CVE-2024-39463

kernel: 9p: add missing locking around taking dentry fid list

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Severity

Important

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · June 25, 2024

Updated · February 2, 2026

Description

A potential use-after-free on dentry's d_fsdata fid list was found in the Linux kernel.This happens, when a thread looks up a fid through dentry while another thread unlinks it. This may lead to information leak or a crash.

Statement

No Red Hat products are affected by this vulnerability.

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-416 · Use After Free