CVE-2026-68210

Service interruption via retained DCMI notifier

Published Aug 10, 2026 · Updated Aug 10, 2026

Resource leakage in Linux 4.20 and later allows local users to cause system instability through an STM32 DCMI camera probe failure. The stm32-dcmi driver's dcmi_graph_init() registers a V4L2 asynchronous notifier, but the later probe error path cleans it up without first unregistering it. Reachability requires an STM32 DCMI camera and a reset assertion or deassertion failure after graph initialization; systems without stm32-dcmi are unaffected.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leakage in Linux 4.20 and later allows local users to cause system instability through an STM32 DCMI camera probe failure. The stm32-dcmi driver's dcmi_graph_init() registers a V4L2 asynchronous notifier, but the later probe error path cleans it up without first unregistering it. Reachability requires an STM32 DCMI camera and a reset assertion or deassertion failure after graph initialization; systems without stm32-dcmi are unaffected.

The record

CVE
CVE-2026-68210
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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=4.20
  2. Affected versionversion=d079f94c90469f413920b9f2b201537fac2ceb06 <084973ebd67b28f0945c5d45408f86c58b540110
  3. Affected versionversion=d079f94c90469f413920b9f2b201537fac2ceb06 <37ff63c5d7119cbc5c6bacdcc658add6008a8e1f
  4. Affected versionversion=d079f94c90469f413920b9f2b201537fac2ceb06 <4b7ee504969e074725e439c949f2483e5fa5572a
  5. Affected versionversion=d079f94c90469f413920b9f2b201537fac2ceb06 <6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7
  6. Affected versionversion=d079f94c90469f413920b9f2b201537fac2ceb06 <931abe1deb65b919d23fa203d7f6d6fbd4fccd8e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.20; version=d079f94c90469f413920b9f2b201537fac2ceb06 <084973ebd67b28f0945c5d45408f86c58b540110; version=d079f94c90469f413920b9f2b201537fac2ceb06 <37ff63c5d7119cbc5c6bacdcc658add6008a8e1f; version=d079f94c90469f413920b9f2b201537fac2ceb06 <4b7ee504969e074725e439c949f2483e5fa5572a; version=d079f94c90469f413920b9f2b201537fac2ceb06 <6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7; version=d079f94c90469f413920b9f2b201537fac2ceb06 <931abe1deb65b919d23fa203d7f6d6fbd4fccd8e

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8CVE.orgCVSS: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-772Missing Release of Resource after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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