CVE-2026-89844

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89844

Key Details

CVE	CVE-2026-89844
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is adjacent; attack complexity is low; 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_slock for host map update in report ID acquisition

qla24xx_report_id_acquisition() format-1 handling drops vport_slock after

taking the vport reference and then calls qla_update_host_map() without

the lock. That reaches qla_update_vp_map(), which mutates the ha->host_map

btree via btree_insert32()/btree_update32()/btree_remove32() and is

documented to require vport_slock to be held by the caller. Running it

unlocked can race concurrent host_map updates and corrupt the btree.

The format-2 path in the same function already wraps its host_map update

(SET_AL_PA) in vport_slock; the format-1 path is the lone outlier.

Hold vport_slock across the format-1 qla_update_host_map() call to honor

the documented locking contract. The vref_count taken in the loop keeps

the vport valid, so this only adds the missing host_map serialization. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89844
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89844

Source

Reference

NVD

CVE