linux-kernel - [PATCH -tip v2 0/2] kprobes/x86: RO text code bugfix and cleanup

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:   Sat, 12 Aug 2017 09:43:43 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Ingo Molnar <mingo@...hat.com>, "H . Peter Anvin" <hpa@...or.com>,
        x86@...nel.org, Masami Hiramatsu <mhiramat@...nel.org>,
        Ananth N Mavinakayanahalli <ananth@...ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org
Subject: [PATCH -tip v2 0/2] kprobes/x86: RO text code bugfix and cleanup

Hi,

This series fixes a kprobe-x86 bug related to RO text and
cleans up addressof operators.

The first one is an obvious bug that misses to set memory
RO when the function fails. And the second one is just a
cleanup patch to remove addressof operators ("&") since
it is meaningless anymore.

V2 has just a following update:
 - [1/2] Use a helper variable instead of using p->ainsn.insn
   directly.

Thanks,

---

Masami Hiramatsu (2):
      kprobes/x86: Don't forget to set memory back to RO on failure
      kprobes/x86: Remove addressof operators


 arch/x86/include/asm/kprobes.h |    4 ++--
 arch/x86/kernel/kprobes/core.c |   15 +++++++++------
 arch/x86/kernel/kprobes/opt.c  |    9 +++++----
 3 files changed, 16 insertions(+), 12 deletions(-)

--
Masami Hiramatsu <mhiramat@...nel.org>