CVE-2022-50836 remoteproc: sysmon: fix memory leak in qcom_add_sysmon_subdev()
A memory leak in the Linux kernel's remoteproc sysmon driver can lead to 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-2022-50836?
CVE-2022-50836 is a memory corruption vulnerability in Linux, published on 30 Dec 2025.
Official description
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: sysmon: fix memory leak in qcom_add_sysmon_subdev()
The kfree() should be called when of_irq_get_byname() fails or devm_request_threaded_irq() fails in qcom_add_sysmon_subdev(), otherwise there will be a memory leak, so add kfree() to fix it.
Which versions are affected by CVE-2022-50836?
How do I fix CVE-2022-50836?
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-2022-50836 being exploited?
There is no known exploitation of CVE-2022-50836 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50836, GHSA-c5c5-86g3-j5v4, UBUNTU-CVE-2022-50836.