CVE Database›Document archive›CVE-2026-89779

CVE-2026-89779

kernel: fs/ntfs3: validate ef->size covers the record's name and value

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · September 16, 2026

Updated · October 17, 2026

Description

A flaw was found in the Linux kernel's ntfs3 filesystem driver. This vulnerability allows a local attacker to craft an Extended Attribute (EA) record with an undersized ef->size value. When processed, this can lead to an out-of-bounds read, resulting in the disclosure of sensitive heap memory to userspace. This information disclosure could potentially expose confidential system data.

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 · 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CWE-125 · Out-of-bounds Read