CVE-2023-53379

Service interruption via probe-path memory leak

Published Sep 18, 2025 · Updated Sep 18, 2025

A memory leak in affected Linux kernel releases allows local users to interrupt service during a failed Tahvo USB PHY probe. The tahvo_usb_probe function obtains an IRQ, then returns on a later error without releasing its allocated state because the failure path lacks cleanup. Reachability requires local low-privilege access and a configured Tahvo USB PHY that reaches the post-IRQ error path; the documented impact is availability loss only.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A memory leak in affected Linux kernel releases allows local users to interrupt service during a failed Tahvo USB PHY probe. The tahvo_usb_probe function obtains an IRQ, then returns on a later error without releasing its allocated state because the failure path lacks cleanup. Reachability requires local low-privilege access and a configured Tahvo USB PHY that reaches the post-IRQ error path; the documented impact is availability loss only.

The record

CVE
CVE-2023-53379
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0d45a1373e669880b8beaecc8765f44cb0241e47 <342161c11403ea00e9febc16baab1d883d589d04
  2. Affected versionversion=0d45a1373e669880b8beaecc8765f44cb0241e47 <38dbd6f72bfbeba009efe0e9ec1f3ff09f9e23fa
  3. Affected versionversion=0d45a1373e669880b8beaecc8765f44cb0241e47 <dd9b7c89a80428cc5f4ae0d2e1311fdedb2a1aac
  4. Affected versionversion=0d45a1373e669880b8beaecc8765f44cb0241e47 <ecf26d6e1b5450620c214feea537bb6ce05c6741
  5. Affected versionversion=3f06415418f37ac602e71a61ee83ea43553e6bbd <3e5a7bebf832b1482efe27bcc15a88c5b28a30d0
  6. Affected versionversion=494629ba62a961de1f2dd0b7125878acb27b8043 <56901de563359de20513e16a9ae008ae2c22e9a9
  7. Affected versionversion=4eab21911d5d6a3377b8965b9fb06463b248fe6b
  8. Affected versionversion=5.15
  9. Affected versionversion=5e2d2f05204f7ab9c645a1fb9f10a3f6393dd2fa <4da9edeccf77d7b4c6dbcb34d5908acdaa5bd7e3
  10. Affected versionversion=606668e24a0d7fd262e2326d76bb60b965fe713f <fe9cdc19861950582f077f254a12026e169eaee5
  11. Affected versionversion=62e663c172115b9e26a0856508db6277871a7c32
  12. Affected versionversion=b45f0d0105a0f50e681dc8fac4b32e1192de34f2
  13. Affected versionversion=dcf379ea4e93b8ea23d628db68ae953b26d63af1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0d45a1373e669880b8beaecc8765f44cb0241e47 <342161c11403ea00e9febc16baab1d883d589d04; version=0d45a1373e669880b8beaecc8765f44cb0241e47 <38dbd6f72bfbeba009efe0e9ec1f3ff09f9e23fa; version=0d45a1373e669880b8beaecc8765f44cb0241e47 <dd9b7c89a80428cc5f4ae0d2e1311fdedb2a1aac; version=0d45a1373e669880b8beaecc8765f44cb0241e47 <ecf26d6e1b5450620c214feea537bb6ce05c6741; version=3f06415418f37ac602e71a61ee83ea43553e6bbd <3e5a7bebf832b1482efe27bcc15a88c5b28a30d0; version=494629ba62a961de1f2dd0b7125878acb27b8043 <56901de563359de20513e16a9ae008ae2c22e9a9; version=4eab21911d5d6a3377b8965b9fb06463b248fe6b; version=5.15; version=5e2d2f05204f7ab9c645a1fb9f10a3f6393dd2fa <4da9edeccf77d7b4c6dbcb34d5908acdaa5bd7e3; version=606668e24a0d7fd262e2326d76bb60b965fe713f <fe9cdc19861950582f077f254a12026e169eaee5; version=62e663c172115b9e26a0856508db6277871a7c32; version=b45f0d0105a0f50e681dc8fac4b32e1192de34f2; version=dcf379ea4e93b8ea23d628db68ae953b26d63af1

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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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-401Missing Release of Memory after Effective Lifetime

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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