CVE-2026-98651

medium

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key() Some callers pass NULL as oldkey. Calling page_cond_set_storage_key() will cause that NULL pointer to get dereferenced. Fix by checking for NULL and assigning the pointer to a dummy local variable to avoid crashes.

References

https://git.kernel.org/stable/c/88e22ffd1e46b95e40a6afabe486deb1d31a3ae1

https://git.kernel.org/stable/c/75867536746ab2d034488a6a93ee6cde83553342

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103565

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 5.5

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

Severity: Medium

EPSS

EPSS: 0.00155