CVE-2022-50109

Service interruption via AMBA CLCD reference leaks

Published Jun 18, 2025 · Updated May 11, 2026

A reference leak in the Linux AMBA CLCD framebuffer driver allows local users to cause a service interrupt by exhausting kernel memory. The clcdfb_of_init_display() function fails to release references returned by of_graph_get_next_endpoint() and of_graph_get_remote_port_parent() on success and failure paths. Triggering the leak requires the AMBA CLCD driver to initialize a matching device-tree display graph; no data disclosure or modification is reported.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A reference leak in the Linux AMBA CLCD framebuffer driver allows local users to cause a service interrupt by exhausting kernel memory. The clcdfb_of_init_display() function fails to release references returned by of_graph_get_next_endpoint() and of_graph_get_remote_port_parent() on success and failure paths. Triggering the leak requires the AMBA CLCD driver to initialize a matching device-tree display graph; no data disclosure or modification is reported.

The record

CVE
CVE-2022-50109
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE 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=3.17
  2. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <2688df86c02da6bdc9866b62d974e169a2678883
  3. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <26c2b7d9fac42eb8317f3ceefa4c1a9a9170ca69
  4. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <29f06f1905c312671a09ee85ca92ac04a1d9f305
  5. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <49a4c1a87ef884e43cdda58b142a2a30f2f09efc
  6. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <a51519ebd0fdad3546463018b8f6bc3b0f4d3032
  7. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <a88ab277cca99aeb9a3b2b7db358f1a6dd528b0c
  8. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <a97ff8a949dbf41be89f436b2b1a2b3d794493df
  9. Affected versionversion=d10715be03bd8bad59ddc50236cb140c3bd73c7b <da276dc288bf838ea0fd778b5441ec0f601c69f7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.17; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <2688df86c02da6bdc9866b62d974e169a2678883; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <26c2b7d9fac42eb8317f3ceefa4c1a9a9170ca69; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <29f06f1905c312671a09ee85ca92ac04a1d9f305; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <49a4c1a87ef884e43cdda58b142a2a30f2f09efc; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <a51519ebd0fdad3546463018b8f6bc3b0f4d3032; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <a88ab277cca99aeb9a3b2b7db358f1a6dd528b0c; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <a97ff8a949dbf41be89f436b2b1a2b3d794493df; version=d10715be03bd8bad59ddc50236cb140c3bd73c7b <da276dc288bf838ea0fd778b5441ec0f601c69f7

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

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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