Re: [patch] cifs: writing past the end of the array

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On Sun, 06 Mar 2011 18:11:23 +0100
walter harms <wharms@xxxxxx> wrote:

> 
> 
> Am 06.03.2011 14:26, schrieb Dan Carpenter:
> > This is a cut and paste error.  p16 only has 16 chars, not 21.
> > 
> > Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
> > 
> > diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
> > index 3967635..1525d5e 100644
> > --- a/fs/cifs/smbencrypt.c
> > +++ b/fs/cifs/smbencrypt.c
> > @@ -353,7 +353,7 @@ SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24)
> >  	int rc;
> >  	unsigned char p16[16], p21[21];
> >  
> > -	memset(p16, '\0', 21);
> > +	memset(p16, '\0', 16);
> >  	memset(p21, '\0', 21);
> >  
> >  	rc = E_md4hash(passwd, p16);
> 
> 
> perhaps ARRAY_SIZE() instead of a magic number is a better choice ?
> 

Agreed. Care to propose a patch? There are almost certainly other
places in the code that could use a similar cleanup.

-- 
Jeff Layton <jlayton@xxxxxxxxxx>
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