Vulnerability identifier: #VU90774

Vulnerability risk: Low

CVSSv3.1: 4.8 [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-2024-26976

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 async_pf_execute(), kvm_clear_async_pf_completion_queue(), kvm_check_async_pf_completion() and kvm_setup_async_pf() functions in virt/kvm/async_pf.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/ab2c2f5d9576112ad22cfd3798071cb74693b1f5
http://git.kernel.org/stable/c/82e25cc1c2e93c3023da98be282322fc08b61ffb
http://git.kernel.org/stable/c/f8730d6335e5f43d09151fca1f0f41922209a264
http://git.kernel.org/stable/c/83d3c5e309611ef593e2fcb78444fc8ceedf9bac
http://git.kernel.org/stable/c/b54478d20375874aeee257744dedfd3e413432ff
http://git.kernel.org/stable/c/a75afe480d4349c524d9c659b1a5a544dbc39a98
http://git.kernel.org/stable/c/4f3a3bce428fb439c66a578adc447afce7b4a750
http://git.kernel.org/stable/c/caa9af2e27c275e089d702cfbaaece3b42bca31b
http://git.kernel.org/stable/c/3d75b8aa5c29058a512db29da7cbee8052724157

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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.