CVE-2024-47665 i3c: mipi-i3c-hci: Error out instead on BUG_ON() in IBI DMA setup
A local attacker can trigger a kernel crash via BUG_ON in the MIPI I3C HCI driver during DMA setup, causing system denial of service.
- 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-2024-47665?
CVE-2024-47665 is a medium-severity denial of service vulnerability in Linux kernel, published on 9 Oct 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:
i3c: mipi-i3c-hci: Error out instead on BUG_ON() in IBI DMA setup
Definitely condition dma_get_cache_alignment * defined value > 256 during driver initialization is not reason to BUG_ON(). Turn that to graceful error out with -EINVAL.
Which versions are affected by CVE-2024-47665?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-47665?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-47665 being exploited?
There is no known exploitation of CVE-2024-47665 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-47665, DEBIAN-CVE-2024-47665, GHSA-h72q-rx75-mpgf, ROOT-OS-DEBIAN-11-CVE-2024-47665, UBUNTU-CVE-2024-47665.