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CVE-2026-74327

kernel: vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 15, 2026

Updated · August 21, 2026

Description

A flaw was found in the Linux kernel. A local attacker could trigger a null pointer dereference in the is_vm_area_hugepages() function. This occurs when find_vm_area() returns a NULL value, which is not properly handled before being dereferenced. Successful exploitation of this vulnerability could lead to a kernel crash, resulting in a denial of service.

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