** Description changed: - The bug is that if a system admin provides a disk (which supports the - discard aka TRIM or SCSI UNMAP) to a guest as read-only - there are no - checks done. Which means that the OS can destroy the data. + The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c + in the Xen blkback implementation in the Linux kernel before 3.10.5 + allows guest OS users to cause a denial of service (data loss) via + filesystem write operations on a read-only disk that supports the (1) + BLKIF_OP_DISCARD (aka discard or TRIM) or (2) SCSI UNMAP feature. Break-Fix: b3cb0d6adc4bbc70b5e37e49a6068e973545ead7 604c499cbbcc3d5fe5fb8d53306aa0fae1990109
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1188351 Title: CVE-2013-2140 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188351/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
