CVE-2024-35925 block: prevent division by zero in blk_rq_stat_sum()
A division by zero error in the Linux kernel block layer can cause a system crash, requiring a kernel patch to prevent 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-2024-35925?
CVE-2024-35925 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 19 May 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:
block: prevent division by zero in blk_rq_stat_sum()
The expression dst->nr_samples + src->nr_samples may have zero value on overflow. It is necessary to add a check to avoid division by zero.
Found by Linux Verification Center (linuxtesting.org) with Svace.
Weakness: CWE-369
Which versions are affected by CVE-2024-35925?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-35925?
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-2024-35925 being exploited?
There is no known exploitation of CVE-2024-35925 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-35925, DEBIAN-CVE-2024-35925, GHSA-p6hw-pm34-65v4, UBUNTU-CVE-2024-35925.