CVE-2026-89861

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89861

Key Details

CVE	CVE-2026-89861
CVSS Score / Version	8.1 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is network; attack complexity is high; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()

In the format 1 path, the virtual port is located on ha->vp_list while

holding vport_slock, but the lock is dropped before vp is used:

qla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/

REGISTER_FDMI_NEEDED are set on vp. No reference is taken across that

window, so a concurrent qla24xx_deallocate_vp_id() can tear the vport

down and free it, leading to a use-after-free.

Take a vport reference (vref_count) under vport_slock when the matching

vp is found, and drop it after the last use of

vp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before

unlinking and freeing the vport, so the pointer stays valid. This

matches the reference idiom already used by the other ha->vp_list

traversals. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89861
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89861

Source

Reference

NVD

CVE