CVE-2024-42277 iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en
A null pointer dereference in the Linux kernel's SPRD IOMMU driver allows local attackers to cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-42277?
CVE-2024-42277 is a medium-severity vulnerability in Linux kernel, published on 17 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en
In sprd_iommu_cleanup() before calling function sprd_iommu_hw_en() dom->sdev is equal to NULL, which leads to null dereference.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Weakness: CWE-476
Which versions are affected by CVE-2024-42277?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42277?
Apply the vendor's patch.
Is CVE-2024-42277 being exploited?
There is no known exploitation of CVE-2024-42277 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-49011, BELL-CVE-2024-42277, DEBIAN-CVE-2024-42277, GHSA-92g2-6qfc-5xw4, UBUNTU-CVE-2024-42277.