EUVD-2026-38978

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend...

CVE-2026-53110

CVE-2026-53110 concerns the Linux kernel s390/bpf: the JIT now implements zero-extension for unsigned return values and kfunc arguments (previously only sign-extension was implemented). The fix aligns with s390x ABI requirements, correcting how unsigned values are extended and preventing potentia...