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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
8e03e8316eb242af307d1c789d09f1a1457cf9a3 affected < 75867536746ab2d034488a6a93ee6cde83553342
8e03e8316eb242af307d1c789d09f1a1457cf9a3 affected < 88e22ffd1e46b95e40a6afabe486deb1d31a3ae1
Linux Linux affected
Version Status Constraints
7.0 affected —
0 unaffected < 7.0
7.2.9 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/75867536746ab2d034488a6a93ee6cde83553342 cve-icon cve-icon
https://git.kernel.org/stable/c/88e22ffd1e46b95e40a6afabe486deb1d31a3ae1 cve-icon cve-icon
History

Sun, 18 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Sun, 18 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title KVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-18T15:20:22.978Z

Reserved: 2026-09-25T10:25:14.362Z

Link: CVE-2026-98651

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-18T16:17:18.387

Modified: 2026-10-18T16:17:18.387

Link: CVE-2026-98651

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T19:15:14Z

Weaknesses