The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause
The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.
- Published
- Jan 22, 2013
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 27th percentile
- CWE
- —
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Report tools
Action score
7
Monitor
Low priority for now.
- CVSS
- 7 / 40 · 1.9 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernelup to 3.6.8 inclusive
- linux linux kernel3.6
- linux linux kernel3.6.1
- linux linux kernel3.6.2
- linux linux kernel3.6.3
- linux linux kernel3.6.4
- linux linux kernel3.6.5
- linux linux kernel3.6.6
- linux linux kernel3.6.7
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 3.2.35-1 | 3.2.35-1 |
| Debian:6.0 | linux-2.6 | before 2.6.32-48squeeze3 | 2.6.32-48squeeze3 |
| Red Hat:enterprise_linux:6::client | kernel | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug-debuginfo | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug-devel | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo-common-i686 | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo-common-x86_64 | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-devel | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-doc | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-firmware | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-headers | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | perf | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | perf-debuginfo | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | python-perf | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::client | python-perf-debuginfo | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::server | kernel-bootwrapper | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::server | kernel-debuginfo-common-ppc64 | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::server | kernel-debuginfo-common-s390x | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump-debuginfo | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump-devel | before 0:2.6.32-279.22.1.el6 | 0:2.6.32-279.22.1.el6 |
| Red Hat:rhel_eus:6.2::server | kernel | before 0:2.6.32-220.38.1.el6 | 0:2.6.32-220.38.1.el6 |
+20
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:linux | 3.2.35-1 · Debian:12 | Package registry (OSV) |
| debian:linux-2.6 | 2.6.32-48squeeze3 · Debian:6.0 | Package registry (OSV) |
| red hat:kernel | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-debug | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common-i686 | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common-x86_64 | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-devel | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-doc | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-firmware | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:kernel-headers | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:perf | 0:2.6.32-279.22.1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:L/AC:M/Au:N/C:N/I:N/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- article.gmane.org/gmane.comp.emulators.kvm.devel/100742
- git.kernel.org/?p=linux/kernel/git/torvalds/linux.git%3Ba=commit%3Bh=6d1068b3a98519247d8ba4ec85cd40ac136dbdf9
- lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- rhn.redhat.com/errata/RHSA-2013-0223.html
- rhn.redhat.com/errata/RHSA-2013-0882.html
- secunia.com/advisories/51160
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.9
- www.openwall.com/lists/oss-security/2012/11/06/14
- www.securityfocus.com/bid/56414
- bugzilla.redhat.com/show_bug.cgi?id=862900
- www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.