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Vulnerabilities

Vulnerability · CVE-2025-71135

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private i

Published Jan 14, 2026 · catalog updated May 23, 2026 · Linux Linux

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-71135. EPSS is 0.18%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.18%
Remediation
Version ranges on file
Affected products
vendor Linux Linux fa1944bbe6220eb929e2c02e5e8706b908565711 <e5abb6af905de6b2fead8a0b3f32ab0b81468a01

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private is first assigned to conf and then checked: conf = mddev->private; if (!conf) ... If conf is NULL, then mddev->private is also NULL. In this case, null-pointer dereferences can occur when calling raid5_quiesce(): raid5_quiesce(mddev, true); raid5_quiesce(mddev, false); since mddev->private is assigned to conf again in raid5_quiesce(), and conf is dereferenced in several places, for example: conf->quiesce = 0; wake_up(

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux fa1944bbe6220eb929e2c02e5e8706b908565711 <e5abb6af905de6b2fead8a0b3f32ab0b81468a01fa1944bbe6220eb929e2c02e5e8706b908565711 <e5abb6af905de6b2fead8a0b3f32ab0b81468a01

How to fix CVE-2025-71135

  • Upgrade

    CVE-2025-71135 lists a fix boundary at e5abb6af905de6b2fead8a0b3f32ab0b81468a01. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in fa1944bbe6220eb929e2c02e5e8706b908565711 <e5abb6af905de6b2fead8a0b3f32ab0b81468a01

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-71135. EPSS is 0.18%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux fa1944bbe6220eb929e2c02e5e8706b908565711 <e5abb6af905de6b2fead8a0b3f32ab0b81468a01 fa1944bbe6220eb929e2c02e5e8706b908565711 <e5abb6af905de6b2fead8a0b3f32ab0b81468a01. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.18%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 14, 2026 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private is first assigned to conf and then checked: conf = mddev->private; if (!conf) ... If conf is NULL, then mddev->private is also NULL. In this case, null-pointer dereferences can occur when calling raid5_quiesce(): raid5_qu

  2. May 23, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private is first assigned to conf and then checked: conf = mddev->private; if (!conf) ... If conf is NULL, then mddev->private is also NULL. In this case, null-pointer dereferences can occur when calling raid5_quiesce(): raid5_qu

Sources

  • CVE.orgVulnerability recordCVE-2025-71135

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-71135

    30-day exploitation probability 0.18%

    first.org
  • EUVDVulnerability recordEUVD-2026-2467

    In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private is first assigned to conf and then checked: conf = mddev->private; if (!conf) ... If conf is NULL, th

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • FIRST EPSSOct 29, 2026
  • EUVDOct 29, 2026