Patch "vfio/pci: fix potential memory leak in vfio_intx_enable()" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    vfio/pci: fix potential memory leak in vfio_intx_enable()

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     vfio-pci-fix-potential-memory-leak-in-vfio_intx_enab.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 9fc0f4853c70f603ba7f9a8184a10ed6fba19cfa
Author: Ye Bin <yebin10@xxxxxxxxxx>
Date:   Mon Apr 15 09:50:29 2024 +0800

    vfio/pci: fix potential memory leak in vfio_intx_enable()
    
    [ Upstream commit 82b951e6fbd31d85ae7f4feb5f00ddd4c5d256e2 ]
    
    If vfio_irq_ctx_alloc() failed will lead to 'name' memory leak.
    
    Fixes: 18c198c96a81 ("vfio/pci: Create persistent INTx handler")
    Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
    Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
    Acked-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
    Link: https://lore.kernel.org/r/20240415015029.3699844-1-yebin10@xxxxxxxxxx
    Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c
index 99bbd647e5d81..620134041b488 100644
--- a/drivers/vfio/pci/vfio_pci_intrs.c
+++ b/drivers/vfio/pci/vfio_pci_intrs.c
@@ -277,8 +277,10 @@ static int vfio_intx_enable(struct vfio_pci_core_device *vdev,
 		return -ENOMEM;
 
 	ctx = vfio_irq_ctx_alloc(vdev, 0);
-	if (!ctx)
+	if (!ctx) {
+		kfree(name);
 		return -ENOMEM;
+	}
 
 	ctx->name = name;
 	ctx->trigger = trigger;




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