CVE-2025-71155

HIGH

Linux Kernel < 6.18 - Out-of-bounds Write in KVM s390 gmap_helper_zap_one_page

Title source: llm

Description

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.

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/2af2abbcbf8573100288e8f8aea2dab8a2a0ceb7

Patch

https://git.kernel.org/stable/c/2f393c228cc519ddf19b8c6c05bf15723241aa96

Scores

CVSS v3 7.8

EPSS 0.0003

EPSS Percentile 8.7%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (10)

linux/Kernel 6.18.0 - 6.18.4linux

Linux/Linux < 6.18

Linux/Linux 5deafa27d9ae040b75d392f60b12e300b42b4792 - 2af2abbcbf8573100288e8f8aea2dab8a2a0ceb7

Linux/Linux 5deafa27d9ae040b75d392f60b12e300b42b4792 - 2f393c228cc519ddf19b8c6c05bf15723241aa96

Linux/Linux 6.17.4 - 6.18

Linux/Linux 6.18

Linux/Linux 6.18.4 - 6.18.*

Linux/Linux 6.19

Linux/Linux 919efcadb63fc3d3a82c3de7194140e0b28903dc

linux/linux_kernel 6.17.4 - 6.18

Published Jan 23, 2026

Tracked Since Feb 18, 2026