CVE-2006-0744

Linux kernel before 2.6.16.5 does not properly handle uncanonical return addresses on Intel EM64T CPUs, which reports an exception in the SYSRET instead of the next instruction, which causes the kernel exception handler to run on the user stack with the wrong GS.

• CWE-20

• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.5
• http://lwn.net/Alerts/180820/
• http://secunia.com/advisories/19639Vendor Advisory
• http://secunia.com/advisories/19735Vendor Advisory
• http://secunia.com/advisories/20157Vendor Advisory
• http://secunia.com/advisories/20237Vendor Advisory
• http://secunia.com/advisories/20398
• http://secunia.com/advisories/20716Vendor Advisory
• http://secunia.com/advisories/20914Vendor Advisory
• http://secunia.com/advisories/21136Vendor Advisory
• http://secunia.com/advisories/21179Vendor Advisory
• http://secunia.com/advisories/21498Vendor Advisory
• http://secunia.com/advisories/21745Vendor Advisory
• http://secunia.com/advisories/21983Vendor Advisory
• http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
• http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
• http://www.debian.org/security/2006/dsa-1103
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:086
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:150
• http://www.novell.com/linux/security/advisories/2006-05-31.html
• http://www.novell.com/linux/security/advisories/2006_42_kernel.html
• http://www.novell.com/linux/security/advisories/2006_47_kernel.html
• http://www.osvdb.org/24639
• http://www.redhat.com/support/errata/RHSA-2006-0437.html
• http://www.redhat.com/support/errata/RHSA-2006-0493.html
• http://www.securityfocus.com/bid/17541
• http://www.ubuntu.com/usn/usn-302-1
• http://www.vupen.com/english/advisories/2006/1390
• http://www.vupen.com/english/advisories/2006/1475
• http://www.vupen.com/english/advisories/2006/2554
• https://exchange.xforce.ibmcloud.com/vulnerabilities/25869
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9732
• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.5
• http://lwn.net/Alerts/180820/
• http://secunia.com/advisories/19639Vendor Advisory
• http://secunia.com/advisories/19735Vendor Advisory
• http://secunia.com/advisories/20157Vendor Advisory
• http://secunia.com/advisories/20237Vendor Advisory
• http://secunia.com/advisories/20398
• http://secunia.com/advisories/20716Vendor Advisory
• http://secunia.com/advisories/20914Vendor Advisory
• http://secunia.com/advisories/21136Vendor Advisory
• http://secunia.com/advisories/21179Vendor Advisory
• http://secunia.com/advisories/21498Vendor Advisory
• http://secunia.com/advisories/21745Vendor Advisory
• http://secunia.com/advisories/21983Vendor Advisory
• http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
• http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
• http://www.debian.org/security/2006/dsa-1103
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:086
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:150
• http://www.novell.com/linux/security/advisories/2006-05-31.html
• http://www.novell.com/linux/security/advisories/2006_42_kernel.html
• http://www.novell.com/linux/security/advisories/2006_47_kernel.html
• http://www.osvdb.org/24639
• http://www.redhat.com/support/errata/RHSA-2006-0437.html
• http://www.redhat.com/support/errata/RHSA-2006-0493.html
• http://www.securityfocus.com/bid/17541
• http://www.ubuntu.com/usn/usn-302-1
• http://www.vupen.com/english/advisories/2006/1390
• http://www.vupen.com/english/advisories/2006/1475
• http://www.vupen.com/english/advisories/2006/2554
• https://exchange.xforce.ibmcloud.com/vulnerabilities/25869
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9732

Published

Apr 18, 2006

Last Modified

Jun 16, 2026

Status

Modified

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