OCTOBER 12, 2026
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Case File

CVE-2026-93147

HIGH · CVSS 7.8 EPSS 0.17%

Source: NVD + CISA KEV + EPSS · Published 2026-09-17 · Last synced 2026-10-12

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel, specifically in the s390 architecture where the ly instruction improperly loads a 32-bit value into a 64-bit register without zeroing the upper bits. This can lead to potential data corruption or unexpected behavior in applications relying on BPF (Berkeley Packet Filter). Organizations using Linux on s390 systems should prioritize addressing this issue to ensure the integrity and reliability of their applications.

CVE
CVE-2026-93147
Severity
HIGH
CVSS
7.8
EPSS
0.17%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Replace ly instruction with llgf cpu_nr is a 32 bit value and BPF_REG_0 is a 64 bit register, when ly loads the cpu_nr into BPF_REG_0 it does not zero the upper bits, but llgf does.