From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io, ardb@kernel.org
Cc: Leif Lindholm <quic_llindhol@quicinc.com>,
Alexander Graf <agraf@csgraf.de>
Subject: Re: [edk2-devel] [PATCH v3 03/16] ArmVirtPkg: make EFI_LOADER_DATA non-executable
Date: Mon, 28 Nov 2022 16:46:10 +0100 [thread overview]
Message-ID: <20221128154610.wik3f65bhbfrdpva@sirius.home.kraxel.org> (raw)
In-Reply-To: <20220926082511.2110797-4-ardb@kernel.org>
On Mon, Sep 26, 2022 at 10:24:58AM +0200, Ard Biesheuvel wrote:
> When the memory protections were implemented and enabled on ArmVirtQemu
> 5+ years ago, we had to work around the fact that GRUB at the time
> expected EFI_LOADER_DATA to be executable, as that is the memory type it
> allocates when loading its modules.
>
> This has been fixed in GRUB in August 2017, so by now, we should be able
> to tighten this, and remove execute permissions from EFI_LOADER_DATA
> allocations.
Data point: https://bugzilla.redhat.com/show_bug.cgi?id=2149020
tl;dr: fedora 37 grub.efi is still broken.
take care,
Gerd
next prev parent reply other threads:[~2022-11-28 15:46 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 8:24 [PATCH v3 00/16] ArmVirtPkg/ArmVirtQemu: Performance streamlining Ard Biesheuvel
2022-09-26 8:24 ` [PATCH v3 01/16] ArmVirtPkg: remove EbcDxe from all platforms Ard Biesheuvel
2022-09-26 8:24 ` [PATCH v3 02/16] ArmVirtPkg: do not enable iSCSI driver by default Ard Biesheuvel
2022-09-26 8:24 ` [PATCH v3 03/16] ArmVirtPkg: make EFI_LOADER_DATA non-executable Ard Biesheuvel
2022-09-26 22:28 ` [edk2-devel] " Leif Lindholm
2022-11-28 15:46 ` Gerd Hoffmann [this message]
2022-12-29 18:00 ` dann frazier
2023-01-03 9:59 ` Ard Biesheuvel
2023-01-03 19:39 ` Alexander Graf
2023-01-03 22:47 ` dann frazier
2023-01-04 9:35 ` Ard Biesheuvel
2023-01-04 11:11 ` Gerd Hoffmann
2023-01-04 12:04 ` Ard Biesheuvel
2023-01-04 12:56 ` Gerd Hoffmann
2023-01-06 9:55 ` Laszlo Ersek
2023-01-06 10:06 ` Laszlo Ersek
2023-01-04 13:13 ` Alexander Graf
2023-01-05 0:09 ` Alexander Graf
2023-01-05 8:11 ` Gerd Hoffmann
2023-01-05 8:43 ` Alexander Graf
2023-01-05 9:41 ` Ard Biesheuvel
2023-01-05 11:19 ` Gerd Hoffmann
2023-01-05 11:44 ` Ard Biesheuvel
2023-01-05 15:12 ` Gerd Hoffmann
2023-01-05 19:58 ` Gerd Hoffmann
2023-01-06 2:19 ` Sean
2023-01-06 8:44 ` Gerd Hoffmann
2023-01-05 23:37 ` Alexander Graf
2022-09-26 8:24 ` [PATCH v3 04/16] ArmVirtPkg/ArmVirtQemu: wire up timeout PCD to Timeout variable Ard Biesheuvel
2022-09-26 8:25 ` [PATCH v3 05/16] ArmPkg/ArmMmuLib: don't replace table entries with block entries Ard Biesheuvel
2022-09-26 22:32 ` Leif Lindholm
2022-09-26 8:25 ` [PATCH v3 06/16] ArmPkg/ArmMmuLib: Disable and re-enable MMU only when needed Ard Biesheuvel
2022-09-26 23:28 ` Leif Lindholm
2022-09-26 8:25 ` [PATCH v3 07/16] ArmPkg/ArmMmuLib: permit initial configuration with MMU enabled Ard Biesheuvel
2022-09-26 22:35 ` Leif Lindholm
2022-09-26 8:25 ` [PATCH v3 08/16] ArmPkg/ArmMmuLib: Reuse XIP MMU routines when splitting entries Ard Biesheuvel
2022-09-26 22:38 ` Leif Lindholm
2022-09-26 8:25 ` [PATCH v3 09/16] ArmPlatformPkg/PrePeiCore: permit entry with the MMU enabled Ard Biesheuvel
2022-09-26 22:39 ` [edk2-devel] " Leif Lindholm
2022-09-26 8:25 ` [PATCH v3 10/16] ArmVirtPkg/ArmVirtQemu: implement ArmPlatformLib with static ID map Ard Biesheuvel
2022-09-26 8:25 ` [PATCH v3 11/16] ArmVirtPkg/ArmVirtQemu: use first 128 MiB as permanent PEI memory Ard Biesheuvel
2022-09-26 8:25 ` [PATCH v3 12/16] ArmVirtPkg/ArmVirtQemu: enable initial ID map at early boot Ard Biesheuvel
2022-12-29 21:10 ` [edk2-devel] " dann frazier
2023-01-03 9:02 ` Ard Biesheuvel
2023-01-03 19:38 ` dann frazier
2022-09-26 8:25 ` [PATCH v3 13/16] ArmVirtPkg/ArmVirtQemu: Drop unused variable PEIM Ard Biesheuvel
2022-09-26 8:25 ` [PATCH v3 14/16] ArmVirtPkg/ArmVirtQemu: avoid shadowing PEIMs unless necessary Ard Biesheuvel
2022-09-26 8:25 ` [PATCH v3 15/16] ArmVirtPkg/QemuVirtMemInfoLib: use HOB not PCD to record the memory size Ard Biesheuvel
2022-09-26 8:25 ` [PATCH v3 16/16] ArmVirtPkg/ArmVirtQemu: omit PCD PEIM unless TPM support is enabled Ard Biesheuvel
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