CVE-2025-71190

Service interruption via leaked mailbox device references

Published Jan 31, 2026 · Updated Jan 31, 2026

Device-reference leak in Linux Kernel allows local users to impair availability through bcm-sba-raid driver lifecycle events. The sba_probe error paths and sba_remove omit put_device() after retaining the mailbox platform device, leaving its reference count elevated. The affected driver must encounter a probe failure or be unbound; published sources do not identify a low-privilege trigger or the exact service-interruption mode.

CVSS severity5.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Device-reference leak in Linux Kernel allows local users to impair availability through bcm-sba-raid driver lifecycle events. The sba_probe error paths and sba_remove omit put_device() after retaining the mailbox platform device, leaving its reference count elevated. The affected driver must encounter a probe failure or be unbound; published sources do not identify a low-privilege trigger or the exact service-interruption mode.

The record

CVE
CVE-2025-71190
Published
Jan 31, 2026
Updated
Jan 31, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-20
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 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=4.13
  2. Affected versionversion=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <2ed1a9de1f2d727ccae5bc9cc7c63ee3519c0c8b
  3. Affected versionversion=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <7c3a46ebf15a9796b763a54272407fdbf945bed8
  4. Affected versionversion=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <c80ca7bdff158401440741bdcf9175bd8608580b
  5. Affected versionversion=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <db6f1d6d31711e73e6a214c73e6a8fb4cda0483d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=4.13; version=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <2ed1a9de1f2d727ccae5bc9cc7c63ee3519c0c8b; version=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <7c3a46ebf15a9796b763a54272407fdbf945bed8; version=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <c80ca7bdff158401440741bdcf9175bd8608580b; version=743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b <db6f1d6d31711e73e6a214c73e6a8fb4cda0483d

Published CVSS scores

0.0Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N
5.5Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-20Improper Input Validation

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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