CVE-2024-39485

Service interruption via dangling V4L2 notifier pointers

Published Jul 5, 2024 · Updated May 11, 2026

Improper initialization in Linux kernel V4L2 notifiers allows local users to interrupt versions 6.6 through 6.6.33, 6.9 through 6.9.4, and 6.10.0-rc1. The unregister path removes notifier_entry without reinitializing its list head, leaving dangling list pointers instead of an empty entry. Low-privileged local access and a V4L2 notifier-unregister path are required; published material does not distinguish a crash from a hang.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper initialization in Linux kernel V4L2 notifiers allows local users to interrupt versions 6.6 through 6.6.33, 6.9 through 6.9.4, and 6.10.0-rc1. The unregister path removes notifier_entry without reinitializing its list head, leaving dangling list pointers instead of an empty entry. Low-privileged local access and a V4L2 notifier-unregister path are required; published material does not distinguish a crash from a hang.

The record

CVE
CVE-2024-39485
Published
Jul 5, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-665, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 5, 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=6.6
  2. Affected versionversion=b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 <1aa6cd4adfc0380fa1ccc2f146848940ff882a66
  3. Affected versionversion=b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 <87100b09246202a91fce4a1562955c32229173bb
  4. Affected versionversion=b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 <9537a8425a7a0222999d5839a0b394b1e8834b4a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.6; version=b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 <1aa6cd4adfc0380fa1ccc2f146848940ff882a66; version=b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 <87100b09246202a91fce4a1562955c32229173bb; version=b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 <9537a8425a7a0222999d5839a0b394b1e8834b4a

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/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.

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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-665Improper Initialization
T1499.004Application or System Exploitation

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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