CVE-2026-72086

A flaw was found in the Linux kernel's scsi: xen: scsiback component. A pvSCSI guest can trigger a resource leak by issuing specific SCSI Small Computer System Interface requests when a task management operation fails. This vulnerability allows the guest to leak command tags associated with a...

CVE-2026-72085

A flaw was found in the Linux kernel's scsi: xen: scsiback component. This vulnerability allows a malicious virtualized SCSI pvSCSI guest to trigger a reference count underflow by sending specially crafted requests. This can lead to a denial of service, potentially stopping a Logical Unit Number...

CVE-2026-72086

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Free the command tag on the TMR submit-failure path scsibackdeviceaction obtains a command tag in scsibackgetpendreq and submits a task-management request with targetsubmittmr. When targetsubmittmr fails it...

EUVD-2026-59044

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Free the command tag on the TMR submit-failure path scsibackdeviceaction obtains a command tag in scsibackgetpendreq and submits a task-management request with targetsubmittmr. When targetsubmittmr fails it...

CVE-2026-72085

CVE-2026-72085 concerns the Linux kernel SCSI xen scsiback path. A path in scsiback_get_pend_req() creates a pending command with an uninitialized or not-yet-kref’d se_cmd; if a submission is aborted via a bad grant or unknown ring_req.act, transport_generic_free_cmd() underflows the reference co...

Linux Distros Unpatched Vulnerability : CVE-2026-72086

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - scsi: xen: scsiback: Free the command tag on the TMR submit-failure path scsibackdeviceaction obtains a command tag in scsibackgetpendreq and submits a...