CVE-2022-3545

Kernel memory corruption via premature cache identifier assignment

Published Oct 17, 2022 · Updated Apr 15, 2025

Use-after-free in the Linux kernel NFP driver before 6.0 allows local users to corrupt kernel memory through failed area setup. area_cache_get assigns cache->id before area_init or area acquisition succeeds, so a failure leaves a zero-refcount area eligible for release and later reuse. Reachability requires the Netronome Flow Processor driver and local low-privileged access; public sources identify no reliable trigger or demonstrated code execution.

CVSS severity7.8
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel NFP driver before 6.0 allows local users to corrupt kernel memory through failed area setup. area_cache_get assigns cache->id before area_init or area acquisition succeeds, so a failure leaves a zero-refcount area eligible for release and later reuse. Reachability requires the Netronome Flow Processor driver and local low-privileged access; public sources identify no reliable trigger or demonstrated code execution.

The record

CVE
CVE-2022-3545
Published
Oct 17, 2022
Updated
Apr 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-119, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=n/a

Published CVSS scores

5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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