CVE-2022-50112

Service interruption via device-node reference leak

Published Jun 18, 2025 · Updated May 11, 2026

Reference leak in Linux kernel rpmsg Qualcomm SMD support from 4.9 through 5.19.1 allows local users to interrupt service. The qcom_smd_parse_edge function retains the device-node reference returned by of_parse_phandle after parsing an edge instead of releasing it with of_node_put. Reachability requires the Qualcomm SMD backend to parse an rpmsg edge; repeated parsing can exhaust kernel resources and interrupt service.

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

Reference leak in Linux kernel rpmsg Qualcomm SMD support from 4.9 through 5.19.1 allows local users to interrupt service. The qcom_smd_parse_edge function retains the device-node reference returned by of_parse_phandle after parsing an edge instead of releasing it with of_node_put. Reachability requires the Qualcomm SMD backend to parse an rpmsg edge; repeated parsing can exhaust kernel resources and interrupt service.

The record

CVE
CVE-2022-50112
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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=4.9
  2. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <43e42c25a232a6862e7d2f292a069ac828559030
  3. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <65382585f067d4256ba087934f30f85c9b6984de
  4. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <8ee5d40ae29e63f6fd6cbf9dcfc0a48c474013db
  5. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <9715809b9eeb85b3f9b083857a2f29a9e2351125
  6. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <ae7fdbab97df6a2115eed6b7e39c278b805c9c7d
  7. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <cb50423e46ea585620a6be307d7f7b71587936b7
  8. Affected versionversion=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <ece6cfe62a103cc6032664983be557f1b5a1ff7e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.9; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <43e42c25a232a6862e7d2f292a069ac828559030; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <65382585f067d4256ba087934f30f85c9b6984de; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <8ee5d40ae29e63f6fd6cbf9dcfc0a48c474013db; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <9715809b9eeb85b3f9b083857a2f29a9e2351125; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <ae7fdbab97df6a2115eed6b7e39c278b805c9c7d; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <cb50423e46ea585620a6be307d7f7b71587936b7; version=53e2822e56c7bc67e5dc19acb1e5fbb8ebff8614 <ece6cfe62a103cc6032664983be557f1b5a1ff7e

Published CVSS scores

5.5NVDCVSS: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

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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