CVE-2022-48860

Kernel resource exhaustion via unreleased device-node reference

Published Jul 16, 2024 · Updated May 11, 2026

A reference leak in the Linux Xilinx Emaclite driver allows local users to consume kernel memory through repeated device probing. In xemaclite_of_probe, of_parse_phandle increments the PHY device-tree node reference, but the probe path retains it without of_node_put. Reachability requires the Xilinx Emaclite driver and a matching device-tree node; sustained triggering can hang or crash the host.

CVSS severity5.5
Medium
EPSS probability0.22%
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 Xilinx Emaclite driver allows local users to consume kernel memory through repeated device probing. In xemaclite_of_probe, of_parse_phandle increments the PHY device-tree node reference, but the probe path retains it without of_node_put. Reachability requires the Xilinx Emaclite driver and a matching device-tree node; sustained triggering can hang or crash the host.

The record

CVE
CVE-2022-48860
Published
Jul 16, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
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=2.6.34
  2. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <1852854ee349881efb78ccdbbb237838975902e4
  3. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <5e7c402892e189a7bc152b125e72261154aa585d
  4. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <669172ce976608b25a2f76f3c65d47f042d125c9
  5. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <8609e29611befc4bfbe7a91bb50fc65ae72ff549
  6. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <8ee065a7a9b6a3976c16340503677efc4d8351f6
  7. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <979b418b96e35f07136f77962ccfaa54cf3e30e1
  8. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <b19ab4b38b06aae12442b2de95ccf58b5dc53584
  9. Affected versionversion=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <b7220f8e9d6c6b9594ddfb3125dad938cd478b1f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.34; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <1852854ee349881efb78ccdbbb237838975902e4; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <5e7c402892e189a7bc152b125e72261154aa585d; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <669172ce976608b25a2f76f3c65d47f042d125c9; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <8609e29611befc4bfbe7a91bb50fc65ae72ff549; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <8ee065a7a9b6a3976c16340503677efc4d8351f6; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <979b418b96e35f07136f77962ccfaa54cf3e30e1; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <b19ab4b38b06aae12442b2de95ccf58b5dc53584; version=5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d <b7220f8e9d6c6b9594ddfb3125dad938cd478b1f

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
T1499Endpoint Denial of Service

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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