CVE-2024-36977

Local service interruption via premature request unmapping

Published Jun 18, 2024 · Updated Aug 5, 2026

Race condition in the Linux kernel DWC3 gadget driver allows local users to interrupt service by causing SMMU faults. The __dwc3_stop_active_transfer() path unmaps queued IN requests before an IOC-cleared EndXfer command has necessarily completed, letting the controller access unmapped requests. Triggering the race requires a DWC3 USB 3.10a-or-later controller, a queued IN transfer, and a concurrent FunctionFS soft disconnect.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Race condition in the Linux kernel DWC3 gadget driver allows local users to interrupt service by causing SMMU faults. The __dwc3_stop_active_transfer() path unmaps queued IN requests before an IOC-cleared EndXfer command has necessarily completed, letting the controller access unmapped requests. Triggering the race requires a DWC3 USB 3.10a-or-later controller, a queued IN transfer, and a concurrent FunctionFS soft disconnect.

The record

CVE
CVE-2024-36977
Published
Jun 18, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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

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=6.1
  2. Affected versionversion=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <1ba145f05b5c8f0b1a947a0633b5edff5dd1f1c5
  3. Affected versionversion=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <1d26ba0944d398f88aaf997bda3544646cf21945
  4. Affected versionversion=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <341eb08dbca9eae05308c442fbfab1813a44c97a
  5. Affected versionversion=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <4a387e032909c6dc2b479452c5bbe9a252057925
  6. Affected versionversion=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <ec96bcf5f96a7a5c556b0e881ac3e5c3924d542c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.1; version=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <1ba145f05b5c8f0b1a947a0633b5edff5dd1f1c5; version=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <1d26ba0944d398f88aaf997bda3544646cf21945; version=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <341eb08dbca9eae05308c442fbfab1813a44c97a; version=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <4a387e032909c6dc2b479452c5bbe9a252057925; version=b353eb6dc285a0775a447f53e5b2a50bf3f9684f <ec96bcf5f96a7a5c556b0e881ac3e5c3924d542c

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux Kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.7CISA-ADPCVSS:3.1/AV:L/AC:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo