CVE-2022-48852

HDMI codec device leakage after driver unbind

Published Jul 16, 2024 · Updated May 11, 2026

Device leak in the Linux VC4 HDMI driver allows local users to leave a codec platform device registered after driver unbind. The bind path registers audio.codec_pdev, but vc4_hdmi_unbind omitted platform_device_unregister(), so a bind-unbind cycle retained the codec device. Reachability requires compatible Broadcom VC4 hardware and a driver unbind; no code execution, data modification, or service interruption is reported.

CVSS severity3.3
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Device leak in the Linux VC4 HDMI driver allows local users to leave a codec platform device registered after driver unbind. The bind path registers audio.codec_pdev, but vc4_hdmi_unbind omitted platform_device_unregister(), so a bind-unbind cycle retained the codec device. Reachability requires compatible Broadcom VC4 hardware and a driver unbind; no code execution, data modification, or service interruption is reported.

The record

CVE
CVE-2022-48852
Published
Jul 16, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 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=5.15
  2. Affected versionversion=91e99e11392937546a94110b14bc155f9cbad0eb <1ed68d776246f167aee9cd79f63f089c40a5e2a3
  3. Affected versionversion=91e99e11392937546a94110b14bc155f9cbad0eb <e40945ab7c7f966d0c37b7bd7b0596497dfe228d
  4. Affected versionversion=91e99e11392937546a94110b14bc155f9cbad0eb <ee22082c3e2f230028afa0e22aa8773b1de3c919

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=91e99e11392937546a94110b14bc155f9cbad0eb <1ed68d776246f167aee9cd79f63f089c40a5e2a3; version=91e99e11392937546a94110b14bc155f9cbad0eb <e40945ab7c7f966d0c37b7bd7b0596497dfe228d; version=91e99e11392937546a94110b14bc155f9cbad0eb <ee22082c3e2f230028afa0e22aa8773b1de3c919

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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