linux-kernel - [PATCH 0/5] Improve kernel section protections

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri,  9 Oct 2020 14:13:39 -0700
From:   Atish Patra <atish.patra@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Atish Patra <atish.patra@....com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Anup Patel <anup@...infault.org>,
        Ard Biesheuvel <ardb@...nel.org>, Borislav Petkov <bp@...e.de>,
        Greentime Hu <greentime.hu@...ive.com>,
        Guo Ren <guoren@...ux.alibaba.com>,
        Kees Cook <keescook@...omium.org>,
        linux-riscv@...ts.infradead.org,
        Michel Lespinasse <walken@...gle.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Zong Li <zong.li@...ive.com>
Subject: [PATCH 0/5] Improve kernel section protections

This series aims at improving kernel permissions by doing following things.

1. Protect kernel sections early instead of after /init.
2. Protect .init.text & .init.data sections with appropriate permissions.
3. Move dynamic relocation section to _init.

This series is based on Guo's static object fixes[1].

[1]https://patchwork.kernel.org/project/linux-riscv/list/?series=360951

Atish Patra (5):
RISC-V: Move __start_kernel to .head.text
RISC-V: Initialize SBI early
RISC-V: Enforce protections for kernel sections early
RISC-V: Protect .init.text & .init.data
RISC-V: Move dynamic relocation section under __init

arch/riscv/include/asm/sections.h   |  2 ++
arch/riscv/include/asm/set_memory.h |  4 ++++
arch/riscv/kernel/head.S            |  1 -
arch/riscv/kernel/setup.c           | 13 +++++++++----
arch/riscv/kernel/vmlinux.lds.S     | 18 +++++++++++++-----
arch/riscv/mm/init.c                | 17 +++++++++++++++--
arch/riscv/mm/pageattr.c            |  6 ++++++
7 files changed, 49 insertions(+), 12 deletions(-)

--
2.25.1