linux-kernel - [PATCH v1 0/2] nolibc updates for Linux 5.20

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, 20 May 2022 00:21:14 +0700
From:   Ammar Faizi <ammarfaizi2@...weeb.org>
To:     "Paul E. McKenney" <paulmck@...nel.org>, Willy Tarreau <w@....eu>
Cc:     Ammar Faizi <ammarfaizi2@...weeb.org>,
        Alviro Iskandar Setiawan <alviro.iskandar@...weeb.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        Facebook Kernel Team <kernel-team@...com>
Subject: [PATCH v1 0/2] nolibc updates for Linux 5.20


Hi Willy,
Hi Paul,

Not much to do this time. Only small nolibc updates here. There are two
patches in this series.

1. Address Willy's comment about overflow checking in the multiplication
   operation [1]. This patch supports overflow checking for older
   compiler versions. Currently, we use `__builtin_mul_overflow()` that
   doesn't exist in older compiler versions. Instead of using this
   built-in, use a simple division to check for overflow in the `calloc()`
   function.

2. The compiler can warn us about wrong `printf` arguments. This patch
   enables the warnings. Currently, only two functions use this attribute:
   `printf` and `fprintf`.

Hopefully, I can send more updates for 5.21+.

Thank you!

Link: https://lore.kernel.org/lkml/20220330024114.GA18892@1wt.eu [1]
Signed-off-by: Alviro Iskandar Setiawan <alviro.iskandar@...weeb.org>
Signed-off-by: Ammar Faizi <ammarfaizi2@...weeb.org>
---

Alviro Iskandar Setiawan (1):
  tools/nolibc/stdio: Add format attribute to enable printf warnings

Ammar Faizi (1):
  tools/nolibc/stdlib: Support overflow checking for older compiler versions

 tools/include/nolibc/stdio.h  | 4 ++--
 tools/include/nolibc/stdlib.h | 7 +++----
 2 files changed, 5 insertions(+), 6 deletions(-)


base-commit: 9a9e459ed0e76710f1258b6c1d4c0316b52b4b08
prerequisite-patch-id: e4a9acdc12961f2d4c6bb99e4790b8ffa9d15174
prerequisite-patch-id: 5a618e6a72c7d2beef4ba2c2cf01dadfbaf9a996
prerequisite-patch-id: 1bcffd448f6984eee80d86560af19672cd4ae716
prerequisite-patch-id: 3e31c80bd4dd532e30b4bba76e5d98647e21184b
prerequisite-patch-id: 34e531967a67791d5b3c3e071527de7235715906
prerequisite-patch-id: 14105c6ae9dcc068ddf12a7c1bf431066199b813
prerequisite-patch-id: 4299173943ea579f538da00488fb1a7b1a690a79
prerequisite-patch-id: dd85164f2ec9eb8cea64ab801abac614f9d0c8f5
prerequisite-patch-id: 2c1b940635d1564e26b9959eb57cf9fa6983cb2f
-- 
Ammar Faizi