6.12-stable review patch. If anyone has any objections, please let me know.
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From: Miaoqian Lin linmq006@gmail.com
commit b41ca62c0019de1321d75f2b2f274a28784a41ed upstream.
pci_get_device() will increase the reference count for the returned pci_dev, and also decrease the reference count for the input parameter from if it is not NULL.
If we break the loop in with 'vf_pdev' not NULL. We need to call pci_dev_put() to decrease the reference count.
Found via static anlaysis and this is similar to commit c508eb042d97 ("perf/x86/intel/uncore: Fix reference count leak in sad_cfg_iio_topology()")
Fixes: 8b6c724cdab8 ("virtio: vdpa: vDPA driver for Marvell OCTEON DPU devices") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Michael S. Tsirkin mst@redhat.com Message-Id: 20251027060737.33815-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/vdpa/octeon_ep/octep_vdpa_main.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/vdpa/octeon_ep/octep_vdpa_main.c +++ b/drivers/vdpa/octeon_ep/octep_vdpa_main.c @@ -692,6 +692,7 @@ static int octep_sriov_enable(struct pci octep_vdpa_assign_barspace(vf_pdev, pdev, index); if (++index == num_vfs) { done = true; + pci_dev_put(vf_pdev); break; } }