CVE-2026-68223

Local service interruption via leaked decoder contexts

Published Aug 10, 2026 · Updated Aug 10, 2026

Resource exhaustion in the Linux kernel meson video decoder allows local users to interrupt service by repeatedly triggering failed opens. When vdec_init_ctrls() fails, vdec_open() jumps to err_m2m_release and omits v4l2_m2m_ctx_release(), leaking its V4L2 memory-to-memory context. Exploitation requires local access to the affected Meson decoder device, and repeated initialization failures can deplete resources until service is disrupted.

CVSS severity2.5
Low
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in the Linux kernel meson video decoder allows local users to interrupt service by repeatedly triggering failed opens. When vdec_init_ctrls() fails, vdec_open() jumps to err_m2m_release and omits v4l2_m2m_ctx_release(), leaking its V4L2 memory-to-memory context. Exploitation requires local access to the affected Meson decoder device, and repeated initialization failures can deplete resources until service is disrupted.

The record

CVE
CVE-2026-68223
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772, T1499
Attack vector
local
Privileges
Unavailable

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=3e7f51bd96077acad6acd7b45668f65b44233c4e <1391b75bf0119b5d37f1c1c3078d452a01967f9b
  2. Affected versionversion=3e7f51bd96077acad6acd7b45668f65b44233c4e <2cf0171ad594860e31723c671e37824ce12c01ea
  3. Affected versionversion=3e7f51bd96077acad6acd7b45668f65b44233c4e <940f161f734b25f175a95d2684c2021f6323693a
  4. Affected versionversion=3e7f51bd96077acad6acd7b45668f65b44233c4e <99f3527bd1a27ff798d59177ed045b0dd87deaef
  5. Affected versionversion=3e7f51bd96077acad6acd7b45668f65b44233c4e <c6cd08a71a630f19b10c318e76e3c56e1dd10e00
  6. Affected versionversion=5.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=3e7f51bd96077acad6acd7b45668f65b44233c4e <1391b75bf0119b5d37f1c1c3078d452a01967f9b; version=3e7f51bd96077acad6acd7b45668f65b44233c4e <2cf0171ad594860e31723c671e37824ce12c01ea; version=3e7f51bd96077acad6acd7b45668f65b44233c4e <940f161f734b25f175a95d2684c2021f6323693a; version=3e7f51bd96077acad6acd7b45668f65b44233c4e <99f3527bd1a27ff798d59177ed045b0dd87deaef; version=3e7f51bd96077acad6acd7b45668f65b44233c4e <c6cd08a71a630f19b10c318e76e3c56e1dd10e00; version=5.3

Published CVSS scores

2.5Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

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
PrivilegesUnavailable
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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