CVE-2022-49680

Service interruption via Exynos device-node reference leak

Published Feb 26, 2025 · Updated May 11, 2026

Resource leakage in the Exynos PMU mapping path in affected Linux branches beginning with 3.17 allows local users to interrupt service. The exynos_map_pmu function retains the reference returned by of_find_matching_node because it omits of_node_put after using the device-tree node. The flaw requires local low-privileged access on an ARM Exynos system; published impact is limited to service interruption.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leakage in the Exynos PMU mapping path in affected Linux branches beginning with 3.17 allows local users to interrupt service. The exynos_map_pmu function retains the reference returned by of_find_matching_node because it omits of_node_put after using the device-tree node. The flaw requires local low-privileged access on an ARM Exynos system; published impact is limited to service interruption.

The record

CVE
CVE-2022-49680
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 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=fce9e5bb25264153f9f002eada41757118d25ba9 <31d09571bb071c20f6bdc0bb7ac1ef8dd2987c04
  3. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <545ae5cbae839ce39bfe09828e413f1c916082de
  4. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <68f28d52e6cbab8dcfa249cac4356d1d0573e868
  5. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <7571bcecf01b69f0d3ec60ca41ce5d4c75411a4a
  6. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <c4c79525042a4a7df96b73477feaf232fe44ae81
  7. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <d23f76018e17618559da9eea179d137362023f95
  8. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <f9b77a52937582a5b99a5a07e4ef1e2f48f87347
  9. Affected versionversion=fce9e5bb25264153f9f002eada41757118d25ba9 <fc354856e9fad9cd36e2ad28f9da70716025055a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.17; version=fce9e5bb25264153f9f002eada41757118d25ba9 <31d09571bb071c20f6bdc0bb7ac1ef8dd2987c04; version=fce9e5bb25264153f9f002eada41757118d25ba9 <545ae5cbae839ce39bfe09828e413f1c916082de; version=fce9e5bb25264153f9f002eada41757118d25ba9 <68f28d52e6cbab8dcfa249cac4356d1d0573e868; version=fce9e5bb25264153f9f002eada41757118d25ba9 <7571bcecf01b69f0d3ec60ca41ce5d4c75411a4a; version=fce9e5bb25264153f9f002eada41757118d25ba9 <c4c79525042a4a7df96b73477feaf232fe44ae81; version=fce9e5bb25264153f9f002eada41757118d25ba9 <d23f76018e17618559da9eea179d137362023f95; version=fce9e5bb25264153f9f002eada41757118d25ba9 <f9b77a52937582a5b99a5a07e4ef1e2f48f87347; version=fce9e5bb25264153f9f002eada41757118d25ba9 <fc354856e9fad9cd36e2ad28f9da70716025055a

Published CVSS scores

5.5CISA ADPCVSS: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

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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

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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