import shim-unsigned-aarch64-15-4.el8
This commit is contained in:
CentOS Sources
Stepan Oksanichenko
parent
b917fe7e5f
commit
e3020f16e4
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From 741c61abba7d5c74166f8d0c1b9ee8001ebcd186 Mon Sep 17 00:00:00 2001
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From: Patrick Uiterwijk <patrick@puiterwijk.org>
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Date: Thu, 6 Dec 2018 10:08:45 +0100
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Subject: [PATCH] Make EFI variable copying fatal only on secureboot enabled
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systems
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I have come across systems that are unwilling to reserve enough memory for
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a MokListRT big enough for big certificates.
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This seems to be the case with firmware implementations that do not support
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secureboot, which is probably the reason they went with much lower variable
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storage.
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This patch set makes sure we can still boot on those systems, by only
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making the copy action fatal if the system has secure boot enabled, or if
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the error was anything other than EFI_INVALID_PARAMETER.
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Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
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---
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shim.c | 12 +++++++++++-
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1 file changed, 11 insertions(+), 1 deletion(-)
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diff --git a/shim.c b/shim.c
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index 7d25ad6fe70..aee4727fe67 100644
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--- a/shim.c
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+++ b/shim.c
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@@ -2639,7 +2639,17 @@ efi_main (EFI_HANDLE passed_image_handle, EFI_SYSTEM_TABLE *passed_systab)
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* boot-services-only state variables are what we think they are.
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*/
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efi_status = import_mok_state(image_handle);
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- if (EFI_ERROR(efi_status)) {
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+ if (!secure_mode() && efi_status == EFI_INVALID_PARAMETER) {
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+ /*
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+ * Make copy failures fatal only if secure_mode is enabled, or
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+ * the error was anything else than EFI_INVALID_PARAMETER.
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+ * There are non-secureboot firmware implementations that don't
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+ * reserve enough EFI variable memory to fit the variable.
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+ */
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+ console_print(L"Importing MOK states has failed: %s: %r\n",
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+ msgs[msg], efi_status);
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+ console_print(L"Continuing boot since secure mode is disabled");
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+ } else if (EFI_ERROR(efi_status)) {
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die:
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console_print(L"Something has gone seriously wrong: %s: %r\n",
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msgs[msg], efi_status);
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--
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2.21.0
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@ -0,0 +1,28 @@
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From dad59f8c0f3620f68379a29c3e6badd22681ddc5 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Tue, 10 Apr 2018 12:36:34 -0400
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Subject: [PATCH] Make some things dprint() instead of console_print()
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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shim.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/shim.c b/shim.c
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index 00155346c12..ff0817009cd 100644
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--- a/shim.c
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+++ b/shim.c
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@@ -2087,8 +2087,8 @@ static int is_our_path(EFI_LOADED_IMAGE *li, CHAR16 *path, UINTN len)
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if (!dppath)
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return 0;
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- console_print(L"dppath: %s\n", dppath);
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- console_print(L"path: %s\n", path);
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+ dprint(L"dppath: %s\n", dppath);
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+ dprint(L"path: %s\n", path);
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if (StrnCaseCmp(dppath, path, len))
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ret = 0;
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--
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2.21.0
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@ -0,0 +1,51 @@
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From a625fa5096ccdf87036379a5cb237bd43516d605 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Fri, 7 Sep 2018 14:11:02 +0200
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Subject: [PATCH] shim: Properly generate absolute paths from relative
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image paths
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The generate_path_from_image_path() doesn't properly handle the case when
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shim is invoked using a relative path (e.g: from the EFI shell). In that
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function, always the last component is stripped from absolute file path
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to calculate the dirname, and this is concatenated with the image path.
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But if the path is a relative one, the function will wrongly concatenate
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the dirname with the relative image path, i.e:
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Shell> FS0:
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FS0:\> cd EFI
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FS0:\EFI\> BOOT\BOOTX64.EFI
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Failed to open \EFI\BOOT\BOOT\BOOTX64.EFI - Not found
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Failed to load image \EFI\BOOT\BOOT\BOOTX64.EFI: Not found
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start_image() returned Not found
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Calculate the image path basename and concatenate that with the dirname.
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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Reviewed-by: Maran Wilson maran.wilson@oracle.com
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Tested-by: Maran Wilson maran.wilson@oracle.com
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---
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shim.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/shim.c b/shim.c
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index f29f39214f5..32d2772b279 100644
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--- a/shim.c
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+++ b/shim.c
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@@ -1640,9 +1640,11 @@ static EFI_STATUS generate_path_from_image_path(EFI_LOADED_IMAGE *li,
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bootpath[j] = '\0';
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}
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- while (*ImagePath == '\\')
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- ImagePath++;
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+ for (i = 0, last = 0; i < StrLen(ImagePath); i++)
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+ if (ImagePath[i] == '\\')
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+ last = i + 1;
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+ ImagePath = ImagePath + last;
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*PathName = AllocatePool(StrSize(bootpath) + StrSize(ImagePath));
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if (!*PathName) {
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--
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2.21.0
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@ -0,0 +1,75 @@
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From e563bc3dcd17d91861d3b363ed19d30228f409e1 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Fri, 7 Sep 2018 15:10:51 +0200
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Subject: [PATCH] shim: Prevent shim to set itself as a second stage loader
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When shim is invoked from a relative path (e.g: from the UEFI shell), the
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Loaded Image handle LoadOptions can be set to the binary relative path.
