6.6-stable review patch. If anyone has any objections, please let me know.
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From: Mathias Nyman mathias.nyman@linux.intel.com
commit edcbe06453ddfde21f6aa763f7cab655f26133cc upstream.
Suspend-resume cycle test revealed a memory leak in 6.17-rc3
Turns out the slot_id race fix changes accidentally ends up calling xhci_free_virt_device() with an incorrect vdev parameter. The vdev variable was reused for temporary purposes right before calling xhci_free_virt_device().
Fix this by passing the correct vdev parameter.
The slot_id race fix that caused this regression was targeted for stable, so this needs to be applied there as well.
Fixes: 2eb03376151b ("usb: xhci: Fix slot_id resource race conflict") Reported-by: David Wang 00107082@163.com Closes: https://lore.kernel.org/linux-usb/20250829181354.4450-1-00107082@163.com Suggested-by: Michal Pecio michal.pecio@gmail.com Suggested-by: David Wang 00107082@163.com Cc: stable@vger.kernel.org Tested-by: David Wang 00107082@163.com Signed-off-by: Mathias Nyman mathias.nyman@linux.intel.com Link: https://lore.kernel.org/r/20250902105306.877476-4-mathias.nyman@linux.intel.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/host/xhci-mem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -945,7 +945,7 @@ static void xhci_free_virt_devices_depth out: /* we are now at a leaf device */ xhci_debugfs_remove_slot(xhci, slot_id); - xhci_free_virt_device(xhci, vdev, slot_id); + xhci_free_virt_device(xhci, xhci->devs[slot_id], slot_id); }
int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,