CVE-2026-99206
kernel: scsi: target: iscsi: Fix race in discovery auth updates
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 28, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's iSCSI target subsystem. A race condition occurs when concurrent processes update discovery authentication parameters through the configuration filesystem (configfs) without proper locking. A local user could exploit this vulnerability to trigger a double-free condition, potentially resulting in arbitrary code execution or a system crash leading to a Denial of Service (DoS).
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 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-1341 · Multiple Releases of Same Resource or Handle