linux-kernel - Re: [PATCH 2/2] tpm: replace dynamically allocated bios

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] [day] [month] [year] [list]

Message-ID: <20161001192207.GA31992@intel.com>
Date:   Sat, 1 Oct 2016 22:22:07 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:     Peter Huewe <peterhuewe@....de>,
        Nayna Jain <nayna@...ux.vnet.ibm.com>,
        Marcel Selhorst <tpmdd@...horst.net>,
        "moderated list:TPM DEVICE DRIVER" 
        <tpmdd-devel@...ts.sourceforge.net>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] tpm: replace dynamically allocated bios_dir with a
 static array

On Sat, Oct 01, 2016 at 10:49:32AM -0600, Jason Gunthorpe wrote:
> On Sat, Oct 01, 2016 at 03:41:17PM +0300, Jarkko Sakkinen wrote:
> > -	bin_file =
> > +	chip->bios_dir[cnt] =
> >  	    securityfs_create_file("binary_bios_measurements",
> > -				   S_IRUSR | S_IRGRP, tpm_dir,
> > +				   S_IRUSR | S_IRGRP, chip->bios_dir[cnt],
> 
> That is certainly not right, Nayna's version was correct, the function
> argument is the directory to create under and bios_dir[0] is setup as the
> directory for tpm. This is also why removal is done in reverse order,
> files are removed then the directory that contains them.

Right. I overlooked this.

> Jason

/Jarkko