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
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
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Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
not-affected
bookworm (security)
6.1.162-1
fixed
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.249-1
fixed
forky
6.18.9-1
fixed
sid
6.18.12-1
fixed
trixie
6.12.63-1
not-affected
trixie (security)
6.12.73-1
fixed
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/2af2abbcbf8573100288e8f8aea2dab8a2a0ceb7
https://git.kernel.org/stable/c/2f393c228cc519ddf19b8c6c05bf15723241aa96