VYPR
Medium severity5.5NVD Advisory· Published Apr 22, 2026· Updated Apr 28, 2026

CVE-2026-31483

CVE-2026-31483

Description

In the Linux kernel, the following vulnerability has been resolved:

s390/syscalls: Add spectre boundary for syscall dispatch table

The s390 syscall number is directly controlled by userspace, but does not have an array_index_nospec() boundary to prevent access past the syscall function pointer tables.

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Affected products

35

Patches

Vulnerability mechanics

References

7

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