linux-kernel - Re: [PATCH -mmotm] fs/sysfs/file.c d

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]

Date:	Sun, 17 Feb 2008 08:07:33 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Erez Zadok <ezk@...sunysb.edu>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, jblunck@...e.de,
	hch@...radead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -mmotm] fs/sysfs/file.c d_path fix

On Sat, Feb 16, 2008 at 02:12:05PM -0500, Erez Zadok wrote:
> diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
> index 02223e2..a57b024 100644
> --- a/fs/sysfs/file.c
> +++ b/fs/sysfs/file.c
> @@ -329,9 +329,11 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
>  	struct sysfs_ops *ops;
>  	int error = -EACCES;
>  	char *p;
> +	struct path sysfs_path;
>  
> -	p = d_path(file->f_dentry, sysfs_mount, last_sysfs_file,
> -		   sizeof(last_sysfs_file));
> +	sysfs_path.dentry = file->f_dentry;
> +	sysfs_path.mnt = sysfs_mount;
> +	p = d_path(&sysfs_path, last_sysfs_file, sizeof(last_sysfs_file));

A d_path(file->f_path, ..); should do it, but I'd really like to know
what sysfs crowd was smoking when adding a d_path in ->open.  Guys,
please explain what's going on here.

--
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/