#VU102127 NULL pointer dereference in Linux kernel - CVE-2024-56568

Vulnerability identifier: #VU102127

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-2024-56568

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 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: All versions

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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

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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.