CVE-2026-23314

Service interruption via device-node reference leak

Published Mar 25, 2026 · Updated Mar 25, 2026

Reference leak in Linux Kernel 6.18 through 6.18.16, 6.19 through 6.19.6, and 7.0-rc1 allows local users to interrupt service. The bq257xx_reg_dt_parse_gpio() function returns when an expected subchild node is absent without first calling of_node_put(child), retaining the device-node reference. The path requires a bq257xx device node with a missing matching subchild; the documented consequence is limited to availability loss.

CVSS severity5.5
Medium
EPSS probability0.12%
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 6.18 through 6.18.16, 6.19 through 6.19.6, and 7.0-rc1 allows local users to interrupt service. The bq257xx_reg_dt_parse_gpio() function returns when an expected subchild node is absent without first calling of_node_put(child), retaining the device-node reference. The path requires a bq257xx device node with a missing matching subchild; the documented consequence is limited to availability loss.

The record

CVE
CVE-2026-23314
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 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=6.18
  2. Affected versionversion=981dd162b63578aee34b5c68795e246734b76d70 <4baaddaa44af01cd4ce239493060738fd0881835
  3. Affected versionversion=981dd162b63578aee34b5c68795e246734b76d70 <93b64bef8cd4074806d981ed1b4c38c3ae0542e3
  4. Affected versionversion=981dd162b63578aee34b5c68795e246734b76d70 <aba54a5a113667df9d339f4192650f6bc27e9d1f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.18; version=981dd162b63578aee34b5c68795e246734b76d70 <4baaddaa44af01cd4ce239493060738fd0881835; version=981dd162b63578aee34b5c68795e246734b76d70 <93b64bef8cd4074806d981ed1b4c38c3ae0542e3; version=981dd162b63578aee34b5c68795e246734b76d70 <aba54a5a113667df9d339f4192650f6bc27e9d1f

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 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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