Vulnerability identifier: #VU96598

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2024-44943

CWE-ID: CWE-399

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 resource management error within the hugetlb_follow_page_mask() function in mm/hugetlb.c, within the follow_devmap_pmd(), follow_devmap_pud() and follow_trans_huge_pmd() functions in mm/huge_memory.c, within the try_grab_folio(), gup_put_folio(), follow_page_pte(), get_gate_page(), undo_dev_pagemap(), gup_pte_range(), __gup_device_huge(), gup_hugepte(), gup_huge_pmd(), gup_huge_pud() and gup_huge_pgd() functions in mm/gup.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/26273f5f4cf68b29414e403837093408a9c98e1f
http://git.kernel.org/stable/c/f442fa6141379a20b48ae3efabee827a3d260787

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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.