CVE-2025-71155 (GCVE-0-2025-71155)

Vulnerability from cvelistv5 – Published: 2026-01-23 14:25 – Updated: 2026-01-23 14:25
VLAI?
Title
KVM: s390: Fix gmap_helper_zap_one_page() again
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix gmap_helper_zap_one_page() again A few checks were missing in gmap_helper_zap_one_page(), which can lead to memory corruption in the guest under specific circumstances. Add the missing checks.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5deafa27d9ae040b75d392f60b12e300b42b4792 , < 2af2abbcbf8573100288e8f8aea2dab8a2a0ceb7 (git)
Affected: 5deafa27d9ae040b75d392f60b12e300b42b4792 , < 2f393c228cc519ddf19b8c6c05bf15723241aa96 (git)
Affected: 919efcadb63fc3d3a82c3de7194140e0b28903dc (git)
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    Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.4 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "arch/s390/mm/gmap_helpers.c"
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-23T14:25:54.663Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71155",
    "datePublished": "2026-01-23T14:25:54.663Z",
    "dateReserved": "2026-01-13T15:30:19.663Z",
    "dateUpdated": "2026-01-23T14:25:54.663Z",
    "state": "PUBLISHED"
  },
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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