Re: [PATCH v2] xfs: check for possible overflow in xfs_ioc_trim

2012-08-08 Thread Lukáš Czerner
On Wed, 1 Aug 2012, Tomas Racek wrote: > Date: Wed, 1 Aug 2012 15:45:37 +0200 > From: Tomas Racek > To: linux-...@vger.kernel.org > Cc: lczer...@redhat.com, Tomas Racek , > Ben Myers , Alex Elder , > "supporter:XFS FILESYSTEM" , > open list >

[PATCH v2] xfs: check for possible overflow in xfs_ioc_trim

2012-08-01 Thread Tomas Racek
If range.start points behind the filesystem, return invalid value error. This fixes possible overflow in start = BTOBB(range.start) when range.start is nearly ULLONG_MAX. Signed-off-by: Tomas Racek --- fs/xfs/xfs_discard.c |5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --