CVE-2024-46674

Kernel memory corruption via premature device release

Published Sep 13, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux DWC3 ST USB driver from 3.18 allows local users to corrupt kernel memory by triggering a device-probe error. The undo_platform_dev_alloc branch drops the probed device's reference despite allocating no platform device, releasing resources before devm cleanup. Low-privileged local access and a probe failure on a system using the ST DWC3 driver are required; the stale references permit a kernel crash or memory corruption.

CVSS severity7.8
High
EPSS probability0.28%
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 DWC3 ST USB driver from 3.18 allows local users to corrupt kernel memory by triggering a device-probe error. The undo_platform_dev_alloc branch drops the probed device's reference despite allocating no platform device, releasing resources before devm cleanup. Low-privileged local access and a probe failure on a system using the ST DWC3 driver are required; the stale references permit a kernel crash or memory corruption.

The record

CVE
CVE-2024-46674
Published
Sep 13, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=3.18
  2. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <060f41243ad7f6f5249fa7290dda0c01f723d12d
  3. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <1de989668708ce5875efc9d669d227212aeb9a90
  4. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <4c6735299540f3c82a5033d35be76a5c42e0fb18
  5. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <6aee4c5635d81f4809c3b9f0c198a65adfbb2ada
  6. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <b0979a885b9d4df2a25b88e9d444ccaa5f9f495c
  7. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <ddfcfeba891064b88bb844208b43bef2ef970f0c
  8. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <e1e5e8ea2731150d5ba7c707f9e02fafebcfeb49
  9. Affected versionversion=f83fca0707c66e36f14efef7f68702cb12de70b7 <f3498650df0805c75b4e1c94d07423c46cbf4ce1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.18; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <060f41243ad7f6f5249fa7290dda0c01f723d12d; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <1de989668708ce5875efc9d669d227212aeb9a90; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <4c6735299540f3c82a5033d35be76a5c42e0fb18; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <6aee4c5635d81f4809c3b9f0c198a65adfbb2ada; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <b0979a885b9d4df2a25b88e9d444ccaa5f9f495c; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <ddfcfeba891064b88bb844208b43bef2ef970f0c; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <e1e5e8ea2731150d5ba7c707f9e02fafebcfeb49; version=f83fca0707c66e36f14efef7f68702cb12de70b7 <f3498650df0805c75b4e1c94d07423c46cbf4ce1

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NISTCVSS: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.

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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-416Use After Free
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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