NULL pointer dereference in Linux kernel arm arm-smmu driver

1) NULL pointer dereference

EUVDB-ID: #VU90382

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-2024-36884

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.8 - 6.8.9

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.6:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/e83de8f05b998e227b48cdeea54cba4c9d66d3aa
https://git.kernel.org/stable/c/65ade5653f5ab5a21635e51d0c65e95f490f5b6f
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.10

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.