Memory leak in Linux kernel vfio pci driver

1) Memory leak

EUVDB-ID: #VU93020

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-38632

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the vfio_intx_enable() function in drivers/vfio/pci/vfio_pci_intrs.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/0bd22a4966d55f1d2c127a53300d5c2b50152376
http://git.kernel.org/stable/c/35fef97c33f3d3ca0455f9a8e2a3f2c1f8cc9140
http://git.kernel.org/stable/c/82b951e6fbd31d85ae7f4feb5f00ddd4c5d256e2

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.