CVE-2026-72128

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

nvmet: fix refcount leak in nvmet_sq_create()

In nvmet_sq_create(), a reference on the ctrl is taken via kref_get_unless_zero() before calling nvmet_check_sqid(). If nvmet_check_sqid() fails, the function returns the error directly without releasing the reference, leading to a leak.

Fix this by jumping to the “ctrl_put” label, which already performs the necessary nvmet_ctrl_put(ctrl). This ensures the reference is properly released on this error path.

Affected product:

AlmaLinux 9.2 ESU , Debian 10 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU

Affected packages:

linux @ 4.19.0 (+3 more)

Live-patch status from KernelCare for each operating system.