Re: [PATCH v2 1/3] tools: hv: fcopy_daemon: Check buffer limits

2014-11-07 Thread Greg KH
On Tue, Oct 21, 2014 at 04:46:58PM +0200, Matej Mužila wrote: > From: Matej Mužila > > Check if cpmsg->size is in limits of DATA_FRAGMENT > > Signed-off-by: Matej Mužila > --- > > If corrupted data are read from /dev/vmbus/hv_fcopy, pwrite can > read from memory outside of the buffer (defined

[PATCH v2 1/3] tools: hv: fcopy_daemon: Check buffer limits

2014-10-21 Thread Matej Mužila
From: Matej Mužila Check if cpmsg->size is in limits of DATA_FRAGMENT Signed-off-by: Matej Mužila --- If corrupted data are read from /dev/vmbus/hv_fcopy, pwrite can read from memory outside of the buffer (defined at line 138). Added check. Changes made since v1: * max value of cmesg