CVE-2022-50249

Service interrupt via unreleased device-node reference

Published Sep 15, 2025 · Updated Sep 15, 2025

Resource leak in the Linux kernel 3.7 and later allows local users to interrupt service through malformed DDR timing data. In drivers/memory/of_memory.c, of_get_ddr_timings() exits the child-node loop after a timing parse error without calling of_node_put(), leaving the automatically acquired node reference unreleased. The only published attack assessment requires local low-privileged access, while the vendor does not disclose a repeatable trigger from user space.

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

Resource leak in the Linux kernel 3.7 and later allows local users to interrupt service through malformed DDR timing data. In drivers/memory/of_memory.c, of_get_ddr_timings() exits the child-node loop after a timing parse error without calling of_node_put(), leaving the automatically acquired node reference unreleased. The only published attack assessment requires local low-privileged access, while the vendor does not disclose a repeatable trigger from user space.

The record

CVE
CVE-2022-50249
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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=3.7
  2. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <05215fb32010d4afb68fbdbb4d237df6e2d4567b
  3. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <1c6cac6fa4d08aea161f83d38117d733b3c3a000
  4. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <2680690f9ce4e6abbb4f559e97271c15b7eeda97
  5. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <62ccab6e3376f8a22167c3b81468ae4f3e7d25f1
  6. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <68c9c4e6495b825be3a8946df1a0148399555fe4
  7. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <85a40bfb8e7a170abcf9dae2c0898a1983e48daa
  8. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <a4d0bd4388e1a39df47e8aaa044ef6a7ee626e48
  9. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <a4f7eb83852a65b6f8dea7dcc42b7c76d4d9b0a3
  10. Affected versionversion=e6b42eb6a66c188642aeb447312938c6f6ebee86 <daaec4b3fe2297b022c6b2d6bf48b6e5265a60b9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.7; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <05215fb32010d4afb68fbdbb4d237df6e2d4567b; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <1c6cac6fa4d08aea161f83d38117d733b3c3a000; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <2680690f9ce4e6abbb4f559e97271c15b7eeda97; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <62ccab6e3376f8a22167c3b81468ae4f3e7d25f1; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <68c9c4e6495b825be3a8946df1a0148399555fe4; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <85a40bfb8e7a170abcf9dae2c0898a1983e48daa; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <a4d0bd4388e1a39df47e8aaa044ef6a7ee626e48; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <a4f7eb83852a65b6f8dea7dcc42b7c76d4d9b0a3; version=e6b42eb6a66c188642aeb447312938c6f6ebee86 <daaec4b3fe2297b022c6b2d6bf48b6e5265a60b9

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

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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