PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2018-20836

CVE-2018-20836

kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c leads to use-after-free

Loading…

Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · September 25, 2018

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel’s implementation of the SAS expander subsystem, where a race condition exists in the smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c. An attacker could abuse this flaw to corrupt memory and escalate privileges.

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 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-366 · Race Condition within a Thread