arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.31.4 on the x86_64 platform does not clear certain kernel registers before a…

Description

arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.31.4 on the x86_64 platform does not clear certain kernel registers before a return to user mode, which allows local users to read register values from an earlier process by switching an ia32 process to 64-bit mode.

Scores

EPSS (exploitation in 30 days)

0.41% · top 64% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.

Weakness

• n/a
• CWE-200 (opens in a new tab)All about CWE-200 and its CVEs

Affected products

• n/a

  • affected n/a

References (24)

• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4 (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2009:1671 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git%3Ba=commit%3Bh=24e35800cdc4350fc34e2bed37b608a9e13ab3b6 (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2009:1540 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• USN-864-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 36927 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:7359 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 37351 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 37075 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://support.avaya.com/css/P8/documents/100073666 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SA:2009:056 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SA:2010:012 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• [oss-security] 20091001 Re: CVE Request (kernel) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=526788 (opens in a new tab)x_refsource_CONFIRMx_transferred
• oval:org.mitre.oval:def:10823 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 36576 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• [oss-security] 20091002 Re: CVE Request (kernel) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [oss-security] 20091009 Re: CVE Request (kernel) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [oss-security] 20091001 CVE Request (kernel) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• FEDORA-2009-10525 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• RHSA-2010:0095 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2010:0046 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [linux-kernel] 20091001 [tip:x86/urgent] x86: Don't leak 64-bit kernel register values to 32-bit processes (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• SUSE-SA:2009:054 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2009-2910](https://trackcve.app/badge/CVE-2009-2910.svg)](https://trackcve.app/cve/CVE-2009-2910)

Record last updated 7 Aug 2024, 06:07 UTC.