{"id":"CVE-2026-93147","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Replace ly instruction with llgf\n\ncpu_nr is a 32 bit value and BPF_REG_0 is a 64 bit register, when ly loads\nthe cpu_nr into BPF_REG_0 it does not zero the up…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Replace ly instruction with llgf\n\ncpu_nr is a 32 bit value and BPF_REG_0 is a 64 bit register, when ly loads\nthe cpu_nr into BPF_REG_0 it does not zero the up…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 9012cf2491e3c5d28d098b0d6da804af82977032 < 88500a86ab79f01c568de6ed00f5b1c5c79f11d5","Linux >= 9012cf2491e3c5d28d098b0d6da804af82977032 < 5f6cc299938b561cb01e343bab7042611fcee12a","Linux 7.2"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:18:22.650","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93147","references":[{"url":"https://git.kernel.org/stable/c/5f6cc299938b561cb01e343bab7042611fcee12a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/88500a86ab79f01c568de6ed00f5b1c5c79f11d5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00154,"epssPercentile":0.04912,"ingestedAt":"2026-09-17T16:21:47.742Z","slug":"CVE-2026-93147","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Replace ly instruction with llgf\n\ncpu_nr is a 32 bit value and BPF_REG_0 is a 64 bit register, when ly loads\nthe cpu_nr into BPF_REG_0 it does not zero the upper bits, but llgf does.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207395,"id":"CVE-2026-93147","ts":1789757343571,"field":"cvss","old":null,"new":"7.8"},{"seq":207394,"id":"CVE-2026-93147","ts":1789757343571,"field":"severity","old":"none","new":"high"}]}