CVE-2025-37883: Linux kernel · s390/sclp: Add check for get_zeroed_page()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 22:33 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 9 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
- git.kernel.org/stable/c/e1e00dc45648125ef7cb87ebc3b581ac224e7b39 (opens in a new tab)
- git.kernel.org/stable/c/397254706eba9d8f99fd237feede7ab3169a7f9a (opens in a new tab)
- git.kernel.org/stable/c/28e5a867aa542e369e211c2baba7044228809a99 (opens in a new tab)
- git.kernel.org/stable/c/3b3aa72636a6205933609ec274a8747720c1ee3f (opens in a new tab)
- git.kernel.org/stable/c/f69f8a93aacf6e99af7b1cc992d8ca2cc07b96fb (opens in a new tab)
- git.kernel.org/stable/c/3db42c75a921854a99db0a2775814fef97415bac (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00045.html (opens in a new tab)