GHSA-fgfc-g2f4-qw94HighCVSS 7.8

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Replace ly...

Published
September 17, 2026
Last Modified
September 18, 2026

🔗 CVE IDs covered (1)

📋 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.

🔗 References (4)