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.
References 3
https://git.kernel.org/stable/c/26355295ce21cb046546085c3a81abe68160a784
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/34b9a83c50660148bde01cde16451dbe78369749
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fcef60ed5f714a24104eb021d6397a67955ebeff
416baaa9-dc9f-4396-8d5f-8c081fb06d67