#VU108868 NULL pointer dereference in Linux kernel - CVE-2025-37888

Vulnerability identifier: #VU108868

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-2025-37888

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_create_inner_ttc_table() and mlx5_create_ttc_table() functions in drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14, 6.14.1, 6.14.2, 6.14.3, 6.14.4

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External links
https://git.kernel.org/stable/c/0b682680b12b08cd62b113ea92b2938195de1dfe
https://git.kernel.org/stable/c/91037037ee3d611ce17f39d75f79c7de394b122a
https://git.kernel.org/stable/c/ecd9d2647ddb4f42a121de648e48659ae1856c39
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.5

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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.