Incorrect calculation in Linux kernel scsi qedf driver

1) Incorrect calculation

EUVDB-ID: #VU94488

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-2022-48823

CWE-ID: CWE-682 - Incorrect Calculation

Exploit availability: No

Description

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

The vulnerability exists due to incorrect calculation within the qedf_initiate_cleanup() function in drivers/scsi/qedf/qedf_io.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/7cc32ff0cd6c44a3c26de5faecfe8b5546198fad
http://git.kernel.org/stable/c/87f187e5265bc8e3b38faef8b9db864cdd61dde7
http://git.kernel.org/stable/c/6be8eaad75ca73131e2a697f0270dc8ee73814a8
http://git.kernel.org/stable/c/7fcbed38503bb34c6e6538b6a9482d1c6bead1e8
http://git.kernel.org/stable/c/5239ab63f17cee643bd4bf6addfedebaa7d4f41e

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.