CVE-2024-42299 fs/ntfs3: Update log->page_{mask,bits} if log->page_size changed
A logic error in the Linux kernel NTFS3 driver causes a system panic when mounting an NTFS filesystem on a system with a different page size.
- 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-2024-42299?
CVE-2024-42299 is a high-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:
fs/ntfs3: Update log->page_{mask,bits} if log->page_size changed
If an NTFS file system is mounted to another system with different PAGE_SIZE from the original system, log->page_size will change in log_replay(), but log->page_{mask,bits} don't change correspondingly. This will cause a panic because "u32 bytes = log->page_size - page_off" will get a negative value in the later read_log_page().
Which versions are affected by CVE-2024-42299?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42299?
Apply the vendor's patch.
Is CVE-2024-42299 being exploited?
There is no known exploitation of CVE-2024-42299 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-42299, DEBIAN-CVE-2024-42299, GHSA-pmc4-69mh-84gv, UBUNTU-CVE-2024-42299.