CVE-2026-89458

CVE-2026-89458 affects the s390/dasd driver in the Linux kernel. The function dasd_int_handler() completes an NRF read of an unallocated ESE track by calling ese_read() and unconditionally marking the request as DASD_CQR_SUCCESS. However, dasd_eckd_ese_read() can return an error before zeroing th...