linux-kernel - Re: [PATCH] fs: cifs: cifsencrypt.c: Cleaning up missing null-terminate in conjunction with strncpy

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Date:	Sat, 02 Aug 2014 10:33:27 -0700
From:	Joe Perches <joe@...ches.com>
To:	Shirish Pargaonkar <shirishpargaonkar@...il.com>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Steve French <sfrench@...ba.org>,
	linux-cifs <linux-cifs@...r.kernel.org>,
	samba-technical <samba-technical@...ts.samba.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fs: cifs: cifsencrypt.c: Cleaning up missing
 null-terminate in conjunction with strncpy

On Sat, 2014-08-02 at 11:55 -0500, Shirish Pargaonkar wrote:
> Acked-by: Shirish Pargaonkar <spargaonkar@...e.com>
[]
> > diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
[]
> > @@ -307,7 +307,7 @@ int calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
> >
> >         memset(password_with_pad, 0, CIFS_ENCPWD_SIZE);
> >         if (password)
> > -               strncpy(password_with_pad, password, CIFS_ENCPWD_SIZE);
> > +               strncpy(password_with_pad, password, CIFS_ENCPWD_SIZE - 1);


Is this always correct?


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