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Re: Linux 2.6.22.18
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From: Greg KH
Subject:
Re: Linux 2.6.22.18
Date: Monday, February 11, 2008 - 8:45 am
On Mon, Feb 11, 2008 at 11:31:25AM +0000, Matthew Keenan wrote:
quoted text
> > On Sun, 2008-02-10 at 23:43 -0800, Greg Kroah-Hartman wrote: > > diff --git a/Makefile b/Makefile > > index 6a949eb..99c5e87 100644 > > --- a/Makefile > > +++ b/Makefile > > @@ -1,7 +1,7 @@ > > VERSION = 2 > > PATCHLEVEL = 6 > > SUBLEVEL = 22 > > -EXTRAVERSION = .17 > > +EXTRAVERSION = .18 > > NAME = Holy Dancing Manatees, Batman! > > > > # *DOCUMENTATION* > > diff --git a/fs/splice.c b/fs/splice.c > > index e263d3b..dbbe267 100644 > > --- a/fs/splice.c > > +++ b/fs/splice.c > > @@ -1182,6 +1182,9 @@ static int get_iovec_page_array(const struct iovec __user *iov, > > if (unlikely(!base)) > > break; > > > > + if (!access_ok(VERIFY_READ, base, len)) > > + break; > > + > > /* > > * Get this base offset and number of pages, then map > > * in the user pages. > > Maybe I'm missing something here, but is there are reason that the patch > for 2.6.22 differs from 2.6.2[34]? The "if(unlikely(!base))" is removed > in the latter.
the logic is a little different in 2.6.22 and earlier in regards to this area of code. This way we are safer. thanks, greg k-h --
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Messages in current thread:
Linux 2.6.22.18
, Greg Kroah-Hartman
, (Mon Feb 11, 12:43 am)
Re: Linux 2.6.22.18
, Greg Kroah-Hartman
, (Mon Feb 11, 12:43 am)
Re: Linux 2.6.22.18
, Matthew Keenan
, (Mon Feb 11, 4:31 am)
Re: Linux 2.6.22.18
, Greg KH
, (Mon Feb 11, 8:45 am)
Re: Linux 2.6.22.18
, Linus Torvalds
, (Mon Feb 11, 9:32 am)
Re: Linux 2.6.22.18
, Florian Weimer
, (Tue Feb 12, 10:48 am)
Re: Linux 2.6.22.18
, Greg KH
, (Tue Feb 12, 10:50 am)
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