CVE-2022-50703 soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()
A refcount leak in the Qualcomm SMSM driver can lead to memory exhaustion and denial of service, requiring kernel patching.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-50703?
CVE-2022-50703 is a memory corruption vulnerability in Linux, published on 24 Dec 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:
soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()
There are two refcount leak bugs in qcom_smsm_probe():
(1) The 'local_node' is escaped out from for_each_child_of_node() as the break of iteration, we should call of_node_put() for it in error path or when it is not used anymore. (2) The 'node' is escaped out from for_each_available_child_of_node() as the 'goto', we should call of_node_put() for it in goto target.
Which versions are affected by CVE-2022-50703?
How do I fix CVE-2022-50703?
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-2022-50703 being exploited?
There is no known exploitation of CVE-2022-50703 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50703, GHSA-mgcr-xqh2-vjw4, UBUNTU-CVE-2022-50703.