linux-kernel - Re: [PATCH 2/5] net/sunrpc: use kstrtoul, etc

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: <20111108193817.GA3453@p183.telecom.by>
Date:	Tue, 8 Nov 2011 22:38:18 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Julia Lawall <julia@...u.dk>
Cc:	"J. Bruce Fields" <bfields@...ldses.org>,
	kernel-janitors@...r.kernel.org, Neil Brown <neilb@...e.de>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	"David S. Miller" <davem@...emloft.net>, linux-nfs@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] net/sunrpc: use kstrtoul, etc

On Sun, Nov 06, 2011 at 02:26:47PM +0100, Julia Lawall wrote:
> @@
> expression a,b;
> {int,long} *c;
> @@
> 
> -strict_strtoul
> +kstrtoul

No, no, no!

In every case see the type or real data and use appropriate function.
kstrtou8() for ports.
This program creates lots of bogus patches in this case.

> --- a/net/sunrpc/addr.c
> +++ b/net/sunrpc/addr.c
> @@ -322,7 +322,7 @@ size_t rpc_uaddr2sockaddr(const char *ua
>  	c = strrchr(buf, '.');
>  	if (unlikely(c == NULL))
>  		return 0;
> -	if (unlikely(strict_strtoul(c + 1, 10, &portlo) != 0))
> +	if (unlikely(kstrtoul(c + 1, 10, &portlo) != 0))
>  		return 0;
>  	if (unlikely(portlo > 255))
>  		return 0;
> @@ -331,7 +331,7 @@ size_t rpc_uaddr2sockaddr(const char *ua
>  	c = strrchr(buf, '.');
>  	if (unlikely(c == NULL))
>  		return 0;
> -	if (unlikely(strict_strtoul(c + 1, 10, &porthi) != 0))
> +	if (unlikely(kstrtoul(c + 1, 10, &porthi) != 0))
>  		return 0;
>  	if (unlikely(porthi > 255))
>  		return 0;
--
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/