--- title: "CVE-2013-2140\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2013-2140?format=md keywords: index, follow --- # CVE-2013-2140 Publication date 5 June 2013 Last updated 4 July 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description 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. ### From the Ubuntu Security Team A flaw was discovered in the Xen subsystem of the Linux kernel when it provides read-only access to a disk that supports TRIM or SCSI UNMAP to a guest OS. A privileged user in the guest OS could exploit this flaw to destroy data on the disk, even though the guest OS should not be able to write to the disk. [Read the notes from the security team](https://ubuntu.com/security/CVE-2013-2140?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 17.04 zesty | Not affected | | 16.10 yakkety | Not affected | | 16.04 LTS xenial | Not affected | | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not affected | | 13.10 saucy | Not affected | | 13.04 raring | Fixed 3.8.0-30.44 | | 12.10 quantal | Fixed 3.5.0-40.62 | | 12.04 LTS precise | Fixed 3.2.0-57.87 | | 10.04 LTS lucid | Not affected | | linux-armadaxp | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Fixed 3.5.0-1621.29 | | 12.04 LTS precise | Fixed 3.2.0-1628.40 | | 10.04 LTS lucid | Not in release | | linux-aws | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not affected | | 12.04 LTS precise | Not in release | | linux-ec2 | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not affected | | linux-flo | 17.04 zesty | Not in release | | 16.10 yakkety | Ignored end of life | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.10 utopic | Ignored end of life | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-fsl-imx51 | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Ignored end of life | | linux-gke | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-goldfish | 17.04 zesty | Not affected | | 16.10 yakkety | Not affected | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-grouper | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Ignored end of life | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-hwe | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-hwe-edge | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-linaro-omap | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Ignored end of life | | 10.04 LTS lucid | Not in release | | linux-linaro-shared | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Ignored end of life | | 10.04 LTS lucid | Not in release | | linux-linaro-vexpress | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Ignored end of life | | 10.04 LTS lucid | Not in release | | linux-lts-backport-maverick | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Ignored end of life | | linux-lts-quantal | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Fixed 3.5.0-40.62~precise1 | | 10.04 LTS lucid | Not in release | | linux-lts-raring | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Fixed 3.8.0-30.44~precise1 | | 10.04 LTS lucid | Not in release | | linux-lts-saucy | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not in release | | linux-lts-trusty | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not in release | | linux-lts-utopic | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-lts-vivid | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-lts-wily | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-lts-xenial | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not affected | | 12.04 LTS precise | Not in release | | linux-maguro | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-mako | 17.04 zesty | Not in release | | 16.10 yakkety | Ignored end of life | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.10 utopic | Ignored end of life | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-manta | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.10 utopic | Ignored end of life | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-mvl-dove | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Ignored end of life | | linux-qcm-msm | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Ignored end of life | | 10.04 LTS lucid | Ignored end of life | | linux-raspi2 | 17.04 zesty | Not affected | | 16.10 yakkety | Not affected | | 16.04 LTS xenial | Not affected | | 15.10 wily | Not affected | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-snapdragon | 17.04 zesty | Not affected | | 16.10 yakkety | Not affected | | 16.04 LTS xenial | Not affected | | 15.10 wily | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-ti-omap4 | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not affected | | 13.04 raring | Fixed 3.5.0-232.48 | | 12.10 quantal | Fixed 3.5.0-232.48 | | 12.04 LTS precise | Fixed 3.2.0-1441.60 | | 10.04 LTS lucid | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2013-2140?format=md#patch-details) ## Notes --- ### [seth-arnold](https://launchpad.net/~seth-arnold) diff is e79ab45..4119bcd, patch not yet in tree ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | linux | * Introduced by [b3cb0d6](https://git.kernel.org/linus/b3cb0d6adc4bbc70b5e37e49a6068e973545ead7), fixed by [604c499](https://git.kernel.org/linus/604c499cbbcc3d5fe5fb8d53306aa0fae1990109) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2140) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-2140) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-2140) * [Debian](https://security-tracker.debian.org/tracker/CVE-2013-2140) ### Related Ubuntu Security Notices (USN) + [USN-2038-1](https://usn.ubuntu.com/USN-2038-1) + Linux kernel vulnerabilities + 3 December 2013 + [USN-1943-1](https://usn.ubuntu.com/USN-1943-1) + Linux kernel (Raring HWE) vulnerabilities + 6 September 2013 + [USN-1947-1](https://usn.ubuntu.com/USN-1947-1) + Linux kernel (Quantal HWE) vulnerabilities + 7 September 2013 + [USN-1946-1](https://usn.ubuntu.com/USN-1946-1) + Linux kernel (OMAP4) vulnerabilities + 6 September 2013 + [USN-1938-1](https://usn.ubuntu.com/USN-1938-1) + Linux kernel vulnerabilities + 5 September 2013 + [USN-2039-1](https://usn.ubuntu.com/USN-2039-1) + Linux kernel (OMAP4) vulnerabilities + 3 December 2013 + [USN-1944-1](https://usn.ubuntu.com/USN-1944-1) + Linux kernel vulnerabilities + 6 September 2013 + [USN-1945-1](https://usn.ubuntu.com/USN-1945-1) + Linux kernel (OMAP4) vulnerabilities + 6 September 2013 ### Other references * *