linux-kernel - [PATCH v2 0/3] x86: fix brk area initialization

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]

Message-Id: <20220623094608.7294-1-jgross@suse.com>
Date:   Thu, 23 Jun 2022 11:46:05 +0200
From:   Juergen Gross <jgross@...e.com>
To:     xen-devel@...ts.xenproject.org, x86@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     Juergen Gross <jgross@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: [PATCH v2 0/3] x86: fix brk area initialization

The brk area needs to be zeroed initially, like the .bss section.
At the same time its memory should be covered by the ELF program
headers.

Juergen Gross (3):
  x86/xen: use clear_bss() for Xen PV guests
  x86: fix setup of brk area
  x86: fix .brk attribute in linker script

 arch/x86/include/asm/setup.h  |  3 +++
 arch/x86/kernel/head64.c      |  4 +++-
 arch/x86/kernel/vmlinux.lds.S |  2 +-
 arch/x86/xen/enlighten_pv.c   |  8 ++++++--
 arch/x86/xen/xen-head.S       | 10 +---------
 5 files changed, 14 insertions(+), 13 deletions(-)

-- 
2.35.3