CVE-2026-98723
kernel: nvmet: copy the hostid into the ctrl before creating PR pc_refs
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's NVMe target (nvmet) subsystem. An uninitialized host identifier in persistent reservation references prevents the target from aborting and draining in-flight input/output (I/O) requests during a Preempt and Abort operation. A connected NVMe host can trigger this condition when preempting a reservation, allowing conflicting operations from the prior host to continue and potentially leading to data corruption.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.9CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
CWE-908 · Use of Uninitialized Resource