d108ec594a
- Introduces a new package, grub2-x86_64-efi-bls, which includes a straightforward grubbls.efi file. This file can be copied to the EFI System Partition (ESP) along with boot fragments in the Boot Loader Specification (BLS) format * 0001-Streamline-BLS-and-improve-PCR-stability.patch - Fix crash in bli module (bsc#1226497) * 0001-bli-Fix-crash-in-get_part_uuid.patch - Rework package dependencies: grub2-common now includes common userland utilities and is required by grub2 platform packages. grub2 is now a meta package that pulls in the default platform package. OBS-URL: https://build.opensuse.org/request/show/1196023 OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=512
53 lines
1.6 KiB
Diff
53 lines
1.6 KiB
Diff
From 1fc593b372bfe9bba82f4c59236d5a0cffebd8e2 Mon Sep 17 00:00:00 2001
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From: Colin Watson <cjwatson@debian.org>
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Date: Fri, 24 Jul 2020 17:18:09 +0100
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Subject: [PATCH 10/11] efilinux: Fix integer overflows in grub_cmd_initrd
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These could be triggered by an extremely large number of arguments to
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the initrd command on 32-bit architectures, or a crafted filesystem with
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very large files on any architecture.
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Signed-off-by: Colin Watson <cjwatson@debian.org>
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---
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grub-core/loader/i386/efi/linux.c | 10 ++++++++--
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1 file changed, 8 insertions(+), 2 deletions(-)
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diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
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index 652212227..6b06a8f2f 100644
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--- a/grub-core/loader/i386/efi/linux.c
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+++ b/grub-core/loader/i386/efi/linux.c
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@@ -28,6 +28,8 @@
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#include <grub/efi/efi.h>
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#include <grub/efi/linux.h>
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#include <grub/cpu/efi/memory.h>
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+#include <grub/tpm.h>
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+#include <grub/safemath.h>
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GRUB_MOD_LICENSE ("GPLv3+");
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@@ -206,7 +208,7 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
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goto fail;
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}
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- files = grub_zalloc (argc * sizeof (files[0]));
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+ files = grub_calloc (argc, sizeof (files[0]));
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if (!files)
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goto fail;
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@@ -217,7 +219,11 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
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if (! files[i])
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goto fail;
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nfiles++;
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- size += ALIGN_UP (grub_file_size (files[i]), 4);
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+ if (grub_add (size, ALIGN_UP (grub_file_size (files[i]), 4), &size))
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+ {
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+ grub_error (GRUB_ERR_OUT_OF_RANGE, N_("overflow is detected"));
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+ goto fail;
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+ }
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}
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initrd_mem = kernel_alloc(size, N_("can't allocate initrd"));
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--
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2.31.1
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