CVEvulnerability

CVE-2025-21856

7.8 HIGH Published 2025-03-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2025-03-12
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: s390/ism: add release function for struct device According to device_release() in /drivers/base/core.c, a device without a release function is a broken device and must be fixed. The current code directly frees the device after calling device_add() without waiting for other kernel parts to release their references. Thus, a reference could still be held to a struct device, e.g., by sysfs, leading to potential use-after-free issues if a proper release function is not set.

Affected configurations

• linux linux kernel (>= 6.3 < 6.6.80) • linux linux kernel (>= 6.7 < 6.12.17) • linux linux kernel (>= 6.13 < 6.13.5) • linux linux kernel 6.14

Related

Weakness · CWE (1)

References