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VulnerabilityPublished Updated

CVE-2025-37883: Linux kernel · s390/sclp: Add check for get_zeroed_page()

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 5 Nov 2026, 22:33 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 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

AI-suggested

A fix has been applied in the Linux kernel to add the missing check for get_zeroed_page() and to address the memory leak by adding a free helper function. Users should update to the fixed kernel versions once available. Patch status is not explicitly confirmed in the provided data; check the official Linux kernel advisories for the exact fixed versions and apply updates accordingly.

Description

A vulnerability in the Linux kernel's s390/sclp subsystem involved missing checks for the return value of get_zeroed_page() in sclp_console_init(), which could lead to a null pointer dereference. Additionally, a memory leak caused by loop allocation was addressed by adding a helper function to free allocated memory.

References

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