Improper locking in Linux kernel hw irdma driver

1) Improper locking

EUVDB-ID: #VU93387

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48694

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to improper locking within the irdma_generate_flush_completions() function in drivers/infiniband/hw/irdma/utils.c. A local user can execute arbitrary code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/14d148401c5202fec3a071e24785481d540b22c3
https://git.kernel.org/stable/c/5becc531a3fa8da75158a8993f56cc3e0717716e
https://git.kernel.org/stable/c/ead54ced6321099978d30d62dc49c282a6e70574

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.