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Vulnerability record · CVE-2026-31553 · published 24 April 2026

CVE-2026-31553: Linux kernel vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc() Using "(u64 __user *)hva + offset" to get the virtual addresses of S1/S2 descriptors looks really wrong, if offset is not zero. What we want to get for swapping is hva + offset, not hva + offset*8. ;-) Fix it.

8.8 CVSS 3.1 High EPSS 0.17% · top 94.9%
8.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc() Using "(u64 __user *)hva + offset" to get the virtual addresses of S1/S2 descriptors looks really wrong, if offset is not zero. What we want to get for swapping is hva + offset, not hva + offset*8. ;-) Fix it.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/0496acc42fb51eee040b5170cec05cec41385540 Patch
https://git.kernel.org/stable/c/4307e05e568782fc92eff651b09ee5dee88a058d Patch

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Source: NIST National Vulnerability Database (record CVE-2026-31553), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.