CVE-2021-47425

MEDIUM

Linux Kernel 4.8-4.14.251 - Use-After-Free in I2C ACPI Reconfiguration

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: acpi: fix resource leak in reconfiguration device addition acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a reference on the adapter which is never released which will result in a reference count leak and render the adapter unremovable. Make sure to put the adapter after creating the client in the same manner that we do for OF. [wsa: fixed title]

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 14.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (16)
Linux/Linux < 4.8
Linux/Linux 4.14.251 - 4.14.*
Linux/Linux 4.19.211 - 4.19.*
Linux/Linux 4.8
Linux/Linux 5.10.73 - 5.10.*
Linux/Linux 5.14.12 - 5.14.*
Linux/Linux 5.15
Linux/Linux 5.4.153 - 5.4.*
Linux/Linux 525e6fabeae286848592363bda13bc34b59bb5ac - 3d9d458a8aaafa47268ea4f1b4114a9f12927989
Linux/Linux 525e6fabeae286848592363bda13bc34b59bb5ac - 60bacf259e8c2eb2324f3e13275200baaee9494b
... and 6 more
Published May 21, 2024
Tracked Since Feb 18, 2026