Unauthenticated Remote Double-Free in Linux Linux Kernel Rates 9.8 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-43414

Key Details

CVE	CVE-2026-43414
CVSS Score / Version	9.8 (Critical) / CVSS v3.1
Updated	2026-10-15
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is network; 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
Classified as	CWE-415 (Double Free)
Exploitation prediction (EPSS)	0.38% probability of exploitation in the next 30 days (30% percentile) -- FIRST.org's EPSS model.

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: Completely fix fcport double free

In qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free().

When an error happens, this function is called by qla2x00_sp_release(),

when kref_put() releases the first and the last reference.

qla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport().

Doing it one more time after kref_put() is a bad idea. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-43414
CVE	https://www.cve.org/CVERecord?id=CVE-2026-43414

Source

Reference

NVD

CVE