CVE-2024-38616Network attack vector

Kernel memory overwrite via mismatched union clearing

Published Jun 19, 2024 · Updated May 11, 2026

Out-of-bounds write in the Linux kernel's carl9170 driver allows remote attackers to corrupt kernel memory via wireless traffic. The carl9170_tx_release() function clears pad and rate_driver_data separately because memset_after() used the status union view while the original pointer came from rate_driver_data, producing a fortified write-beyond-field condition. Reachability requires an active carl9170 wireless device and an affected kernel; the published assessment limits impact to memory integrity and service availability.

CVSS severity8.2
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in the Linux kernel's carl9170 driver allows remote attackers to corrupt kernel memory via wireless traffic. The carl9170_tx_release() function clears pad and rate_driver_data separately because memset_after() used the status union view while the original pointer came from rate_driver_data, producing a fortified write-beyond-field condition. Reachability requires an active carl9170 wireless device and an affected kernel; the published assessment limits impact to memory integrity and service availability.

The record

CVE
CVE-2024-38616
Published
Jun 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

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=5.17
  2. Affected versionversion=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <042a39bb8e0812466327a5102606e88a5a4f8c02
  3. Affected versionversion=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <066afafc10c9476ee36c47c9062527a17e763901
  4. Affected versionversion=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <0c38c9c460bb8ce8d6f6cf316e0d71a70983ec83
  5. Affected versionversion=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <13857683126e8a6492af73c74d702835f7a2175b
  6. Affected versionversion=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <87586467098281f04fa93e59fe3a516b954bddc4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <042a39bb8e0812466327a5102606e88a5a4f8c02; version=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <066afafc10c9476ee36c47c9062527a17e763901; version=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <0c38c9c460bb8ce8d6f6cf316e0d71a70983ec83; version=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <13857683126e8a6492af73c74d702835f7a2175b; version=fb5f6a0e8063b7a84d6d44ef353846ccd7708d2e <87586467098281f04fa93e59fe3a516b954bddc4
The Linux Kernel Organization · Linux Kernelversion=5.17; version=fb5f6a0e8063 <042a39bb8e08; version=fb5f6a0e8063 <066afafc10c9; version=fb5f6a0e8063 <0c38c9c460bb; version=fb5f6a0e8063 <13857683126e; version=fb5f6a0e8063 <875864670982

Published CVSS scores

8.2Canonical UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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