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VulnerabilityPublished Updated

CVE-2025-37974: Linux kernel · s390/pci: Fix missing check for zpci_create_device() error return

Affects Linux kernelSource GCVE Database

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Not known to be exploited · fixed in 6.12.5 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:52 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in 6.12.5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 May 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Linux LinuxAffected
  • =6.12.5
Fixed in–

AI-suggested

A fix is available in Linux kernel version 6.12.5, which includes the missing error check. Users should upgrade to this or later versions to remediate the vulnerability.

Description

A vulnerability in the Linux kernel's s390/pci subsystem was fixed by adding a missing error check for the zpci_create_device() function return value. The function returns an error pointer that must be checked before dereferencing it as a struct zpci_dev pointer. The missing check in the __clp_add() function could lead to improper handling of device creation errors.

References

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