CVE Catalog

CVE-2026-72011

Low risk· EPSS 12%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

12th percentile - higher than 12% of all known CVEs

Summary

In the Linux kernel for s390, the function memtop_get_page_count() lacks an array_index_nospec() call, allowing speculative execution with a user-controlled 'level' value used to read from an array.

Risk Assessment

An attacker could exploit speculative execution to leak kernel memory data (Spectre).

Recommendation

Apply a Linux kernel update that includes the fix adding array_index_nospec() in memtop_get_page_count().

Other vulnerabilities in Linux kernel

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Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: s390/diag: Add missing array_index_nospec() call to memtop_get_page_count() 'level' is user space controlled and used to read from an array. Add the missing array_index_nospec() call to prevent speculative execution.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS