linux-kernel - Re: [Cocci] [PATCH] coccinelle: tests: unsigned value cannot be lesser than zero

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: <alpine.DEB.2.10.1509151642200.2537@hadrien>
Date:	Tue, 15 Sep 2015 16:43:55 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
cc:	Andrzej Hajda <a.hajda@...sung.com>,
	kernel-janitors@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	linux-kernel@...r.kernel.org, Michal Marek <mmarek@...e.com>,
	Joe Perches <joe@...ches.com>, cocci@...teme.lip6.fr
Subject: Re: [Cocci] [PATCH] coccinelle: tests: unsigned value cannot be
 lesser than zero

On Tue, 15 Sep 2015, SF Markus Elfring wrote:

> > If you think about removing all u* typedefs
>
> I became interested in the use case to consider more type definitions
> besides the ones which should usually be handled for Linux source files.
>
>
> > it will result in omitting u* related comparisons,
> > unless you use --recursive-includes option.
>
> How do you think about to make this source code analysis parameter configurable?

What parameter are you referring to?  --recursive-includes is already a
parameter.

> >>> +{unsigned char, unsigned short int, unsigned int, unsigned long, unsigned long long, size_t, u8, u16, u32, u64} v;
>
> How does the data type "size_t" fit into the suggested SmPL approach?

size_t is also unsigned.

> Would you like to reuse your approach for checking of more software
> eventually?

He is proposing a semantic patch for inclusion in the Linux kernel source
code, so it is not really necessary to consider types other than those
used by the Linux kernel.  People can modify the semantic patch if they
want for other uses.

julia
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/