NULL pointer dereference in Linux kernel arm arm-smmu driver



| Updated: 2025-05-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-56568
CWE-ID CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU102127

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-2024-56568

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 arm_smmu_probe_device() function in drivers/iommu/arm/arm-smmu/arm-smmu.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1 - 6.1.119

CPE2.3 External links

https://git.kernel.org/stable/c/229e6ee43d2a160a1592b83aad620d6027084aad
https://git.kernel.org/stable/c/4a9485918a042e3114890dfbe19839a1897f8b2c
https://git.kernel.org/stable/c/5018696b19bc6c021e934a8a59f4b1dd8c0ac9f8
https://git.kernel.org/stable/c/c2527d07c7e9cda2c6165d5edccf74752baac1b0
https://git.kernel.org/stable/c/dc02407ea952e20c544a078a6be2e6f008327973
https://git.kernel.org/stable/c/f8f794f387ad21c4696e5cd0626cb6f8a5f6aea5
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120


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.



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