = kern/term.c;
++  common = kern/verifiers.c;
+ 
+   noemu = kern/compiler-rt.c;
+   noemu = kern/mm.c;
+@@ -942,11 +943,6 @@ module = {
+   cppflags = '-I$(srcdir)/lib/posix_wrap';
+ };
+ 
+-module = {
+-  name = verifiers;
+-  common = commands/verifiers.c;
+-};
+-
+ module = {
+   name = shim_lock;
+   common = commands/efi/shim_lock.c;
+diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
+index 9cad0c4..73967e2 100644
+--- a/grub-core/kern/main.c
++++ b/grub-core/kern/main.c
+@@ -29,6 +29,7 @@
+ #include <grub/command.h>
+ #include <grub/reader.h>
+ #include <grub/parser.h>
++#include <grub/verify.h>
+ 
+ #ifdef GRUB_MACHINE_PCBIOS
+ #include <grub/machine/memory.h>
+@@ -274,6 +275,9 @@ grub_main (void)
+   grub_printf ("Welcome to GRUB!\n\n");
+   grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+ 
++  /* Init verifiers API. */
++  grub_verifiers_init ();
++
+   grub_load_config ();
+ 
+   grub_boot_time ("Before loading embedded modules.");
+diff --git a/grub-core/commands/verifiers.c b/grub-core/kern/verifiers.c
+similarity index 97%
+rename from grub-core/commands/verifiers.c
+rename to grub-core/kern/verifiers.c
+index 0dde481..aa3dc7c 100644
+--- a/grub-core/commands/verifiers.c
++++ b/grub-core/kern/verifiers.c
+@@ -217,12 +217,8 @@ grub_verify_string (char *str, enum grub_verify_string_type type)
+   return GRUB_ERR_NONE;
+ }
+ 
+-GRUB_MOD_INIT(verifiers)
++void
++grub_verifiers_init (void)
+ {
+   grub_file_filter_register (GRUB_FILE_FILTER_VERIFY, grub_verifiers_open);
+ }
+-
+-GRUB_MOD_FINI(verifiers)
+-{
+-  grub_file_filter_unregister (GRUB_FILE_FILTER_VERIFY);
+-}
+diff --git a/include/grub/verify.h b/include/grub/verify.h
+index ea04914..cd129c3 100644
+--- a/include/grub/verify.h
++++ b/include/grub/verify.h
+@@ -64,7 +64,10 @@ struct grub_file_verifier
+   grub_err_t (*verify_string) (char *str, enum grub_verify_string_type type);
+ };
+ 
+-extern struct grub_file_verifier *grub_file_verifiers;
++extern struct grub_file_verifier *EXPORT_VAR (grub_file_verifiers);
++
++extern void
++grub_verifiers_init (void);
+ 
+ static inline void
+ grub_verifier_register (struct grub_file_verifier *ver)
+@@ -78,7 +81,7 @@ grub_verifier_unregister (struct grub_file_verifier *ver)
+   grub_list_remove (GRUB_AS_LIST (ver));
+ }
+ 
+-grub_err_t
+-grub_verify_string (char *str, enum grub_verify_string_type type);
++extern grub_err_t
++EXPORT_FUNC (grub_verify_string) (char *str, enum grub_verify_string_type type);
+ 
+ #endif /* ! GRUB_VERIFY_HEADER */