CVE-2024-26749

Service interruption via freed request list access

Published Apr 3, 2024 · Updated May 11, 2026

Use-after-free in the cdns3 USB gadget driver in Linux 5.4 through 6.8-rc5 allows local users to trigger a freed-memory read. cdns3_gadget_ep_disable() frees priv_req through cdns3_gadget_ep_free_request() and then passes priv_req->list to list_del_init(). Local low-privileged access and an active Cadence USB3 gadget controller path are required; the demonstrated consequence is a kernel BUG.

CVSS severity7.8
High
EPSS probability0.24%
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 cdns3 USB gadget driver in Linux 5.4 through 6.8-rc5 allows local users to trigger a freed-memory read. cdns3_gadget_ep_disable() frees priv_req through cdns3_gadget_ep_free_request() and then passes priv_req->list to list_del_init(). Local low-privileged access and an active Cadence USB3 gadget controller path are required; the demonstrated consequence is a kernel BUG.

The record

CVE
CVE-2024-26749
Published
Apr 3, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 3, 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=5.4
  2. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <2134e9906e17b1e5284300fab547869ebacfd7d9
  3. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <29e42e1578a10c611b3f1a38f3229b2d664b5d16
  4. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <4e5c73b15d95452c1ba9c771dd013a3fbe052ff3
  5. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <9a07244f614bc417de527b799da779dcae780b5d
  6. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <b40328eea93c75a5645891408010141a0159f643
  7. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6
  8. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <cfa9abb5570c489dabf6f7fb3a066cc576fc8824

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.4; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <2134e9906e17b1e5284300fab547869ebacfd7d9; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <29e42e1578a10c611b3f1a38f3229b2d664b5d16; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <4e5c73b15d95452c1ba9c771dd013a3fbe052ff3; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <9a07244f614bc417de527b799da779dcae780b5d; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <b40328eea93c75a5645891408010141a0159f643; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <cfa9abb5570c489dabf6f7fb3a066cc576fc8824

Published CVSS scores

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

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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

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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