linux-hardening - Re: [PATCH] i3c: dw: Annotate struct dw_i3c_xfer with __counted

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

Message-ID: <66b317e630f6904cbddbb8affcf06b59b4c0ead8.camel@codeconstruct.com.au>
Date: Fri, 22 Sep 2023 11:48:11 -0700
From: Jeremy Kerr <jk@...econstruct.com.au>
To: Kees Cook <keescook@...omium.org>, Alexandre Belloni
	 <alexandre.belloni@...tlin.com>
Cc: Joel Stanley <joel@....id.au>, linux-i3c@...ts.infradead.org, Nathan
 Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>,
 Tom Rix <trix@...hat.com>,  Uwe Kleine-König
 <u.kleine-koenig@...gutronix.de>, Matt Johnston
 <matt@...econstruct.com.au>,  Krzysztof Kozlowski
 <krzysztof.kozlowski@...aro.org>, Jack Chen <zenghuchen@...gle.com>,
 linux-kernel@...r.kernel.org,  llvm@...ts.linux.dev,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH] i3c: dw: Annotate struct dw_i3c_xfer with __counted_by

Hi Kees,

> Prepare for the coming implementation by GCC and Clang of the
> __counted_by attribute. Flexible array members annotated with
> __counted_by can have their accesses bounds-checked at run-time
> checking via CONFIG_UBSAN_BOUNDS (for array indexing) and
> CONFIG_FORTIFY_SOURCE (for strcpy/memcpy- family functions).

Nice!

Reviewed-by: Jeremy Kerr <jk@...econstruct.com.au>

Cheers,


Jeremy