CVE-2025-71155

EUVD-2026-4402
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.17.4 ≤
𝑥
< 6.18
linuxlinux_kernel
6.18 ≤
𝑥
< 6.18.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
fixed
bookworm (security)
6.1.164-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.251-1
fixed
forky
6.19.10-1
fixed
sid
6.19.10-1
fixed
trixie
6.12.73-1
fixed
trixie (security)
6.12.74-2
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/2af2abbcbf8573100288e8f8aea2dab8a2a0ceb7
https://git.kernel.org/stable/c/2f393c228cc519ddf19b8c6c05bf15723241aa96