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But the is_our_path() function only checks if LoadOptions is set to the
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absolute path of shim to ignore it. So if a relative path is there, shim
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would set itself as the secondary loader and invoke itself in a loop.
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To prevent that, use the path in LoadOptions to calculate the absolute
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path and compare it with the one in the Loader Image handle FilePath.
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Resolves: bz#1622485
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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Reviewed-by: Maran Wilson maran.wilson@oracle.com
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Tested-by: Maran Wilson maran.wilson@oracle.com
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---
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shim.c | 17 ++++++++++++++---
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1 file changed, 14 insertions(+), 3 deletions(-)
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diff --git a/shim.c b/shim.c
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index 32d2772b279..8abc0c267cf 100644
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--- a/shim.c
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+++ b/shim.c
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@@ -2116,21 +2116,32 @@ get_load_option_optional_data(UINT8 *data, UINTN data_size,
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return EFI_SUCCESS;
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}
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-static int is_our_path(EFI_LOADED_IMAGE *li, CHAR16 *path, UINTN len)
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+static int is_our_path(EFI_LOADED_IMAGE *li, CHAR16 *path)
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{
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CHAR16 *dppath = NULL;
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+ CHAR16 *PathName = NULL;
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+ EFI_STATUS efi_status;
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int ret = 1;
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dppath = DevicePathToStr(li->FilePath);
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if (!dppath)
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return 0;
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+ efi_status = generate_path_from_image_path(li, path, &PathName);
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+ if (EFI_ERROR(efi_status)) {
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+ perror(L"Unable to generate path %s: %r\n", path,
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+ efi_status);
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+ goto done;
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+ }
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+
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dprint(L"dppath: %s\n", dppath);
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dprint(L"path: %s\n", path);
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- if (StrnCaseCmp(dppath, path, len))
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+ if (StrnCaseCmp(dppath, PathName, strlen(dppath)))
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ret = 0;
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+done:
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FreePool(dppath);
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+ FreePool(PathName);
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return ret;
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}
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@@ -2319,7 +2330,7 @@ EFI_STATUS set_second_stage (EFI_HANDLE image_handle)
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* which is just cruel... So yeah, just don't use it.
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*/
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- if (strings == 1 && is_our_path(li, start, loader_len))
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+ if (strings == 1 && is_our_path(li, start))
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return EFI_SUCCESS;
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/*
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--
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2.21.0
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@ -16,7 +16,7 @@
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Name: shim-unsigned-aarch64
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Version: 15
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Release: 2%{?dist}
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Release: 4%{?dist}
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Summary: First-stage UEFI bootloader
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ExclusiveArch: aarch64
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License: BSD
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@ -33,6 +33,10 @@ Patch0001: 0001-Make-sure-that-MOK-variables-always-get-mirrored.patch
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Patch0002: 0002-mok-fix-the-mirroring-of-RT-variables.patch
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Patch0003: 0003-mok-consolidate-mirroring-code-in-a-helper-instead-o.patch
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Patch0004: 0004-Make-VLogError-behave-as-expected.patch
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Patch0005: 0005-Make-EFI-variable-copying-fatal-only-on-secureboot-e.patch
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Patch0006: 0006-Make-some-things-dprint-instead-of-console_print.patch
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Patch0007: 0007-shim-Properly-generate-absolute-paths-from-relative-.patch
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Patch0008: 0008-shim-Prevent-shim-to-set-itself-as-a-second-stage-lo.patch
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BuildRequires: elfutils-libelf-devel
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BuildRequires: git openssl-devel openssl
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@ -131,6 +135,16 @@ cd ..
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%files debugsource -f build-%{efiarch}/debugsource.list
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%changelog
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* Fri Jun 07 2019 Javier Martinez Canillas <javierm@redhat.com> 15-4
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- Add a gating.yaml file so the package can be properly gated
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Related: rhbz#1682749
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* Wed Jun 05 2019 Javier Martinez Canillas <javierm@redhat.com> - 15-3
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- Make EFI variable copying fatal only on secureboot enabled systems
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Resolves: rhbz#1704854
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- Fix booting shim from an EFI shell using a relative path
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Resolves: rhbz#1717063
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* Tue Feb 12 2019 Peter Jones <pjones@redhat.com> - 15-2
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- Fix MoK mirroring issue which breaks kdump without intervention
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Related: rhbz#1668966
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