CVE-2024-36973

misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()

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:

misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()

When auxiliary_device_add() returns error and then calls
auxiliary_device_uninit(), callback function
gp_auxiliary_device_release() calls ida_free() and
kfree(aux_device_wrapper) to free memory. We should't
call them again in the error handling path.

Fix this by skipping the redundant cleanup functions.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc: microchip: pci1xxxx: corrige double free en el manejo de errores de gp_aux_bus_probe() Cuando auxiliar_device_add() devuelve error y luego llama a auxiliar_device_uninit(), la función de devolución de llamada gp_auxiliary_device_release() llama a ida_free( ) y kfree(aux_device_wrapper) para liberar memoria. No deberíamos volver a llamarlos en la ruta de manejo de errores. Solucione este problema omitiendo las funciones de limpieza redundantes.

*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

2024-05-30 CVE Reserved
2024-06-17 CVE Published
2024-06-22 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/393fc2f5948fd340d016a9557eea6e1ac2f6c60c	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/34ae447b138680b5ed3660f7d935ff3faf88ba1a	2024-06-21
https://git.kernel.org/stable/c/86c9713602f786f441630c4ee02891987f8618b9	2024-06-21
https://git.kernel.org/stable/c/1efe551982297924d05a367aa2b6ec3d275d5742	2024-06-21
https://git.kernel.org/stable/c/086c6cbcc563c81d55257f9b27e14faf1d0963d3	2024-06-04

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"				>= 6.1 < 6.1.95 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.1.95"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.1 < 6.6.35 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.6.35"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.1 < 6.9.6 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.9.6"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.1 < 6.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.10"		en		Affected