With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva.
Noroxi assessment
Priority: Monitor (action score 27/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.33% (FIRST EPSS).
- Physical access to the device is required. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: bpftool (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-477.10.1.el8_8.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to bpftool (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-477.10.1.el8_8 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
- Published
- Jun 2, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 24th percentile
- CWE
- CWE-476
Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 27 / 40 · 6.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux11.0
- fedoraproject fedora34
- fedoraproject fedora35
- fedoraproject fedora36
- linux linux kernelbefore 5.8
- redhat enterprise linux9.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
n/a kernel
- no patch information available yetaffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | bpftool | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-abi-stablelists | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-core | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-cross-headers | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-debug | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-debug-core | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-debug-devel | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-debug-modules | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-debug-modules-extra | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-devel | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-doc | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-modules | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-modules-extra | before 4.18.0-477.10.1.el8_8 | 4.18.0-477.10.1.el8_8 |
| AlmaLinux:8 | kernel-rt | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-core | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-debug | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-debug-core | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-debug-devel | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-debug-kvm | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-debug-modules | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-devel | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
| AlmaLinux:8 | kernel-rt-kvm | before 4.18.0-477.10.1.rt7.274.el8_8 | 4.18.0-477.10.1.rt7.274.el8_8 |
+96
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
Published before and after this one in the same product
- ← EarlierCVE-2022-1652Jun 2, 2022 · Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_fl31Monitor
- ← EarlierCVE-2022-1786Jun 2, 2022 · A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more31Monitor
- Later →CVE-2022-1943Jun 2, 2022 · A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way user triggers some file operation w31Monitor
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 |
|---|---|---|
| almalinux:kernel-rt | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-core | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug-core | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug-devel | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug-kvm | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug-modules | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug-modules-core | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-debug-modules-extra | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-devel | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-kvm | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-rt-modules | 5.14.0-284.11.1.rt14.296.el9_2 · AlmaLinux:9 | Package registry (OSV) |
| debian:linux | 5.17.11-1 · Debian:12 | Package registry (OSV) |
| red hat:kernel-rt | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-core | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-core | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-debuginfo | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-devel | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-kvm | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules-core | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules-extra | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo-common-x86_64 | 0:5.14.0-284.11.1.rt14.296.el9_2 · Red Hat:enterprise_linux:9::nfv | 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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0544 · Aug 11, 2022(Ubuntu Güvenlik Güncellemesi)
Technical details
Attack conditions
- Physical access to the device is required.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Physical
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (6 more)Show less
- francozappa.github.io/about-bias/
- kb.cert.org/vuls/id/647177/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IBUOQTNTQ4ZCXHOCNKYIL2ZUIAZ675RD/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KCEAPIVPRTJHKPF2A2HVF5XHD5XJT3MN/
- www.debian.org/security/2022/dsa-5161
Vendor advisories and official records. Exploit/PoC links are deliberately left out.