Input validation error in Linux kernel dma driver

1) Input validation error

EUVDB-ID: #VU97572

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2024-46716

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation within the msgdma_free_descriptor() and msgdma_chan_desc_cleanup() functions in drivers/dma/altera-msgdma.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

External links

http://git.kernel.org/stable/c/a3480e59fdbe5585d2d1eff0bed7671583acf725
http://git.kernel.org/stable/c/20bf2920a869f9dbda0ef8c94c87d1901a64a716
http://git.kernel.org/stable/c/db67686676c7becc1910bf1d6d51505876821863
http://git.kernel.org/stable/c/54e4ada1a4206f878e345ae01cf37347d803d1b1

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.