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THREAT OPS › Threat News › [NVD] CVE-2026-89456 (HIGH 7.0) — In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Propagate partial completion length across ERP recovery dasd_default_erp_postaction() copies the timing and device state from the finished ERP request back to the original request but drops proc_byte

[NVD] CVE-2026-89456 (HIGH 7.0) — In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Propagate partial completion length across ERP recovery dasd_default_erp_postaction() copies the timing and device state from the finished ERP request back to the original request but drops proc_byte

mednvdPublished 2026-09-11

CVE-2026-89456 CVSS: 7.0 HIGH Published: 2026-09-11T20:19:26.387

In the Linux kernel, the following vulnerability has been resolved:

s390/dasd: Propagate partial completion length across ERP recovery

dasd_default_erp_postaction() copies the timing and device state from the finished ERP request back to the original request but drops proc_bytes. A request that was partially completed, an ESE read

Indicators of compromise

CVE-2026-89456cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-89456