Description
The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel before 2.6.32-rc8-next-20091125 tries to interpret instructions that contain too many bytes to be valid, which allows guest OS users to cause a denial of service (increased scheduling latency) on the host OS via unspecified manipulations related to SMP support.
References (10)
Core 10
Core References
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/11/25/1
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/37720
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html
Patch, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz
Third Party Advisory vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/11/25/3
Third Party Advisory vendor-advisory
x_refsource_fedora
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html
Patch x_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/37130
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=541160
Scores
EPSS
0.0311
EPSS Percentile
86.3%
Details
CWE
CWE-20
Status
published
Products (2)
linux/linux_kernel
2.6.32 (8 CPE variants)
linux/linux_kernel
< 2.6.32
Published
Nov 29, 2009
Tracked Since
Feb 18, 2026