A race condition in the x86 KVM subsystem in the Linux kernel through 6.1-rc6 allows…
Priority LOW 24CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
A race condition in the x86 KVM subsystem in the Linux kernel through 6.1-rc6 allows guest OS users to cause a denial of service (host OS crash or host OS memory corruption) when nested virtualisation and the TDP MMU are enabled.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00258 17th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 6 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 6.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | 6.1 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | 6.1 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* | 6.1 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* | 6.1 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* | 6.1 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* | 6.1 rc6 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* Versions 6.1 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* Versions 6.1 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* Versions 6.1 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* Versions 6.1 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* Versions 6.1 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* Versions 6.1 rc6 Vulnerable ·Linux
Remediation
Red Hat 6 advisories
- RHSA-2024:1404 Released 2024-03-19 · Red Hat rating Importantkernel security and bug fix update
- Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.51.1.el8_8
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.51.1.el8_8, kernel-4.18.0-477.51.1.el8_8, kernel-abi-stablelists-4.18.0-477.51.1.el8_8 +19
- RHSA-2024:1188 Released 2024-03-06 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.95.1.el8_6
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.95.1.el8_6, kernel-4.18.0-372.95.1.el8_6, kernel-abi-stablelists-4.18.0-372.95.1.el8_6 +19
- Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.95.1.el8_6, perf-4.18.0-372.95.1.el8_6
- RHSA-2023:7077 Released 2023-11-14 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-513.5.1.el8_9
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-513.5.1.el8_9, kernel-4.18.0-513.5.1.el8_9, kernel-abi-stablelists-4.18.0-513.5.1.el8_9 +19
Show 3 more Red Hat advisories
- RHSA-2023:6901 Released 2023-11-14 · Red Hat rating Importantkernel-rt security, bug fix, and enhancement update
- Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-4.18.0-513.5.1.rt7.307.el8_9 +7
- Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-4.18.0-513.5.1.rt7.307.el8_9 +9
- RHSA-2023:4377 Released 2023-08-01 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.25.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.25.1.el9_2, kernel-64k-devel-5.14.0-284.25.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.25.1.el9_2, kernel-5.14.0-284.25.1.el9_2, kernel-64k-5.14.0-284.25.1.el9_2 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.25.1.el9_2
- RHSA-2023:4378 Released 2023-08-01 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-284.25.1.rt14.310.el9_2, kernel-rt-core-5.14.0-284.25.1.rt14.310.el9_2, kernel-rt-debug-5.14.0-284.25.1.rt14.310.el9_2 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-284.25.1.rt14.310.el9_2, kernel-rt-core-5.14.0-284.25.1.rt14.310.el9_2, kernel-rt-debug-5.14.0-284.25.1.rt14.310.el9_2 +9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2023:7077 |
| Red Hat CodeReady Linux Builder EUS (v.8.6) | Fixed | RHSA-2024:1188 |
| Red Hat CodeReady Linux Builder EUS (v.8.8) | Fixed | RHSA-2024:1404 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:4377 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2023:7077 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:4377 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.6) | Fixed | RHSA-2024:1188 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2024:1404 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2023:4377 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2023:4378 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2023:4378 |
| Red Hat Enterprise Linux Real Time (v. 8) | Fixed | RHSA-2023:6901 |
| Red Hat Enterprise Linux Real Time for NFV (v. 8) | Fixed | RHSA-2023:6901 |
| Red Hat Virtualization 4 Hypervisor for RHEL 8 | Fixed | RHSA-2024:1188 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux AppStream (v. 9)
Timeline
- 2026-10-02 Threatist record created from CVE-2022-45869
- 2026-10-03 Alias added: GHSA-p786-v75j-m944
References
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2022-45869 · CVE Program
- CVE-2022-45869 · NVD
- FIRST EPSS
- GHSA-p786-v75j-m944 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-45869 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences