#VU107730 NULL pointer dereference in Linux kernel - CVE-2025-22015

Vulnerability identifier: #VU107730

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-2025-22015

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 folio_migrate_mapping() function in mm/migrate.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12 - 6.12.20

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External links
https://git.kernel.org/stable/c/29124ae980e2860f0eec7355949d3d3292ee81da
https://git.kernel.org/stable/c/49100c0b070e900f87c8fac3be9b9ef8a30fa673
https://git.kernel.org/stable/c/60cf233b585cdf1f3c5e52d1225606b86acd08b0
https://git.kernel.org/stable/c/75cfb92eb63298d717b6b0118f91ba12c4fcfeb5
https://git.kernel.org/stable/c/c057ee03f751d6cecf7ee64f52f6545d94082aaa
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.21

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?