CVE-2024-38554

In the Linux kernel, the following vulnerability has been resolved: ax25: Fix reference count leak issue of net_device There is a reference count leak issue of the object "net_device" in ax25_dev_device_down(). When the ax25 device is shutting down, the ax25_dev_device_down() drops the reference count of net_device one or zero times depending on if we goto unlock_put or not, which will cause memory leak. In order to solve the above issue, decrease the reference count of net_device after dev->ax25_ptr is set to null.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2	Patch
https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad	Patch
https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a	Patch
https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b	Patch
https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9	Patch
https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2	Patch
https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad	Patch
https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a	Patch
https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b	Patch
https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

21 Nov 2024, 09:26

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2 - Patch~~	() https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2 - Patch
References	~~() https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad - Patch~~	() https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad - Patch
References	~~() https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a - Patch~~	() https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a - Patch
References	~~() https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b - Patch~~	() https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b - Patch
References	~~() https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9 - Patch~~	() https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9 - Patch

27 Aug 2024, 19:55

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2 -~~	() https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2 - Patch
References	~~() https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad -~~	() https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad - Patch
References	~~() https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a -~~	() https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a - Patch
References	~~() https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b -~~	() https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b - Patch
References	~~() https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9 -~~	() https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9 - Patch
CWE		NVD-CWE-Other
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CPE		cpe:2.3:o:linux:linux_kernel::::::::
First Time		Linux Linux linux Kernel

20 Jun 2024, 12:44

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ax25: Solucionar el problema de fuga del recuento de referencias de net_device Hay un problema de fuga del recuento de referencias del objeto "net_device" en ax25_dev_device_down(). Cuando el dispositivo ax25 se está apagando, ax25_dev_device_down() elimina el recuento de referencia de net_device una o cero veces dependiendo de si vamos a unlock_put o no, lo que provocará una pérdida de memoria. Para resolver el problema anterior, reduzca el recuento de referencias de net_device después de que dev->ax25_ptr se establezca en nulo.

19 Jun 2024, 14:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-06-19 14:15

Updated : 2024-11-21 09:26

NVD link : CVE-2024-38554

Mitre link : CVE-2024-38554

CVE.ORG link : CVE-2024-38554

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-Other

5.5 /10