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CVE-2026-90165

kernel: smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 13, 2026

Description

A flaw was found in the Linux kernel's ksmbd server. This vulnerability occurs when the ksmbd_stop_durable_scavenger function attempts to stop a kernel thread that was not properly initialized, leading to an invalid pointer dereference. An attacker could potentially exploit this to cause a system crash, resulting in 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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference