Linux Kernel up to 5.19.1 video clcdfb_of_init_display reference count

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 5.19.1. This vulnerability affects the function clcdfb_of_init_display of the component Video. Such manipulation leads to reference count. This vulnerability is uniquely identified as CVE-2022-50109. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.19.1 and classified as critical. Affected by this issue is the function clcdfb_of_init_display of the component video. The manipulation with an unknown input leads to a reference count vulnerability. Using CWE to declare the problem leads to CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: amba-clcd: Fix refcount leak bugs In clcdfb_of_init_display(), we should call of_node_put() for the references returned by of_graph_get_next_endpoint() and of_graph_get_remote_port_parent() which have increased the refcount. Besides, we should call of_node_put() both in fail path or when the references are not used anymore.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-50109 since 06/18/2025. The attack may be launched remotely. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 297309 (EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2026-1123)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18 or 5.19.2 eliminates this vulnerability. Applying the patch 2688df86c02da6bdc9866b62d974e169a2678883/a97ff8a949dbf41be89f436b2b1a2b3d794493df/49a4c1a87ef884e43cdda58b142a2a30f2f09efc/da276dc288bf838ea0fd778b5441ec0f601c69f7/29f06f1905c312671a09ee85ca92ac04a1d9f305/a51519ebd0fdad3546463018b8f6bc3b0f4d3032/a88ab277cca99aeb9a3b2b7db358f1a6dd528b0c/26c2b7d9fac42eb8317f3ceefa4c1a9a9170ca69 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (297309) and CERT Bund (WID-SEC-2025-1350). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Avamar
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Reference count
CWE: CWE-911 / CWE-664
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 297309
Nessus Name: EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2026-1123)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.14.291/4.19.256/5.4.211/5.10.137/5.15.61/5.18.18/5.19.2
Patch: 2688df86c02da6bdc9866b62d974e169a2678883/a97ff8a949dbf41be89f436b2b1a2b3d794493df/49a4c1a87ef884e43cdda58b142a2a30f2f09efc/da276dc288bf838ea0fd778b5441ec0f601c69f7/29f06f1905c312671a09ee85ca92ac04a1d9f305/a51519ebd0fdad3546463018b8f6bc3b0f4d3032/a88ab277cca99aeb9a3b2b7db358f1a6dd528b0c/26c2b7d9fac42eb8317f3ceefa4c1a9a9170ca69

Timelineinfo

06/18/2025 🔍
06/18/2025 +0 days 🔍
06/18/2025 +0 days 🔍
02/01/2026 +228 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50109 (🔍)
GCVE (CVE): GCVE-0-2022-50109
GCVE (VulDB): GCVE-100-313052
CERT Bund: WID-SEC-2025-1350 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 06/18/2025 15:08
Updated: 02/01/2026 01:29
Changes: 06/18/2025 15:08 (59), 10/19/2025 10:45 (7), 11/19/2025 16:24 (12), 12/01/2025 02:35 (1), 02/01/2026 01:29 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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