#VU100831 NULL pointer dereference in Linux kernel - CVE-2024-53092

Vulnerability identifier: #VU100831

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-2024-53092

CWE-ID: CWE-476

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 NULL pointer dereference within the vp_avq_index() and vp_modern_avq_cleanup() functions in drivers/virtio/virtio_pci_modern.c, within the MODULE_PARM_DESC(), vp_del_vq(), vp_del_vqs() and vp_find_one_vq_msix() functions in drivers/virtio/virtio_pci_common.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/018d3d4ad4be7fbc95d8a2367642a32d21df55c7
https://git.kernel.org/stable/c/97ee04feb682c906a1fa973ebe586fe91567d165

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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.