CVE-2021-47425

i2c: acpi: fix resource leak in reconfiguration device addition

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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]

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: i2c: acpi: corrige la fuga de recursos en la reconfiguración del dispositivo añdido acpi_i2c_find_adapter_by_handle() llama a bus_find_device() que toma una referencia en el adaptador que nunca se libera, lo que resultará en una fuga de recuento de referencias y haga que el adaptador no sea extraíble. Asegúrese de colocar el adaptador después de crear el cliente de la misma manera que lo hacemos para OF. [wsa: título fijo]

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-21 CVE Reserved
2024-05-21 CVE Published
2024-05-22 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (7)

URL	Tag	Source
https://git.kernel.org/stable/c/525e6fabeae286848592363bda13bc34b59bb5ac	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63	2021-10-17
https://git.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989	2021-10-13
https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b	2021-10-13
https://git.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95	2021-10-13
https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694	2021-10-13
https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f	2021-10-02

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.8 < 4.14.251 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.8 < 4.14.251"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.8 < 4.19.211 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.8 < 4.19.211"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.8 < 5.4.153 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.8 < 5.4.153"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.8 < 5.10.73 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.8 < 5.10.73"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.8 < 5.14.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.8 < 5.14.12"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.8 < 5.15 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.8 < 5.15"		en		Affected