// For flags

CVE-2021-47425

i2c: acpi: fix resource leak in reconfiguration device addition

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*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]

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]

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-21 CVE Reserved
  • 2024-05-21 CVE Published
  • 2024-12-19 CVE Updated
  • 2025-03-29 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
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