Roger Pau Monné 1877914910 xen-blkback: read from indirect descriptors only once ... Since indirect descriptors are in memory shared with the frontend, the frontend could alter the first_sect and last_sect values after they have been validated but before they are recorded in the request. This may result in I/O requests that overflow the foreign page, possibly overwriting local pages when the I/O request is executed. When parsing indirect descriptors, only read first_sect and last_sect once. This is part of XSA155. CC: stable@vger.kernel.org Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>		2015-12-18 10:00:37 -05:00
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Makefile	xen/blkback: Squash vbd.c,interface.c in blkback.c and xenbus.c respectivly.	2011-04-20 11:57:59 -04:00
blkback.c	xen-blkback: read from indirect descriptors only once	2015-12-18 10:00:37 -05:00
common.h	xen-blkback: only read request operation from shared ring once	2015-12-18 10:00:32 -05:00
xenbus.c	xen/xenbus: Rename *RING_PAGE* to *RING_GRANT*	2015-10-23 14:20:46 +01:00