Re: [PATCH] nilfs2: avoid overflowing segment numbers innilfs_ioctl_clean_segments()

[Andrew Morton]

On Sat, 04 Feb 2012 12:13:02 +0900 (JST) Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx> wrote:

> On Fri,  3 Feb 2012 10:26:07 -0500, Xi Wang wrote:
> > nsegs is read from userspace.  Limit its value and avoid overflowing
> > nsegs * sizeof(__u64) in the subsequent call to memdup_user().
> > 
> > This patch complements 481fe17e973fb97aa3edf17c69557afe88d8334f.
> > 
> > Signed-off-by: Xi Wang <xi.wang@xxxxxxxxx>
> > Cc: Haogang Chen <haogangchen@xxxxxxxxx>
> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> > ---
> >  fs/nilfs2/ioctl.c |    2 ++
> >  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> Acked-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
> 
> 
> Thank you for posting this fix.
> 
> Andrew, could you send this uptream in this cycle ?

I sure can.
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