#VU99828 Improper locking in Linux kernel - CVE-2024-50095

Vulnerability identifier: #VU99828

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-50095

CWE-ID: CWE-667

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to improper locking within the retry_send() and timeout_sends() functions in drivers/infiniband/core/mad.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

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External links
https://git.kernel.org/stable/c/713adaf0ecfc49405f6e5d9e409d984f628de818
https://git.kernel.org/stable/c/7022a517bf1ca37ef5a474365bcc5eafd345a13a
https://git.kernel.org/stable/c/e80eadb3604a92d2d086e956b8b2692b699d4d0a
https://git.kernel.org/stable/c/a195a42dd25ca4f12489687065d00be64939409f
https://git.kernel.org/stable/c/3e799fa463508abe7a738ce5d0f62a8dfd05262a
https://git.kernel.org/stable/c/2a777679b8ccd09a9a65ea0716ef10365179caac

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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.