drivers/platform/x86/thinkpad_acpi.c in the Linux kernel before 2.6.34 on ThinkPad devices,...

Vulnerability Description

drivers/platform/x86/thinkpad_acpi.c in the Linux kernel before 2.6.34 on ThinkPad devices, when the X.Org X server is used, does not properly restrict access to the video output control state, which allows local users to cause a denial of service (system hang) via a (1) read or (2) write operation.

References

• http://openwall.com/lists/oss-security/2010/09/28/1
• http://openwall.com/lists/oss-security/2010/09/29/7
• https://bugzilla.redhat.com/show_bug.cgi?id=652122
• http://openwall.com/lists/oss-security/2010/09/30/1
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=565790
• http://openwall.com/lists/oss-security/2010/06/23/2
• https://exchange.xforce.ibmcloud.com/vulnerabilities/64580
• http://openwall.com/lists/oss-security/2010/09/30/6
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b525c06cdbd8a3963f0173ccd23f9147d4c384b5
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
• http://www.debian.org/security/2010/dsa-2126