CVE-2023-53604 dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path
A memory leak in the Linux kernel dm integrity module can lead to resource exhaustion and denial of service if initialization fails.
- 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-2023-53604?
CVE-2023-53604 is a high-severity memory corruption vulnerability in Linux kernel, published on 4 Oct 2025. 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:
dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path
Otherwise the journal_io_cache will leak if dm_register_target() fails.
Which versions are affected by CVE-2023-53604?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53604?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-53604 being exploited?
There is no known exploitation of CVE-2023-53604 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53604, DEBIAN-CVE-2023-53604, GHSA-vh29-7344-hrgw, UBUNTU-CVE-2023-53604.