CVE-2022-49821

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-05-01 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible memory leak in mISDN_dsp_element_register() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, use put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. The 'entry' is going to be freed in mISDN_dsp_dev_release(), so the kfree() is removed. list_del() is called in mISDN_dsp_dev_release(), so it need be initialized.

Weakness Classification (1)

CWE-401

Affected Software (15)

Vendor	Product	Version
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < bbd53d05c4c892080ef3b617eff4f57903acecb9
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < b119bedbefb7dd9ed8bf8cb9f1056504250d610e
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < 727ed7d28348c026c7ef4d852f3d0e5054d376e8
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < 0f2c681900a01e3f23789bca26d88268c3d5b51d
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < 083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < 7a05e3929668c8cfef495c69752a9e91fac4878f
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < d4b8394725079670be309f9a35ad88a8cbbaaefd
Linux	Linux	1fa5ae857bb14f6046205171d98506d8112dd74e < 98a2ac1ca8fd6eca6867726fe238d06e75eb1acd
Linux	Linux	2.6.30
linux	linux_kernel	2.6.30 – 4.9.334
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1