CVE-2026-43414

CriticalCVSS 9.8

Published: 08/05/2026(UTC)Updated: 08/07/2026(UTC)Translated: 09/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.38%

30th percentile — higher than 30% of all known CVEs

Summary

In the Linux kernel, a double free of the fcport structure was found in the qla2xxx SCSI driver. The function qla2x00_els_dcmd_sp_free() frees fcport, and a subsequent free attempt after kref_put() causes a bug.

Risk Assessment

Double free memory corruption can lead to data corruption, system crashes, or potential exploitation for privilege escalation by an attacker.

Recommendation

Immediately update the Linux kernel to a version containing the fix that removes the redundant qla2x00_free_fcport() call after kref_put().

Original NVD description (English source)

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.