#VU98981 NULL pointer dereference in Linux kernel - CVE-2024-47687

Vulnerability identifier: #VU98981

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-2024-47687

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 mlx5_vdpa_show_mr_leaks() function in drivers/vdpa/mlx5/core/mr.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/b6fbb1c7801f46a0e5461c02904eab0d7535c790
https://git.kernel.org/stable/c/5fe351def237df1ad29aa8af574350bc5340b4cf
https://git.kernel.org/stable/c/dc12502905b7a3de9097ea6b98870470c2921e09

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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.