CVE-2022-50734 nvmem: core: Fix memleak in nvmem_register()
A memory leak in the Linux kernel nvmem core allows local attackers to cause resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-50734?
CVE-2022-50734 is a memory corruption vulnerability in Linux, published on 24 Dec 2025.
Official description
In the Linux kernel, the following vulnerability has been resolved:
nvmem: core: Fix memleak in nvmem_register()
dev_set_name will alloc memory for nvmem->dev.kobj.name in nvmem_register, when nvmem_validate_keepouts failed, nvmem's memory will be freed and return, but nobody will free memory for nvmem->dev.kobj.name, there will be memleak, so moving nvmem_validate_keepouts() after device_register() and let the device core deal with cleaning name in error cases.
Which versions are affected by CVE-2022-50734?
How do I fix CVE-2022-50734?
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-2022-50734 being exploited?
There is no known exploitation of CVE-2022-50734 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50734, GHSA-p8g3-3wvp-3jxw, UBUNTU-CVE-2022-50734.