CVE-2022-50644

Service interruption via unbalanced runtime-PM references

Published Dec 9, 2025 · Updated May 11, 2026

Resource leak in the Linux kernel DRA7 ATL clock driver allows local users to interrupt service through failed device probes. In of_dra7_atl_clk_probe, pm_runtime_get_sync increments the usage counter, but several error paths return without a balancing pm_runtime_put_sync. Reachability requires local low-privileged access and a DRA7 ATL device configuration; repeated failures consume runtime-PM references and reduce availability.

CVSS severity4.8
Medium
EPSS probability0.24%
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 Linux kernel DRA7 ATL clock driver allows local users to interrupt service through failed device probes. In of_dra7_atl_clk_probe, pm_runtime_get_sync increments the usage counter, but several error paths return without a balancing pm_runtime_put_sync. Reachability requires local low-privileged access and a DRA7 ATL device configuration; repeated failures consume runtime-PM references and reduce availability.

The record

CVE
CVE-2022-50644
Published
Dec 9, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 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=3.16
  2. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <25fe7b0d596b343e7a5504ba11767115fff8494f
  3. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <27abe45df1dc394c184688d816cbbf2f194d4c6a
  4. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <3441076f83aace85f5d6ccd9ffb301ac6b874776
  5. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <6d01017247eee3fba399f601b0bcb38e4fb88a72
  6. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <9c59a01caba26ec06fefd6ca1f22d5fd1de57d63
  7. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <a9f69663ad571cbd7814dde38e3fcb4876341ed6
  8. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <c01ae99a4e3a0cdf70f7cd758a60a2243eac562c
  9. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <d84f77ef7d57658d7346f8c4797a570aa5e35fa6
  10. Affected versionversion=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <fc39ebf85d0349366b807fe2be848041c8523f03

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.16; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <25fe7b0d596b343e7a5504ba11767115fff8494f; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <27abe45df1dc394c184688d816cbbf2f194d4c6a; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <3441076f83aace85f5d6ccd9ffb301ac6b874776; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <6d01017247eee3fba399f601b0bcb38e4fb88a72; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <9c59a01caba26ec06fefd6ca1f22d5fd1de57d63; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <a9f69663ad571cbd7814dde38e3fcb4876341ed6; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <c01ae99a4e3a0cdf70f7cd758a60a2243eac562c; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <d84f77ef7d57658d7346f8c4797a570aa5e35fa6; version=9ac33b0ce81fa48dd39e7ddfc1bf4519052181dd <fc39ebf85d0349366b807fe2be848041c8523f03

Published CVSS scores

3.3SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

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

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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