CVE-2026-89458

A flaw was found in the Linux kernel's s390/dasd component. The dasdinthandler function incorrectly marks failed Extended Sense Data ESE read operations as successful when processing unallocated ESE tracks. This leads to the block layer receiving stale or uninitialized memory instead of properly...

CVE-2026-89458

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasdinthandler completes an NRF read of an unallocated ESE track by calling eseread and unconditionally marking the request DASDCQRSUCCESS. dasdeckdeseread can return an...

EUVD-2026-76364

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasdinthandler completes an NRF read of an unallocated ESE track by calling eseread and unconditionally marking the request DASDCQRSUCCESS. dasdeckdeseread can return an...

CVE-2026-89458 s390/dasd: Do not complete a failed ESE read as successful

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasdinthandler completes an NRF read of an unallocated ESE track by calling eseread and unconditionally marking the request DASDCQRSUCCESS. dasdeckdeseread can return an...

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...

PT-2026-90174

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasd int handler completes an NRF read of an unallocated ESE track by calling ese read and unconditionally marking the request DASD CQR SUCCESS. dasd eckd ese read can...