--- title: "CVE-2014-0038\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-2014-0038?format=md keywords: index, follow --- # CVE-2014-0038 Publication date 30 January 2014 Last updated 4 July 2026 --- Ubuntu priority **Critical** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The compat\_sys\_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG\_X86\_X32 is enabled, allows local users to gain privileges via a recvmmsg system call with a crafted timeout pointer parameter. ### From the Ubuntu Security Team Pageexec reported a bug in the Linux kernel's recvmmsg syscall when called from code using the x32 ABI. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or gain administrator privileges. [Read the notes from the security team](https://ubuntu.com/security/CVE-2014-0038?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 13.10 saucy | Fixed 3.11.0-15.25 | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not affected | | linux-armadaxp | 13.10 saucy | Not in release | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not in release | | linux-ec2 | 13.10 saucy | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not affected | | linux-fsl-imx51 | 13.10 saucy | 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-goldfish | 13.10 saucy | Not affected | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-grouper | 13.10 saucy | Not affected | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-linaro-omap | 13.10 saucy | 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 | 13.10 saucy | 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 | 13.10 saucy | 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-quantal | 13.10 saucy | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not in release | | linux-lts-raring | 13.10 saucy | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Fixed 3.8.0-35.52~precise1 | | 10.04 LTS lucid | Not in release | | linux-lts-saucy | 13.10 saucy | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Fixed 3.11.0-15.25~precise1 | | 10.04 LTS lucid | Not in release | | linux-maguro | 13.10 saucy | Not affected | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-mako | 13.10 saucy | Not affected | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-manta | 13.10 saucy | Not affected | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-mvl-dove | 13.10 saucy | 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 | 13.10 saucy | 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-ti-omap4 | 13.10 saucy | Not affected | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 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-2014-0038?format=md#patch-details) ## Notes --- ### [jj](https://launchpad.net/~jj) x32 abi enabled kernels only: CONFIG\_X86\_X32 && ld can build x32 ### 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 [ee4fa23](https://git.kernel.org/linus/ee4fa23c4bfcc635d077a9633d405610de45bc70), fixed by [2def2ef](https://git.kernel.org/linus/2def2ef2ae5f3990aabdbe8a755911902707d268) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0038) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-0038) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-0038) * [Debian](https://security-tracker.debian.org/tracker/CVE-2014-0038) ### Related Ubuntu Security Notices (USN) + [USN-2095-1](https://usn.ubuntu.com/USN-2095-1) + Linux kernel (Saucy HWE) vulnerability + 31 January 2014 + [USN-2096-1](https://usn.ubuntu.com/USN-2096-1) + Linux kernel vulnerability + 31 January 2014 + [USN-2094-1](https://usn.ubuntu.com/USN-2094-1) + Linux kernel (Raring HWE) vulnerability + 31 January 2014 ### Other references *