linux-kernel - [PATCH 0/2] ANDROID: cfi:free old cfi shadow asynchronously

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: <20220630094646.91837-1-haibo.li@mediatek.com>
Date:   Thu, 30 Jun 2022 17:46:44 +0800
From:   Haibo Li <haibo.li@...iatek.com>
To:     Sami Tolvanen <samitolvanen@...gle.com>
CC:     <xiaoming.yu@...iatek.com>, Kees Cook <keescook@...omium.org>,
        "Nathan Chancellor" <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        "Christophe Leroy" <christophe.leroy@...roup.eu>,
        André Almeida <andrealmeid@...lia.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Juergen Gross <jgross@...e.com>,
        Haibo Li <haibo.li@...iatek.com>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Aaron Tomlin <atomlin@...hat.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        <linux-kernel@...r.kernel.org>, <llvm@...ts.linux.dev>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: [PATCH 0/2] ANDROID: cfi:free old cfi shadow asynchronously

Currenly, it uses synchronize_rcu() to wait old rcu reader to go away
in update_shadow.In embedded platform like ARM CA7X,
load_module blocks 40~50ms in update_shadow.
When there are more than one hundred kernel modules,
it blocks several seconds.

To accelerate load_module,change synchronize_rcu to call_rcu.

*** BLURB HERE ***

Haibo Li (2):
  ANDROID: cfi: enable sanitize for cfi.c
  ANDROID: cfi: free old cfi shadow asynchronously

 kernel/Makefile |  3 ---
 kernel/cfi.c    | 20 +++++++++++++++++---
 2 files changed, 17 insertions(+), 6 deletions(-)

-- 
2.25.1