CVE-2026-98128 scsi: mpi3mr: Fix target device refcount leak in mpi3mr_sas_port_add()
A refcount leak in the mpi3mr SCSI driver prevents device structure release, potentially leading to memory exhaustion and denial of service.
- 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-2026-98128?
CVE-2026-98128 is a medium-severity memory corruption vulnerability in Linux kernel, published on 25 Sep 2026. 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:
scsi: mpi3mr: Fix target device refcount leak in mpi3mr_sas_port_add()
mpi3mr_get_tgtdev_by_addr() increments the target device kref when it returns a device. If a subsequent error triggers a goto out_fail after the tgtdev reference is acquired, the reference is never released because the out_fail path does not call mpi3mr_tgtdev_put(). This prevents the target device structure from ever being freed.
Add a tgtdev put in the out_fail path, guarded by a NULL check since tgtdev is only acquired for SAS_END_DEVICE types and the same cleanup path is shared by earlier error cases where tgtdev is still NULL.
Weakness: CWE-401
Which versions are affected by CVE-2026-98128?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-98128?
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-2026-98128 being exploited?
There is no known exploitation of CVE-2026-98128 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-104706, BELL-CVE-2026-98128, DEBIAN-CVE-2026-98128, GHSA-66fg-4xh5-8jcx, UBUNTU-CVE-2026-98128.