CVE-2022-50429

Local service interruption via device-tree refcount leak

Published Oct 1, 2025 · Updated Oct 1, 2025

Resource leak in the Linux kernel allows local users to interrupt service by triggering an LPDDR3 timing-data parsing failure. The of_lpddr3_get_ddr_timings function leaves the current device-tree child referenced when of_lpddr3_do_get_timings fails and control jumps out of for_each_child_of_node without of_node_put. Exploitation requires local low-privileged access and the affected LPDDR3 device-tree path; repeated leaked references can exhaust kernel resources.

CVSS severity5.5
Medium
EPSS probability0.15%
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 allows local users to interrupt service by triggering an LPDDR3 timing-data parsing failure. The of_lpddr3_get_ddr_timings function leaves the current device-tree child referenced when of_lpddr3_do_get_timings fails and control jumps out of for_each_child_of_node without of_node_put. Exploitation requires local low-privileged access and the affected LPDDR3 device-tree path; repeated leaked references can exhaust kernel resources.

The record

CVE
CVE-2022-50429
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=5.5
  2. Affected versionversion=976897dd96db94c74209d0a0671d7a73aa02fab9 <1d312c12c91f831fcc48623c921f2d4560edb159
  3. Affected versionversion=976897dd96db94c74209d0a0671d7a73aa02fab9 <3b321bf7687968a090cf6b62bd8e67d692f59a16
  4. Affected versionversion=976897dd96db94c74209d0a0671d7a73aa02fab9 <48af14fb0eaa63d9aa68f59fb0b205ec55a95636
  5. Affected versionversion=976897dd96db94c74209d0a0671d7a73aa02fab9 <7e053784c4c70df28324106d476778be7a4519b3
  6. Affected versionversion=976897dd96db94c74209d0a0671d7a73aa02fab9 <daab421fc2dc7d6ae7eb20a3f565ae09652c68b9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.5; version=976897dd96db94c74209d0a0671d7a73aa02fab9 <1d312c12c91f831fcc48623c921f2d4560edb159; version=976897dd96db94c74209d0a0671d7a73aa02fab9 <3b321bf7687968a090cf6b62bd8e67d692f59a16; version=976897dd96db94c74209d0a0671d7a73aa02fab9 <48af14fb0eaa63d9aa68f59fb0b205ec55a95636; version=976897dd96db94c74209d0a0671d7a73aa02fab9 <7e053784c4c70df28324106d476778be7a4519b3; version=976897dd96db94c74209d0a0671d7a73aa02fab9 <daab421fc2dc7d6ae7eb20a3f565ae09652c68b9

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

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.

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Technologies

Your stack

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Your stack

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