#VU91514 Improper locking in Linux kernel - CVE-2024-35957

Vulnerability identifier: #VU91514

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-2024-35957

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 intel_iommu_probe_device() and intel_iommu_release_device() functions in drivers/iommu/intel/iommu.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.8, 6.8 rc1, 6.8 rc2, 6.8 rc5, 6.8.1, 6.8.2, 6.8.3, 6.8.4, 6.8.5, 6.8.6

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External links
https://git.kernel.org/stable/c/fba8ca3e6f608b92e54271fdbd3ce569361939fc
https://git.kernel.org/stable/c/89436f4f54125b1297aec1f466efd8acb4ec613d
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.7

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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.