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Vulnerability record · CVE-2023-4134 · published 14 November 2024

CVE-2023-4134: Linux kernel use after free vulnerability

Linux · Linux Kernel

A use-after-free vulnerability was found in the cyttsp4_core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdog_timer from the workqueue. This could allow a local user to crash the system, causing a denial of service.

5.5 CVSS 3.1 Medium EPSS 0.20% · top 91.2% CWE-416 · Use after free
5.5CVSS 3.1 base score
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A use-after-free vulnerability was found in the cyttsp4_core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdog_timer from the workqueue. This could allow a local user to crash the system, causing a denial of service.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2023-4134 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221700 Issue TrackingPatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-4134), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.