CVE-2024-38601

Tracing interruption via ring-buffer resize race

Published Jun 19, 2024 · Updated May 11, 2026

Race condition in affected Linux kernel versions allows local users to interrupt tracing during a concurrent ring-buffer resize. rb_get_reader_page() updates the two links of a doubly linked reader-page list separately, allowing rb_check_pages() to observe a transient inconsistency. Reaching the narrow timing window requires concurrent reader and resize operations; successful triggering emits a warning and stops further tracing.

CVSS severity4.7
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in affected Linux kernel versions allows local users to interrupt tracing during a concurrent ring-buffer resize. rb_get_reader_page() updates the two links of a doubly linked reader-page list separately, allowing rb_check_pages() to observe a transient inconsistency. Reaching the narrow timing window requires concurrent reader and resize operations; successful triggering emits a warning and stops further tracing.

The record

CVE
CVE-2024-38601
Published
Jun 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1562.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=3.5
  2. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <1e160196042cac946798ac192a0bc3398f1aa66b
  3. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <54c64967ba5f8658ae7da76005024ebd3d9d8f6e
  4. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <595363182f28786d641666a09e674b852c83b4bb
  5. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <5ef9e330406d3fb4f4b2c8bca2c6b8a93bae32d1
  6. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <79b52013429a42b8efdb0cda8bb0041386abab87
  7. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <af3274905b3143ea23142bbf77bd9b610c54e533
  8. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <b50932ea673b5a089a4bb570a8a868d95c72854e
  9. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <c2274b908db05529980ec056359fae916939fdaa
  10. Affected versionversion=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <c68b7a442ee61d04ca58b2b5cb5ea7cb8230f84a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.5; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <1e160196042cac946798ac192a0bc3398f1aa66b; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <54c64967ba5f8658ae7da76005024ebd3d9d8f6e; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <595363182f28786d641666a09e674b852c83b4bb; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <5ef9e330406d3fb4f4b2c8bca2c6b8a93bae32d1; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <79b52013429a42b8efdb0cda8bb0041386abab87; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <af3274905b3143ea23142bbf77bd9b610c54e533; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <b50932ea673b5a089a4bb570a8a868d95c72854e; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <c2274b908db05529980ec056359fae916939fdaa; version=659f451ff21315ebfeeb46b9adccee8ce1b52c25 <c68b7a442ee61d04ca58b2b5cb5ea7cb8230f84a

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.1Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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