CVE-2022-50392

Service interruption via ASoC probe refcount leak

Published Sep 18, 2025 · Updated Sep 18, 2025

Reference-count leakage in the Linux kernel allows local users to interrupt service through the MediaTek MT8183 ASoC driver. In mt8183_mt6358_ts3a227_max98357_dev_probe(), an error path retains the reference returned by of_parse_phandle() instead of releasing it with of_node_put(). Reachability requires the affected MT8183 audio device-tree configuration and a probe failure; the published assessments report availability impact only.

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

What happened

Reference-count leakage in the Linux kernel allows local users to interrupt service through the MediaTek MT8183 ASoC driver. In mt8183_mt6358_ts3a227_max98357_dev_probe(), an error path retains the reference returned by of_parse_phandle() instead of releasing it with of_node_put(). Reachability requires the affected MT8183 audio device-tree configuration and a probe failure; the published assessments report availability impact only.

The record

CVE
CVE-2022-50392
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=11c0269017b212fd47c593307d2dc3eb9713b2d0 <156b0c19c1a44153e34cfdfa5937546a93dcb288
  2. Affected versionversion=11c0269017b212fd47c593307d2dc3eb9713b2d0 <38eef3be38ab895959c442702864212cc3beb96c
  3. Affected versionversion=11c0269017b212fd47c593307d2dc3eb9713b2d0 <574bd4d14a9297a1c69ad41001caf00fdd17d305
  4. Affected versionversion=11c0269017b212fd47c593307d2dc3eb9713b2d0 <82f7c814edda353b4781f356d3ab90e943d5eac4
  5. Affected versionversion=5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=11c0269017b212fd47c593307d2dc3eb9713b2d0 <156b0c19c1a44153e34cfdfa5937546a93dcb288; version=11c0269017b212fd47c593307d2dc3eb9713b2d0 <38eef3be38ab895959c442702864212cc3beb96c; version=11c0269017b212fd47c593307d2dc3eb9713b2d0 <574bd4d14a9297a1c69ad41001caf00fdd17d305; version=11c0269017b212fd47c593307d2dc3eb9713b2d0 <82f7c814edda353b4781f356d3ab90e943d5eac4; version=5.2

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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

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 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.

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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