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CVE-2026-93147

s390/bpf: Replace ly instruction with llgf PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 9012cf2491e3c5d28d098b0d6da804af82977032 before 88500a86ab79f01c568de6ed00f5b1c5c79f11d5; affected 9012cf2491e3c5d28d098b0d6da804af82977032 before 5f6cc299938b561cb01e343bab7042611fcee12a
Linux / Linuxaffected 7.2; unaffected 0 before 7.2; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References