CVE-2022-48656

Service interruption via device-node reference leak

Published Apr 28, 2024 · Updated May 11, 2026

Resource leak in the TI K3 UDMA driver in Linux allows local users to interrupt service by exercising the affected driver. In of_xudma_dev_get(), a reference returned by of_parse_phandle() is checked before of_node_put(), so the failure path returns without releasing it. Reachability requires local access and the TI K3 UDMA device-tree path; repeated execution consumes kernel resources and interrupts availability.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in the TI K3 UDMA driver in Linux allows local users to interrupt service by exercising the affected driver. In of_xudma_dev_get(), a reference returned by of_parse_phandle() is checked before of_node_put(), so the failure path returns without releasing it. Reachability requires local access and the TI K3 UDMA device-tree path; repeated execution consumes kernel resources and interrupts availability.

The record

CVE
CVE-2022-48656
Published
Apr 28, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 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=5.6
  2. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <a17df55bf6d536712da6902a83db82b82e67d5a2
  3. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <aa11dae059a439af82bae541b134f8f53ac177b5
  4. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <dd5a6c5a08752b613e83ad2cb5133e72a64b876d
  5. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <f9fdb0b86f087c2b7f6c6168dd0985a3c1eda87e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.6; version=d702419134133db1eab2067dc6ea5723467fd917 <a17df55bf6d536712da6902a83db82b82e67d5a2; version=d702419134133db1eab2067dc6ea5723467fd917 <aa11dae059a439af82bae541b134f8f53ac177b5; version=d702419134133db1eab2067dc6ea5723467fd917 <dd5a6c5a08752b613e83ad2cb5133e72a64b876d; version=d702419134133db1eab2067dc6ea5723467fd917 <f9fdb0b86f087c2b7f6c6168dd0985a3c1eda87e

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 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

CWE-401Missing Release of Memory after Effective Lifetime

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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