CVE-2022-48804· NVD / CVE Program· CNA Linux

vt_ioctl: fix array_index_nospec in vt_setactivate

Noroxi assessment

Priority: Monitor (action score 22/100)

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: 0.30% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 170325aba4608bde3e7d21c9c19b7bc266ac0885, 2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0, 3.17.

Low priority for now. Upgrade to Linux Linux 170325aba4608bde3e7d21c9c19b7bc266ac0885, 2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0, 3.17 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

In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec. Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.

MediumCVSS 5.5 · v3.1—No exploit Fix available

Published: Jul 16, 2024
Updated: Jun 17, 2026
EPSS: 0.3% · 22th percentile
CWE: CWE-191

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 22 / 40 · 5.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

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.

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Affected 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

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernelbefore 4.9.302
linux linux kernel4.10 and later · before 4.14.267
linux linux kernel4.15 and later · before 4.19.320
linux linux kernel4.20 and later · before 5.4.180
linux linux kernel5.5 and later · before 5.10.101
linux linux kernel5.11 and later · before 5.15.24
linux linux kernel5.16 and later · before 5.16.10
linux linux kernel5.17

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 458697ab18b512445ac273ce68a9f8fd623fc0a3, 1aa698b65186c13ed775896ed1dfec7c26c73d60, 52ef74c21c277e50de771fc722d814a830b3036b, 4.19affected
- 0ec459ec174031fad02a55e622cf2fc0d2e75a25 and later · before 830c5aa302ec16b4ee641aec769462c37f802c90affected · git
- 4334a6ae867aa12f01c1755368fd0de4c926ac75 and later · before 2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0affected · git
- e97267cb4d1ee01ca0929638ec0fcbb0904f903d and later · before 170325aba4608bde3e7d21c9c19b7bc266ac0885affected · git
- e97267cb4d1ee01ca0929638ec0fcbb0904f903d and later · before ae3d57411562260ee3f4fd5e875f410002341104affected · git
- e97267cb4d1ee01ca0929638ec0fcbb0904f903d and later · before 778302ca09498b448620edd372dc908bebf80bdfaffected · git
- e97267cb4d1ee01ca0929638ec0fcbb0904f903d and later · before ffe54289b02e9c732d6f04c8ebbe3b2d90d32118affected · git
- e97267cb4d1ee01ca0929638ec0fcbb0904f903d and later · before 6550bdf52846f85a2a3726a5aa0c7c4399f2fc02affected · git
- e97267cb4d1ee01ca0929638ec0fcbb0904f903d and later · before 61cc70d9e8ef5b042d4ed87994d20100ec8896d9affected · git
- 4.9.130 and later · before 4.9.302affected · semver

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 5.16.10-1	5.16.10-1
Red Hat:enterprise_linux:9::appstream	bpftool-debuginfo	before 0:7.4.0-503.11.1.el9_5	0:7.4.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-64k-debug-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-64k-debug-devel	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-64k-debug-devel-matched	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-64k-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-64k-devel	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-64k-devel-matched	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debug-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debug-devel	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debug-devel-matched	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debuginfo-common-aarch64	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debuginfo-common-ppc64le	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debuginfo-common-s390x	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-debuginfo-common-x86_64	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-devel	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-devel-matched	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-doc	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-headers	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-rt-debug-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-rt-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-tools-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5
Red Hat:enterprise_linux:9::appstream	kernel-zfcpdump-debuginfo	before 0:5.14.0-503.11.1.el9_5	0:5.14.0-503.11.1.el9_5

+96

Same product

linux: all records

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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
Linux Linux	170325aba4608bde3e7d21c9c19b7bc266ac0885	Vendor (CNA)
Linux Linux	2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0	Vendor (CNA)
Linux Linux	3.17	Vendor (CNA)
Linux Linux	4.14.267	Vendor (CNA)
Linux Linux	4.19	Vendor (CNA)
Linux Linux	4.5	Vendor (CNA)
Linux Linux	4.9.302	Vendor (CNA)
Linux Linux	61cc70d9e8ef5b042d4ed87994d20100ec8896d9	Vendor (CNA)
Linux Linux	6550bdf52846f85a2a3726a5aa0c7c4399f2fc02	Vendor (CNA)
Linux Linux	778302ca09498b448620edd372dc908bebf80bdf	Vendor (CNA)
Linux Linux	830c5aa302ec16b4ee641aec769462c37f802c90	Vendor (CNA)
Linux Linux	ae3d57411562260ee3f4fd5e875f410002341104	Vendor (CNA)
Linux Linux	ffe54289b02e9c732d6f04c8ebbe3b2d90d32118	Vendor (CNA)
debian:linux	5.16.10-1 · Debian:12	Package registry (OSV)
red hat:bpftool-debuginfo	0:7.3.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-64k-debug-debuginfo	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-64k-debug-devel	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-64k-debug-devel-matched	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-64k-debuginfo	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-64k-devel	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-64k-devel-matched	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-debug-debuginfo	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-debug-devel	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-debug-devel-matched	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-debuginfo	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	Package registry (OSV)
red hat:kernel-debuginfo-common-aarch64	0:5.14.0-427.47.1.el9_4 · Red Hat:rhel_eus:9.4::appstream	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.

EPSS, last 120 days

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 researchers

Finders, 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.

CVE-2024-2682890 days apartcifs: fix underflow in parse_server_interfaces()
37Monitor
CVE-2024-4675964 days aparthwmon: (adc128d818) Fix underflows seen when writing limit attributes
31Monitor
CVE-2024-2691390 days apartdrm/amd/display: Fix dcn35 8k30 Underflow/Corruption Issue
31Monitor
CVE-2024-53061126 days apartmedia: s5p-jpeg: prevent buffer overflows
31Monitor
CVE-2024-0565183 days apartKernel: cifs filesystem decryption improper input validation remote code execution vulnerability in function receive_encrypted_standard of client
30Monitor
CVE-2022-49278225 days apartremoteproc: Fix count check in rproc_coredump_write()
28Monitor

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

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

Weakness class (CWE)

CWE-191 · Integer Underflow (Wrap or Wraparound)

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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✗ → ✓Sep 28, 2026, 10:11 PM UTC

For records you follow, these changes also arrive as notifications. →

References

git.kernel.org/stable/c/170325aba4608bde3e7d21c9c19b7bc266ac0885

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records