CVE-2024-46792 riscv: misaligned: Restrict user access to kernel memory
A local attacker can read arbitrary kernel memory due to missing access checks in RISC-V misaligned access handling.
- 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-2024-46792?
CVE-2024-46792 is a high-severity vulnerability in Linux kernel, published on 18 Sep 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:
riscv: misaligned: Restrict user access to kernel memory
raw_copy_{to,from}_user() do not call access_ok(), so this code allowed userspace to access any virtual memory address.
Which versions are affected by CVE-2024-46792?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46792?
Apply the vendor's patch.
Is CVE-2024-46792 being exploited?
There is no known exploitation of CVE-2024-46792 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-46792, DEBIAN-CVE-2024-46792, GHSA-5937-rmjq-m7qm, UBUNTU-CVE-2024-46792.