--- title: "CVE-2011-1478\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-2011-1478?format=md keywords: index, follow --- # CVE-2011-1478 Publication date 25 July 2011 Last updated 4 July 2026 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The napi\_reuse\_skb function in net/core/dev.c in the Generic Receive Offload (GRO) implementation in the Linux kernel before 2.6.38 does not reset the values of certain structure members, which might allow remote attackers to cause a denial of service (NULL pointer dereference) via a malformed VLAN frame. ### From the Ubuntu Security Team Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.38-3.30 | | 10.10 maverick | Fixed 2.6.35-30.52 | | 10.04 LTS lucid | Fixed 2.6.32-32.62 | | 8.04 LTS hardy | Not affected | | linux-ec2 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Ignored end of life | | 10.04 LTS lucid | Fixed 2.6.32-316.30 | | 8.04 LTS hardy | Not in release | | linux-fsl-imx51 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.31-610.27 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-maverick | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.35-30.54~lucid1 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-natty | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.38-3.30~lucid1 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-oneiric | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not affected | | 8.04 LTS hardy | Not in release | | linux-mvl-dove | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Fixed 2.6.32-417.34 | | 10.04 LTS lucid | Fixed 2.6.32-217.34 | | 8.04 LTS hardy | Not in release | | linux-ti-omap4 | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.38-1201.2 | | 10.10 maverick | Fixed 2.6.35-903.23 | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | 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-2011-1478?format=md#patch-details) ### 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 [5d38a07](https://git.kernel.org/linus/5d38a079ce3971f932bbdc0dc5b887806fabd5dc), fixed by [6d152e2](https://git.kernel.org/linus/6d152e23ad1a7a5b40fef1f42e017d66e6115159) * Introduced by [5d38a07](https://git.kernel.org/linus/5d38a079ce3971f932bbdc0dc5b887806fabd5dc), fixed by [66c46d7](https://git.kernel.org/linus/66c46d741e2e60f0e8b625b80edb0ab820c46d7a) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1478) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-1478) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-1478) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-1478) ### Related Ubuntu Security Notices (USN) + [USN-1202-1](https://usn.ubuntu.com/USN-1202-1) + Linux kernel (OMAP4) vulnerabilities + 13 September 2011 + [USN-1160-1](https://usn.ubuntu.com/USN-1160-1) + Linux kernel vulnerabilities + 28 June 2011 + [USN-1141-1](https://usn.ubuntu.com/USN-1141-1) + Linux kernel vulnerabilities + 1 June 2011 + [USN-1162-1](https://usn.ubuntu.com/USN-1162-1) + Linux kernel vulnerabilities (Marvell Dove) + 29 June 2011 + [USN-1204-1](https://usn.ubuntu.com/USN-1204-1) + Linux kernel (i.MX51) vulnerabilities + 13 September 2011 + [USN-1256-1](https://usn.ubuntu.com/USN-1256-1) + Linux kernel (Natty backport) vulnerabilities + 9 November 2011 + [USN-1187-1](https://usn.ubuntu.com/USN-1187-1) + Linux kernel (Maverick backport) vulnerabilities + 9 August 2011 + [USN-1159-1](https://usn.ubuntu.com/USN-1159-1) + Linux kernel vulnerabilities (Marvell Dove) + 13 July 2011 ### Other references *