CVE-2022-50539

Local availability loss via device-node reference leak

Published Oct 7, 2025 · Updated Oct 7, 2025

Reference-count leak in Linux kernel 3.18 through 6.1.15 and 6.2 through 6.2.2 allows local users to cause availability loss on ARM OMAP2+ systems. The omap4_sram_init() path retains the reference returned by of_find_compatible_node() instead of releasing the device-tree node with of_node_put(). The affected code is limited to ARM OMAP2+ initialization, and public sources identify neither an attacker-controlled trigger nor a specific failure mode.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference-count leak in Linux kernel 3.18 through 6.1.15 and 6.2 through 6.2.2 allows local users to cause availability loss on ARM OMAP2+ systems. The omap4_sram_init() path retains the reference returned by of_find_compatible_node() instead of releasing the device-tree node with of_node_put(). The affected code is limited to ARM OMAP2+ initialization, and public sources identify neither an attacker-controlled trigger nor a specific failure mode.

The record

CVE
CVE-2022-50539
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2025Record 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <049875b76660bbdc4873a915afb294f954eb7320
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1d9452ae3bdb830f9309cf10a2f65977999cb14e
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7c32919a378782c95c72bc028b5c30dfe8c11f82

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <049875b76660bbdc4873a915afb294f954eb7320; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1d9452ae3bdb830f9309cf10a2f65977999cb14e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7c32919a378782c95c72bc028b5c30dfe8c11f82

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

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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